RUM

RUM is a dialect of brainfuck written and maintained by User:irskep with a few features added for convenience. RUM stands for "bRainfUck iMproved." It is in the public domain and is available on Github.

Procedures
RUM supports pbrain-like procedures.

Repetitions
Precede commands with numbers to repeat them that many times. The following example sets the current cell to 32: [-]32+

Multiple procedure calls are supported with repetitions.

Strings
Strings in double quotes will be put into the standard input queue in front of any existing input and null-terminated.

Example: "Hello, world!",[.,]

Breakpoints
RUM's "debugger," RumBottle, supports stepping through a program through the use of breakpoints. Mark them with an exclamation point.

Debugger
RUM comes with RumBottle, a Python script that shows the tape and program position as the program is executed.

External resources

 * RUM on Github