User:Osmarks

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Thanks for contributing to Esolang! A programming language is an artificial language for expressing computer programs. This is a list of esoteric languages that are completely unusable for programming even in theory, trivial and less interesting variations on existing esoteric languages, or too underspecified to determine any potential usability. Generally speaking, they are not of any interest except for potential humor value.

For esoteric languages that are potentially interesting in some way, or that are actually capable of running programs and producing a useful output, see the normal list of esoteric languages.

Like for that other list, items here will eventually be removed if they don't link to a page on this wiki.

General languages

ΔςTΞRΙςκ, a joke language that uses whitespaces and asterisks only.
�BRING BACK THE OLD SANDBOX, is a joke language in which the creator claims "is definitely a memorial language, and calling it a joke is an insult to the hundreds of people hurt in the wrath of the hostile sandbox attacks" but that's actually not the case and the whole "wrath of the hostile sandbox attacks" thing was made up. It also happens to be unusable for programming, but that should be out of the question.
🐑Ⓜ️😮🧀 is a language that uses emojis as part of its syntax.
▀▄█▌▐░▒▓ is a language where your computer has to be off to program in it.
─│┌┐└┘├┤┬┴┼ is a language where you cant exist.
!!SuperPrime
???? is a program that is only "?".
¬ is a language that only works if the universe does not exist.
"{{{{{{{{{@@^^ᵒ
"quote
+-"quote
###
& is a joke esolang that only works if that esolang doesn't exist.
( - a language that is only usable when the current user dies.
* Use Asterisks to do everything.
***
++, it's that thirdglyph language, but the thirdglyph is banned.
+- Also named ID and IDPL
+-= Modification of +-
,() (a.k.a out-parens-comma)
; is input only.
+-=*/!&# Modification of +-=
-2147483648 bytes .-. is the smallest in the "_ bytes" series.
- On August 26th, 2026, this record has been surpassed by -9223372036854775808 bytes @_@.
-25 bytes (O_o) is like Befunge but it can ~~NEVER~~ implement by an strange way and is already implemented in some strange Operating Systems, too.
-5 bytes ;) is like python but it needs 1 to end and it can ~~NEVER~~ implement by an strange way and is already implemented in some strange Operating Systems.
.exe
[[Category:No-code esolang]] [[Category:Unimplemented]] is an unimplementable no-code esolang.
嘭！哐！叮！呲！咣！ is a deadfish derivative.
蓝牙设备已准备连接 - Let Chinese go into the programming! My program just need me to write!
水滴！攻击物是水滴！
嗺둽嬖蟝恭䩡㑨
神金，害我笑了一下
掛軸key
｢Zero Existance⇩｣ - a language that only doesn't delete its own compiler when the current user is nonexistent
🕳️
🐱🐈 is THE Plushie-complete esoteric programming language
😭🙏🥀
001 can only output ASCII code 0 (NUL) as its sole command. You need the $q extension to even print a visible character.
0 Bits, 0 Bytes is the most useless ___ bits, ___ bytes language.
0 bytes XD has an interpreter with 0 bytes, but it can still output.
0x42 is HQ9+B but with only the B command.
1231 A console based language consisting of only numbers, by User:Earthrulerr
13 bytes :D is 16 bytes :P but smaller.
1 Bit, a quarter byte is a 1-bit CPU with 1/4 byte of memory.
¼ bytes :3 is 1 byte :5 but smaller; it uses bits for input.
16 bytes :P is 25 bytes written on Python.
2014 might theoretically have been usable for an entire year, but was only used for three and a half hours before it faded into uselessness.
2017 is a 2014 derivative.
2023 is similar to 2014.
2024 is similar to 2014, too.
25 bytes o:
2 Bits, 1 Byte is a 2-bit CPU with 1 byte of memory.
2 Bits and Bytes is a 2-bit CPU with any bytes of memory.
2-SSI is just InterpretMe with 2 symbols
3 Bits, 1.5 Bytes is a 3-bit CPU with 1.5 bytes (12 bits) of memory.
3 Bits, 3 Bytes is a 3-bit CPU with 3 bytes of memory.
4 bits, 8 bytes is a 4-bit CPU with 8 bytes of memory.
42 is a family of ex-nihilo self-interpreting Gödel numbering languages.
420 is a Chicken derivative that only works on the 20th of April.
7 bytes XD is literally smaller than 13 bytes :D, at the cost of output.
8 Byte Lang :/ has an 8 byte interpreter. It also breaks the chain for the sake of being stupid.
8BallScript is another way of writing binary.
9 bytes :I is 13 bytes :D but smaller and fully unusable
ඞlang by Yes (talk) 16:19, 3 July 2022 (UTC)
AAAAAAAAAAAAAAaaaaaaaaaEEEEEEEaaaaaaaaaaaa by Linker-Error (talk) 02:02, 9 August 2023 (UTC)Linker-Error
A啊彯攊Ṅ×ịß_(1) pronounced "Aappley nib 1" so it follows AAAAAAAAAAAAAAaaaaaaaaaEEEEEEEaaaaaaaaaaaa Miui (talk) 19:40, 11 September 2026 (UTC)
Ａｅｓｔｈｅｔｉｃｓ is a joke language is not a joke. リサフランク420 / 現代のコンピュー!
