Run TypeScript on Android — On-Device, No Pack Needed

TypeScript is JavaScript with a type system — and that usually lives in a desktop toolchain. In PocketCode it needs no extra pack: TypeScript is bundled in the app and runs on the same Node.js that runs your JavaScript. Open a .ts file, tap Run, and it executes on the device.

It runs on the bundled Node

There is no separate TypeScript download. PocketCode runs your .ts files on the bundled Node.js runtime, which strips the type annotations and executes the code:

• The typed syntax you write — interfaces, generics, unions, type aliases — is accepted and runs.
• Output, errors and exit codes stream into a proper console.
• It all happens on the device and nothing leaves it. (The app needs a connection to sign in; opening the app with a session already started works offline; after that your code runs locally.)

What it's great for

• Learning TypeScript — practice the syntax anywhere.
• Scripting with types — small typed utilities and data transforms.
• Trying type-level ideas — write a generic or a conditional type and see the program run.

The editor adds a one-tap TypeScript language server (install it from the LSP item in the status bar) for completion and type errors as you write, plus a built-in formatter (see the code editor guide).

The honest limits

• Type stripping, not a full compile step. Types are removed before the code runs: there is no type checking and no tsc at run time. Once you install it, the editor's language server is what points out type mistakes. Only syntax that can simply be erased works: features that need a real compile pass, such as emitDecoratorMetadata or enum, are not supported.
• Node without npm. npm and npx are not bundled, so this is for your own scripts, not a framework build pulling packages from a registry. Native add-ons (.node files) don't load either.
• Phone-scale. Great for snippets and utilities; large projects belong on a desktop.

Within those lines, it's real TypeScript, running on your phone.

Part of the lineup

TypeScript is one of 16 languages and file types PocketCode runs on-device. Bundled in the app: JavaScript, C, Python, Ruby, PHP, Java and Kotlin; optional packs add Lua, Go and Rhai. See the full lineup.

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No pack, no setup: your phone runs TypeScript on a real Node.js.

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