Practice C programming, test an idea, or work on a small project from your phone or tablet. Cecoda brings a focused C code editor, a local workspace and an interactive console together, with no sign-in required.

CODE WITH FEWER TAPS
The built-in code keyboard puts letters, numbers, brackets and code symbols within reach. Use cursor keys, automatic indentation, paired brackets, undo and redo. C keyword completion keeps suggestions simple. You can also switch to your system keyboard.

KEEP YOUR PROJECT TOGETHER
Create .c source files and .h headers in a private multi-file workspace. Changes save automatically, and your last file and editing position are restored. Run the workspace as a C project or run the current source file. Import and export text files with Android's document picker.

RUN AND INTERACT
Read your program's actual output and enter input while it is running. The console supports Enter, end-of-input and Stop. Compiler diagnostics and execution status help you check what happened.

LOCAL C EXECUTION
On supported ARM64 devices, the bundled Clang/LLVM C compiler builds code locally and executes it through an in-memory runtime. Supported build commands cover separate compilation, static archives, linking and program arguments. Other supported architectures use the PicoC interpreter, with more language and library limitations.

The supported command set is designed for C projects. Cecoda does not provide a full desktop shell, C++ support or every desktop library and operating-system API. Arbitrary command-line tools and executable export are not supported. Source size, memory, run time and console output have limits.

MAKE IT COMFORTABLE
Code in portrait or landscape. Choose a light, dark or system theme and adjust the editor font size. The interface is available in English, Simplified Chinese, Traditional Chinese, Spanish and Japanese.

NO SIGN-IN REQUIRED
Editing and C execution work offline. The editor and console have no ads, and there is no developer-operated code upload service. Android system backup or device transfer may include your workspace and settings, depending on your device configuration. A document provider you choose for import or export may be a cloud service.

Open the included hello.c example, press Run, then make it your own.