AETRF is an esolang that refuses files.
Alertbox can do alert boxes.
Anti-Machine language, an esolang that cannot run on machines.
- Machine-language, an esolang that must be run on a machine.
Anti-myself language is a language that is made only to against its author(User:PrySigneToFry).
Anti-Plushie language is a language that is made only to be plushie incomplete.
Aperture A language inspired by how AI designers in Portal attached personalities to a central agent
APLBAONWSJAS is a simple program designed to create interpreters
APLWSI is a programming language with the smallest interpreter in the world.
Arch is the best! Arch is the best!
Assemblei You thought assembly was hard? Introducing Assemblei cause why not?
B#
Babbage is a language almost entirely unlike Ada.
Baby Language does something random; you run it repeatedly until it does what you want.
Base64 Text, a Base64 variant of Text
Basilisk is the only language which will summon a literal snake.
Baz
Beecode But every "bee" prints out the first sentence of the bee movie script.
Beer is an esolang inspired by the lyrics of 99 bottles of beer.
BeeScript
Belbolesi
Bgt, made in 2 minutes 22 seconds.
Bitxtreme can only address two bits of memory.
Blah does not even make sense.
Bonar-- basicaly python but boner.
Boner++ is based on a dialect of shitposting found on a Discord server.
Boobeans A normal language but the booleans betray you.
BOREDOM, not enough code try again.
Boyfriend.xml
Braces, where the only valid command is braces.
Brainfuck⁰ is a very stupid downside of brainfuck²
brainfucking is a no-code esolang that always interprets brainfuck.
brainless
Brainthon
Brainword
Bruhfunk
C@, made in 3 minutes 36 seconds
C-4, wherein the program and interpreter deletes itself after any program is ran in it - much like C-4 in real life, except less destructive.
C40, C with 40 bytes per function limitation.
Cactusi, cacti are lit.
Cheese++ is based on cheese. It is a Cheese+ derivative.
C-Hex is based on EarthBound CCS control codes.
Common is an esoteric programming language in which every part of the program must be written as a comment.
Compute can solve any problem and process any kind of data.
Construction Zone Zonotope-based Turing-tarpit. Parody of The Office.
CPL allows nearly all types of comment syntaxes, but nothing else.
CRalphabet takes varying numbers of '\n' as commands.
Crazy uses reverse alphabet integers to print lines of code. Everything is reversed.
CurSorn2 works in somewhat undefined and random ways.
Cut counts by the instruction number.
D-, if you think Deadfish was minimal enough, this language is even more minimal.
D♭♭
Danica A very complicated Input system with a very easy output system!
Deadfib uses Deadfish commands, but has nothing to do with Deadfish.
Deadfish is a very odd language, that has an output stream but not an input one.
Deadfish~ is a super-set of Deadfish, only it does not have any standard shell.
Deadfish x is a superset of the XKCD variant of Deadfish.
DeadPig is a version of Pig where the pig has died.
Deadplushie is a Plushie-Complete esolang
Deadsnail, an esolang made simply for annoying its users!
Deadsocket can open sockets, but not closing them.
Defined behavior is the opposite of Undefined behavior (language).
DeleteScript, a very funny esolang. Any program in this esolang deletes itself
Dig straight down like an idiot | Dig but it’s Minecraft logic style.
Dimensional: infinite dimensions, inside infinite dimensions.
doEverything(); can do anything and everything, including everything.
Dot's
Doug
DUCK is a language where any program does stuff according to the interpreter.
Dumpster Fire is a language where you can make a dumpster fire.
Durge is a language that only outputs "DURGE".
DWIM (Do-What-I-Mean) is a single-instruction esolang that does the right thing.
E++ is a language where everything is E, or A.
eafh is Deadfish without the commands i, d, and s.
EA Script, It's in the code.
efghij is programming with real-life objects like cutlery, rubber bands, etc.
ELBOG is a language of trial and error.
Eliminate is the only esolang that can eliminate its current user.
Endfield
Esketit is a programming language designed to look like Lil Pump’s song "Esketit"
Esme
EsoFur
Esolang.org Esolang Oh created by EsolangUser1234567 (talk) 19:48, 13 September 2026 (UTC) not Esolang.org.
Esolangs executes programs in any esoteric language, given they are categorized as Implemented.
Eternity can do anything, but needs infinite time to decode and launch.
Euler can do nothing but compute the transcendental number e.
Evalsfuck is a standardised language that will never be standardised.
Fb is an unusable derivative of BF.
Feedfish is a Deadfish derivative that simulates feeding a fish.
Feta has only one instruction, which prints a message
