Compile and Run C++ on Android — On-Device, Offline After a Download

C++ needs a serious compiler, which is exactly why people assume it's off-limits on a phone. PocketCode offers a full C/C++ compiler pack built on Clang: download it once, and your .cpp files compile and run on the device, offline.

A full compiler pack, then offline

C++ arrives as an optional pack — a real Clang-based toolchain — that you install a single time. After that: open a .cpp file, tap Run, and it compiles and executes locally.

• The modern language you write — classes, templates, the STL, std::cout, RAII — compiles on the device.
• Real Clang diagnostics, warnings and errors, exactly as on a desktop.
• Once installed, it runs with no connection, and nothing leaves the device.

For quick, lightweight C specifically, there's also a bundled C compiler that needs no download at all — see compile and run C on Android.

What it's great for

• Learning C++ — templates, the STL, memory model, all on the go.
• Algorithm and competitive-programming practice — compile-and-run drills anywhere.
• Small programs and exercises — build a class, run it, iterate.

The editor adds Clang-grade highlighting, autocomplete and formatting and a symbol bar for C++'s punctuation.

The honest limits

• A one-time download. The full C/C++ pack is heavier than the bundled five; after it's installed, compilation is fully offline.
• Tuned for learning and small builds. Ideal for exercises and single-file programs — not a large multi-library native build system.
• Phone-scale compilation. Great for small programs; huge codebases belong on a desktop.

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

Part of the lineup

C++ is one of a dozen-plus languages PocketCode runs on-device — five bundled offline (Python, JavaScript, C, Ruby, PHP) plus packs like this one. See the full lineup.

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Add the pack once and your phone compiles C++, offline.

PocketCode is heading to Google Play. Join the pre-registration to try it on your own device.