Compile and Run C on Android — On-Device, No Setup

C is the language people assume you can't do on a phone — it needs a compiler, a toolchain, the whole desktop apparatus. PocketCode bundles a real on-device C compiler (TCC), so you can write a .c file, compile it, and run it right there, with nothing to set up.

A C compiler in your pocket

PocketCode ships TCC, a lightweight, fast C compiler, inside the app. Open a .c file, tap Run, and it compiles and executes on the device:

• Real compilation — not interpretation — so you see genuine compiler behavior, including errors and warnings.
• printf, standard headers, pointers, structs, the usual C you'd write while learning or prototyping.
• Output and exit codes stream into a proper console.
• One source file at a time: Run compiles the .c file you have open (TCC 0.9.27).

It all happens on the device and nothing leaves it. (You need a connection to sign in; opening the app with a session already started works offline; after that, compiling and running is local.) For a language famous for needing a build environment, "install the app and press Run" is a real shift.

What it's great for

• Learning C — the fastest possible loop from "write a snippet" to "see it run," anywhere, no laptop required.
• Algorithm and data-structure practice — pointers, arrays, recursion, all on the device.
• Small utilities and exercises — parse input, compute something, print a result.

The editor backs it up with C syntax highlighting, a built-in formatter and bracket matching (see the code editor guide), and a symbol bar so {, }, * and ; are one tap away instead of buried in the phone keyboard. There is no C language server: clangd is a native program, and Google Play doesn't allow apps to download native code.

The honest limits

• A lean compiler, tuned for speed and size. It's ideal for learning, exercises, and small programs — not the heavily-optimizing production toolchain you'd use for large native builds.
• Need C++ or a full toolchain? C++ does not run: the app lists a Clang-based C++ pack, but it can't be installed in this version — see the language lineup.
• Interpreter-free, but phone-scale. Compilation is on-device and fast for small programs; giant codebases aren't the target.

Within those lines, it's real C, compiled and run on the phone in your hand.

One of many

C is one of the languages bundled inside the app from first launch — alongside Python, JavaScript, TypeScript, Ruby, PHP, Java and Kotlin — with Lua, Go and Rhai as optional packs.

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A phone that compiles and runs C, on the device, with zero setup.

PocketCode is available on Google Play. Get PocketCode to try it on your own device.