Fetlang is designed such that source code looks like poorly written fetish erotica.
FFS its like Brainfuck, but you can sort of read the code.
fh is Deadfish without commands.
FISHQ9+ is a superset of Deadfish, extended by HQ9+
FixxBuxx
Fizzbuzz can only do FizzBuzz, but you get to name the esolang to whatever you want!
Flash shockwave has been discontinued. Get over it.
Fool (Maxsteele2)
Fork is brainfork but it can only fork.
Fucker is like Fuck you! but fucks the programmer instead of the user.
Fuckgoid is the fungoid with the smallest interpreter (3 bytes).
Fuck you!, designed just to fuck its user!
Functional deadfish has functions, but is still confusing.
Functional deadfish~ is a combination of Deadfish~ and Functional deadfish.
FunctionsFTW is a language where you should use functions for everything.
FurASM is an over-engineered furry-based assembly language inspired by the language right above it in the list.
Furcode is a furry-based Programming language that just sucks...
Gift gives you coal if you ask for something that is too expensive
Golf Cheat
GolfJoke
GolfText can print repetitive text with shorter code.
GreeeeeeeeenText A language where all code is in 4chan greentext meme format.
HAHAHA
Happy Ghast, variant of Toad (Pit Crew) with also cat, rideable Happy Ghasts and 16 colors!
Hate is a Love derivative.
Hell69, a language that's a pain to code in.
Hello,world! can only do Hello, world!, but you get to name the esolang to whatever you want!
Hipster is a language you already know about if you're anyone worth knowing
History is based on an esoteric data structure with the same name, created just for fun.
How to learn this language is a language whose name is infinity long.
H+Q9 is very useless.
HQ9funge - the language that was designed to make the programmer's life worse.
Hq(- that doesn't even do anything useful.
hsifdaeD is an esolang made to implement Deadfish.
huh? doesn't understand what you want it to do.
huh?++ takes misunderstanding to the next level.
I am sure this is the shortest code for 99 bottles of beer
IANAL, the language of legal contracts.
IBC Never to be programmed in, ever
IBM 140huh is IBM 1401 machine code, except with a small adjustment that makes it (as far as I know) unusable.
I cannot understand that.
- Quineless I cannot understand that.
if(j)invert()if(l)change()if(q)input()if(t)output(x);
Ifthen is an uncomputable esolang.
If the question specifies that the number of the words should be less than 3, and the number of words in your answer is larger than 3, your answer is automatically wrong. If the question specifies that the number of the words should be less than 3, and the number of words in your answer is larger than 3, your answer is automatically wrong.
Increment can increment accumulators
Infinite loop (esolang) can do an infinite loop.
Initialization can only initialize its variables
Intercal Possibly the least intuitive language ever - created as a joke at Princeton in '72, it now has compilers on most platforms.
Interpret Esolangs, an esolang that can do nothing but interpret a limited range of esolangs.
InterpretMe Which has no use other than a self-interpreter
IRP depends on the civility, knowledge, and presence of fellow IRP programmers.
is not recognized as the name of a cmdlet, function, script file, or operable program. Check the spelling of the name, or if a path was included, verify that the path is correct and try again. is a A very long language name that is very weird and yeah, this is your but its this derivative with a long name.
ItOi Input to Output instantly by Grs (talk)
ΙΧΘΥΣ PRIME Accumulator language based on the Ix set fractal.
JarJarScript A language where all code is in Jar Jar Binks' grammer.
Jeeves is a language based on the way a stereotypical English butler would talk.
Joe is a language that consists of infinite recursion of Joe, a meaningless program.
Joke Page is an esolang made to be pointless.
Kate do you like that name?
KeyF outputs by typing in a keyboard, but it has some restrictions which prevents the esolang from being too boring.
Keys Insert keys.
KYS brainfuck but even shittier :)
Laughing my ⁫ off (there's an invisible character in the esolang's name lmao).
Letlang, just numbers, also numlang was taken :P
lezy is lazy
li1I is a language where the only valid characters are l, i, 1, I and whitespace.
LifeScript is a family of, sadly unimplemented, languages to describe real-life activity in a text document.
Line Feed is made of only newlines
LinuxLang is a language inspired by script kiddies
Livefish is a language that has no output compared to Deadfish.
literally every golflang ever is a language that mocks golflangs.
LMBC, a language created by Cortex, is a language made by Cortex that Cortex created.
Losescript is a golfing language that makes you lose golfing contests.
Loss
Magritte has only one legal program, which claims not to be one.
Malloc is an esolang which can only allocate memory
MaybeNumericBatch Similar To Numeric Batch In Every way shape and Form except It only sometimes works :D
Merthese produces correct output only when the random seed is right.
Microwave only uses tokens that imitate the humming and beeping sounds of a microwave.
Middle Manager uses corporate jargon to transpile native C code.
Minimum is like Unlambda, but with no primitive combinators.
MISATOeso
Miser, simulates a person that doesn't want to give others money.
Moanfuck
Morse-Assembly-Language is a programming language where Assembly code is written entirely in Morse code
mugh brains has ZOMBIES!!
Multiline has multiple lines, trust me
Multiply can only multiply values with a limited set of numbers.
Multiprocessing, a language that might crash your computer!
Ndef++ You have to be in the know.
Nil translates anything into a NO-OP.
NNVText considers an empty program the only invalid program.
No. Denies any legal argument you try to parse
No.js is JS but console.log prints No..
None (None1) is yet another nihilistic esolang.
Nope. The program thinks your argument is invalid.
- 脑̶子̶爆̶掉̶, the exact same thing.
No.pe. is a combination of Nope. and No.
Nope. without a quine is Nope. but you can't write a quine.
NopLWSI is a joke esolang that has no quine.
NoSubject, a pseudonatural language without subjects.
NOT A PROGRAM is a program that apparently used to exist, but it actually doesn't.
- Not to be confused with ThisIsNotARealLanguage.
Not finite Ioop
Not finite loop
Nulla
Nullary accepts no parameters or input from the user and uses the current time as the basis for what it does
Number is written only in number.
Numlist uses lists of numbers as programs.
O\I simulates non-interactive I/O.
olleH is the opposite of Hello.
OneLine is in one line
OREO you can cook cookies.
or You can only push false here
or++ You can push false and true here
or+3 You can push false and true and otput them here
Osaka-Lang programming language made for Osaka from Azumanga Daioh.
Paranoid Programming Language (some kind of joke, for sure.)
Parking lot is an esolang that has no use except printing text.
PaidFuck is an esolang that is so expensive that no one can afford it.
Parrot was a supposed collaboration between the authors of Perl and Python that was announced as an April Fools' Day prank. It later became a virtual machine intended for use with dynamic programming languages.
Pastebin, Text but with Pastebin paste links!
Penis the penis game as a binary sequence
Pește mort: Deadfish, dar în limba română!
Pește mort+: Pește mort, dar progres!
Pewlang
Pig is a language with only one keyword, which is its title.
PIO doesn’t want you peeing on the floor. It’s disgusting, so don’t do it.
Plus is a joke language that uses only the tokens + and EOF.
Poinal weird programming language i created because i was bored asf
Poop
PP_TIBSA has a suicidal interpreter and only one valid program.
Prints the interpreter of this language prints the interpreter of this language.
Project Euler can only solve the Project Euler problems.
Psychopaths is a language that only uses a print function.
PUBERTY is supposed to resemble a masturbation procedure.
PUPPY is the language that only puppies can understand.
PURRTRAN is a language for people who wish they had a cat to help them code.
QKAS is a language similar to the QWERTY Keyboard Dot Language.
Quiler is a language in which all programs are Quiler compilers
Quine is a language where everything is a quine.
Quine-Lang is a Language that's only Quine
QuinePig, a variant of the language Pig where every program is a quine
QWERTY Keyboard Dot Language is a programming language that does everything you want, but forces you to write in dots.
Qwote, a language that quotes a quote.
Randwork is a language that does something each statement.
Ratt
Ratt+
Super Ratt Bros
Super Ratt 64
ReadArticle is capable of doing anything that is mentioned in this wiki.
Recipescript is a language that produces an edible output, if you're not bad.
Recursive is recursive.
RELATIONS is very romantic and useless language
Remove Line Numbers is an esolang which removes the line numbers in the source code and prints it, see also its twin language Preserve Line Numbers, which is much less powerful.
Reverse, a language that can reverse its control flow.
Rickroll - an esolang that will never give you up
Robolang is a language made specifically for robots! Now you can communicate using Beeps and Boops!
Rockstar "to really confuse recruiters, someone should make a programming language called Rockstar."
Sacred is a language that is constituted only of the parenthesis characters and the space. Nonetheless, it *is* Turing complete.
SANTA SANTA! IS THAT YOU?!?!, by User:Earthrulerr
Say can only do input, output and control flow.
Seed is a language based on random seeds.
SHAat Secure hash algorithm atomita
SHA256 why not mine bitcoin?
Shameful is a very shameful language.
Shatner is a language that cack-handedly processes inputs based on some example inputs and outputs.
Shishkirism feel this religion
ShitLang the best worst programming language
SiacB aka siacB-v2 is a horribly made esolang, with no value.
SickPig, a version of the language Pig that is sick.
SimpIe progranning Ianguage is a language that should not be your first
Sixtyfeetunderassembly, a completely useless esolang
Siyu is the Chinese Pinyin version of Deadfish.
Skibidi Toilet, A language that is based on Gen Alpha slang
SlowLang, a Python-like language that punishes typing above 30 WPM with turtle rage and haiku errors.
small - language with the goal of having large and hard to read sourcecode.
Smalllang - made User:Hanzlu capitulate
SolboScript
SpaghettiScript, A language designed to look like spaghetti.
Steve's Lava Chicken Language, a language based on Steve's Lava Chicken song.
Stub This article is not detailed enough and needs to be expanded. Please help us by adding some more information.
Subjective-C - A language with the goal of being absolutely abhorrent.
Super-Easy-Lang is super easy
SussyLang, Sus ඞ 🥵️
T a b - language with the goal of having even larger and harder to read sourcecode than small
TAMalbolge
Tare
Text
- txeT
TF
The bluetooth device is ready to pair
The Bluetooth Device Is Ready To Pair, variant of The bluetooth device is ready to pair, but there's something funny in there.
The Chances of Anything Coming from Mars (are a million to one), just like the chances of this to output the first paragraph of The War of the Worlds
The Language That Explodes is very easy to run, but impossible to write.
This esoteric programming language has one of the longest titles, and yet it only has one command, which is such a shame, but there is no way to undo it so we may as well stick with it
THIS PROGRAMMING LANGUAGE IS LITERALLY ALL NUMBERS This is 1231 but with numbers replacing text>;)
Tjʊrɪŋ məʃin, whose name is written the way it's pronounced
Toad (Pit Crew) is a language with only one keyword, which is its title, also 6 other colorful Toad (Pit Crews). Also it has quine.
Totrandom which is totally random.
TP A language where you use toilet paper for calculations.
Trans-dimensional is a neat language where you can create dimensions to put your useless data in and take them out if really really needed.
Treee uses just ( and ) but is stronger than Turing machine so no complete interpreter exists
TroJavaScript This is just JavaScript, right? That's not what I wanted my program to do!
Tttt really can’t do anything. Well, you will see.
TUBSOIL
TURKEY BOMB.
TW'sLE!!! in which every single program instantly raise an error about 470000 lines long, the world's longest error.
Tweet is a social networking programming language.
UCL is an uncomputable constant language.
UClang*
Uhurx is especially good at causing undefined behavior.
Ummm... Tries to output, but forgets what it's doing.
UnaryBrain is BF but completely unusable.
Un-Js JS, But upside-down backwards.
Undefined behavior (language) does what is says on the tin
Unnecessary requires the non-existence of the program file to work.
User:Marina
UserNo
User talk:Language makes fun of this wiki's user talks.
Und grau mann is simply just a single illogical German sentence manipulated into one esolang.
Vaffanculo! Se non vuoi morire, non usare questo maledetto linguaggio di programmazione.
Vague does something.
Vaguest is something...
VirtualGameCard
W
WaifuScript is a language whose creator made to troll their CS teacher.
Welcome to Esolang, the esoteric programming languages wiki!
WhatInTheWorld
while true {cat}
Whole is a letter based variant of 🕳️
WHY was developed to prove to somebody that compiled doesn't mean fast.
Wishmaster is a language in which could make one's wishes true. Its interpreter is pure coincidence and its executed by cosmic-scale fate.
Wizzcake every single "word" that can be written, performs a different action.
Wizzcake+ almost every single "word" that can be written, performs a different action. NOW TURING COMPLETE!
wolf A coding language written in wolf language
worstscript also known as sausage language, is interpreted in PHP and preferably run in a virtual machine. Has goto statements!
X
xkcd #1537
xkcd #3062
Your screams at any programmer who spells "You're"
Your Pillows are in fact joke languages! (The name looks hilarious.)
Zhouly++
Zull
Benedictum A Latin-themed esoteric programming language where source code reads as prayer
Quantumfish is when you take deadfish and make it quantum.

Horribly translated variants

Un-understandable variants of non-esolangs or esolangs. Includes translation chains (but not listed here).

Translated !English, horribly translated version of !English.
Translated !Romanian, horribly translated version of !Romanian.
Translated !한국어, horribly translated version of !한국어.
Translated 脑子爆掉, horribly translated version of 脑子爆掉.
Translated Aheui, horribly translated version of Aheui.
Translated Batch, horribly translated version of Batch.
Translated Befunge, horribly translated version of Befunge.
Translated Die Deutsche Programmiersprache, horribly translated version of Die Deutsche Programmiersprache.
Translated dongbei, horribly translated version of dongbei.
Translated Drive-In Window, horribly translated version of Drive-In Window.
Horribly Translated BASIC, horribly translated version of BASIC.
Translated C++, horribly translated version of C++.
Translated Common Lisp, horribly translated version of Common Lisp.
Translated CreativeASM, horribly translated version of CreativeASM.
Translated C#, horribly translated version of C#.
Translated Drive-In Window, horribly translated version of Drive-In Window
Translated FLOLCODE, horribly translated version of FLOLCODE.
Translated Himalaya, horribly translated version of Himalaya.
Translated Human Words, horribly translated version of Human Words.
Translated HZFunge, horribly translated version of HZfunge.
Translated JS, horribly translated version of JavaScript.
Translated JNTM, horribly translated version of Chicken you too beautiful.
Translated Julia, horribly translated version of Julia.
Translated LOLCODE, horribly translated version of LOLCODE
Translated Mendeleev, horribly translated version of Mendeleev.
Translated NeverGonna, horribly translated version of NeverGonna.
Translated ORK, horribly translated version of ORK.
Translated PIX, horribly translated version of PIX.
Translated Poetic, horribly translated version of Poetic.
Translated Poetic Mihai, horribly translated version of Poetic.
Translated Python, horribly translated version of Python.
Translated Shakespeare, horribly translated version of Shakespeare.
Translated SLet, horribly translated version of SLet.
Translated SLet/3, horribly translated version of SLet (Old 3).
Translated SRL++, horribly translated version of SRL++.
Translated ORK, horribly translated version of ORK.
Translated Tri, horribly translated version of Tri.
Translated VBS, horribly translated version of VBS.
Translated Wenyan, horribly translated version of Wenyan.
Translated ZhongWen, horribly translated version of ！中文.

Error simulators

'xxx' is not recognized as an internal or external command, operable program or batch file. denies all commands and prints an error message for each command.
Bad command or file name, MS-DOS variant of 'xxx' is not recognized as an internal or external command, operable program or batch file.
bash: foo: No such file or directory
Definitely unusable is only usable because of bad error handling code.
Division, a language that always has an excuse to raise an error.
- Division+, a less stupid version of Division that does not count as an error simulator.
Error, a language in which all programs result in an error and the program and the interpreter are deleted.
ErrorFull, a language in which all programs result in an error.
ErrorFullC++ is ErrorFull, but to C++.
ErrorFull中文
ErrorLang raises an error with an unusual error message.
Filename "xxx" doesn't seem to be a valid filename. Please check if the filename your trying to execute is written correctly
foo : The term 'foo' is not recognized as the name of a cmdlet, function, script file, or operable program. Check the spelling of the name, or if a path was included, verify that the path is correct and try again. is an esolang that imitates a common Powershell error.
Permission denied, is a language that no one can use, because they have no permission.
Segmentation fault always returns a segfault.
SyntaxError: invalid syntax treats all commands as valid/invalid.
- NameError, slimiar to above.
  - NameError without a quine
    - NameError without a quine with a quine
      - NameError without a quine with a quine without a quine
        NameError without a quine with a quine without a quine with a quine
        NameError without a quine with a quine without a quine with a quine without a quine
        NameError without a quine with a quine without a quine with a quine without a quine with an iterating quine
- IndentationError: unexpected indent, similar to above.
- ZeroDivisionError: Division by 0, similar to above.
- SyntaxError: not a chance, where you have no chance to do anything.
Unmatched [ raises an error for any program.
Windows找不到文件“Windows找不到文件“啊”。请确认文件名正确后再试一次。”。请确认文件名正确后再试一次。

Brainfuck derivatives

程式設計idioma is brainfuck, but languages
̶b̶r̶a̶i̶n̶f̶uck made in 7 minutes
ℵ0 (Aleph-Naught/Aleph-Zero/Aleph-Null/N0/NO/ℵO), a brainfuck derivative that literally distorts your code and glitches it.
AHHH: BF except it's screaming into the void.
and then is like BF, but with and thens!
ASCII art
ASCII art-
b is half of bf.
Babylang, code like a baby.
Bitcoin only increment or decrement the current pointer by the price of Bitcoin.
BitZ
Blub
Brain:D, Who needs Brainfuck when you have Brain:D?
BrainEmoji - brainfuck but with pretty emojis like 👍 for + and 👈 for <
Brainfuck, but every + is replaced with the bee movie script
Brainfuck: Free Version: Turing completeness is a premium feature.
BrainGuck
BrainMultiple is brainfuck but with an unreasonable restriction.
Bruh@ - language of disappointment and at sign
BurgerFlipper
ChangeFuck is brainfuck but with side effects.
CLAG, where every command looks identical, but is technically different
Colonoscopy
COW
CubeCode
Developers
DirectBrainFUCK is like plain BF, but you can't do arithmetic!
Dumb self-modifying language is a very dumb BF based self-modifying esolang.
Ellipsis
Emoticode is Brainfuck with some nicer syntax (plus a few additions) and Emoticons instead of the typical symbols.
ErrorFuck is ErrorFull but to BF.
F*ckf*ck
f is half of bf.
FoolFuck is a very dangerous esolang that can badly damage the user's computer if not used properly.
Fuckscript, a programming language developed for creating self-driving cars.
Hello Fuck! is basically bitwise BF but uses Hello and World instead of bits.
Hq9eFuck, which is extended by HQ9+ and something else.
HuffPuff, wanna puff?
Jp32, brainfuck but its the average User:Juanp32 chat message
KonamiCode, brainfuck but simple
LogicF---, brainfuck has too much logic!
MalTape, which makes programs look like quick messages.
Matisse
Matrixfuck, brainfuck but 2D
MGIFOS
MindReadingFuck
MiniStringFuck
Morsefuck
Nameless language, which looks like binary.
Newbiefuck is the language 73%^{[citation needed]} of newbies implement somewhere in the process of implementing brainfuck.
Not a brainfuck derivative
Oof
Ook!
ParrBF
Pikalang
POGAACK
Pure BF, which explains away all side effects, making it pure.
Rebellent Brainfuck is brainfuck, but doesn't always obey what you want it to do.
Reciprocal Lenguage
Redundant is brainfuck but you have to add the first 5000 digits of pi before each command.
ReverseFuck
Revolution 9
SCREAMCODE reflects the anguish you'll feel while programming in it.
SeedFuck is brainfuck but randomly generated.
- SeedFuck Improved, name self-explanatory.
Self-modifying BrianPh*ck
Semordnilap
shut up
Solbofuck
sus
This is not a brainfuck derivative
Time is BF, but its behavior only depends on how many times you've run it.
Tol is a joke language, unlike its cousin �BRING BACK THE OLD SANDBOX
Triplet, which uses binary triplets to encode instructions.
UltimateBinary
Unary, which uses the unary number system as source code.
Unrandom, which generates brainfuck code from a seed
VerboseFuck, which makes Brainfuck verbose.
XD is uncomputable, yet Turing complete. XD
XMLfuck
YABFD, Yet Another BrainFuck Derivative which adds If blocks and memory pointers to brainfuck
Zeroflake only supports the number 0 in the tape.
Zoophilia, which uses machine learning to compile pictures of animals to brainfuck instructions

Example-based languages

i.e., languages which make it easy to write programs used as typical examples for new languages, but little else.

99 (Joke language)
™
Cat Program (language)
CHIQRSX9+
Disan Count (language)
DeltaHello
FHC
FISHQ9+
Fuckshitfuck
Hello
Hello++
Hello++++, which can do all basic stuff a programming language need.
Hello++++++++ Does anything you'd ever want.
Hello++++++++++++++++
Hello! Hello Again!
Hexlr7
HQ+
HQ9+
HQ9-
HQ9++
HQ9+~
H🌍+
H🌍++
Huby
KittyKittyMewMew
NH₃
Pgmpietoncracklang
Post-Unified HQ9+
pRINT
Prints the name of this language
TPLTSSPP
Unified HQ9+
W.W.E

Lesser known programming languages

arrowey, which is now considered a joke language by its creator User:Lampe2020 because it had inherent flaws that made it more of a pain to implement than use.
C-
COCAINE
DOGO
FIFTH
LAIDBACK
LITHP
RENE
SARTRE
SIMPLE
SLOBOL
VALGOL
EsoEnglish, your using it right now(but only english-speaker)

			N 09:15		User:Hakerh400/Test 4 changes history +273 [Hakerh400 (4×)]
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			N		08:43 (cur \| prev) +144 Hakerh400 talk contribs (Syntax highlighting test)

			N 09:05		User:Hakerh400/Test/Lean 9 changes history +921 [Hakerh400 (9×)]
					09:05 (cur \| prev) +600 Hakerh400 talk contribs Tag: Manual revert
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			N		08:40 (cur \| prev) +880 Hakerh400 talk contribs (A test template for syntax highlighting)

			08:48		Talk:Kern 82 2 changes history +581 [Dragoneater67; Blashyrkh]
					08:48 (cur \| prev) +294 Blashyrkh talk contribs (→Is the language esoteric?: new section)
					08:37 (cur \| prev) +287 Dragoneater67 talk contribs (→the alternate history section is offtopic and should be removed: new section)

			08:38		Kern 82 6 changes history +423 [Brian80053 (6×)]
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			m 07:52		B Flat 2 changes history +78 [Blashyrkh (2×)]
			m		07:52 (cur \| prev) +11 Blashyrkh talk contribs (→ℬm,n and its properties: missing subscript)
			m		07:46 (cur \| prev) +67 Blashyrkh talk contribs (→ℬm,n and its properties: Note about Ch_i)

User:Osmarks

11 November 2026

10 November 2026

Contents

General languages

Horribly translated variants

Error simulators

Brainfuck derivatives

Example-based languages

Lesser known programming languages

See also

Navigation menu

			06:21		Bowl 2 changes history +3 [Dragoneater67; ChuckEsoteric08]
					06:21 (cur \| prev) 0 ChuckEsoteric08 talk contribs (→Description)
			m		06:17 (cur \| prev) +3 Dragoneater67 talk contribs (→Description: Sorry! We could not process your edit due to a loss of session data. You might have been logged out. Please verify that you're still logged in and try again. If it still does not work, try logging out and logging back in, and check that your browser allows cookies from this site.)

			05:21		0x80070050 2 changes history +28 [Yayimhere2(school) (2×)]
					05:21 (cur \| prev) +96 Yayimhere2(school) talk contribs (→syntax)
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			02:40		Simpl (Cordership) 2 changes history +175 [Cordership (2×)]
					02:40 (cur \| prev) +149 Cordership talk contribs (→Finding errors)
					02:33 (cur \| prev) +26 Cordership talk contribs (→Finding errors)

			21:04		B Flat 2 changes history −15 [Blashyrkh (2×)]
					21:04 (cur \| prev) −14 Blashyrkh talk contribs (Rename "Theorem 1" -> "Theorem" and "Theorem 2" -> "Lemma" because the "Theorem" is formulated before the "Lemma" and proved later)
					18:28 (cur \| prev) −1 Blashyrkh talk contribs (→Empty Program: Shorter version (34 > 33))

			18:06		Lace 2 changes history +2 [Dragoneater67; Aadenboy]
					18:06 (cur \| prev) −2 Aadenboy talk contribs
					17:29 (cur \| prev) +4 Dragoneater67 talk contribs (dont use level 1 headers)

			18:05		Talk:Arbitrary memory emulation 2 changes history +1,241 [Aadenboy (2×)]
			m		18:05 (cur \| prev) 0 Aadenboy talk contribs (thanks mediawiki)
					18:05 (cur \| prev) +1,241 Aadenboy talk contribs

User:Osmarks

11 November 2026

10 November 2026

General languages

Horribly translated variants

Error simulators

Brainfuck derivatives

Example-based languages

Lesser known programming languages

See also

Navigation menu

Search