JS Shell

JS Shell is a portable terminal you can carry in your pocket. It bundles a real

Unix-like shell with a QuickJS-powered JavaScript REPL, a local HTTP server, and

a persistent SQLite-backed key-value store — all running entirely on your device,

with no cloud services and no account required.

KEY FEATURES

- Shell commands — ls, cat, rm, edit, run, paste, fetch, curl, extract, kv

- fetch — download a tarball or zip and unpack it under a sandboxed directory in

one step. Cached after first run; say "update" to re-download.

- extract — handles .tar / .tar.gz / .tgz / .gz / .zip with full path safety

- curl — full HTTP request tool: -X -H -d -i -I -o -A -m -v all supported

- Local HTTP server — preview your HTML / CSS / JS instantly via http://localhost

- Embedded WebView — open pages in-app with a single tap

JAVASCRIPT REPL

- Real QuickJS engine running on device

- CommonJS modules: write `module.exports = {...}` and `require('./mod.js')`

- fetch, setTimeout, setInterval all work

- :q to exit back to shell

PERSISTENT KEY-VALUE STORE

- Real SQLite B-tree on disk — O(log n) lookups, not "scan a JSON file"

- Same-origin REST API exposed at /_kv from your local pages

- PUT / GET / DELETE / LIST — works from JS fetch() in the WebView

VOICE INPUT

- Speak commands in 40+ languages — Mandarin, Japanese, Korean, Spanish, French,

German, Russian, Arabic, Hindi, Vietnamese and more all auto-translate to

shell commands

- Continuous listening with smart silence detection

QR CODE SCRIPTS

- Scan a QR code to install a script — scripts are sandboxed by origin so a QR

from one publisher cannot overwrite files from another

- Custom jsshell:// deep-link scheme for one-tap installs

- Built-in QR scanner with camera support

PRIVACY

- 100% local. No analytics. No ads. No tracking. No account.

- Your files live in the app's private storage and never leave your device.

- Network requests only happen when you explicitly run fetch / curl / open.

UI LANGUAGE

JS Shell automatically picks the UI language from your system settings:

English, 中文, 日本語, 한국어, Español, Français, Deutsch, Português, Русский.

PERMISSIONS WE USE

- Internet — only for fetch / curl URLs you provide

- Camera — only when you open the QR scanner

- Microphone — only when you tap the voice input button

- No location, no contacts, no storage outside the app sandbox

GREAT FOR

- Developers who want a pocket terminal for quick experiments

- JavaScript learners who want a fast REPL anywhere

- Power users running self-hosted scripts via QR distribution

- Web devs prototyping without setting up a laptop

Open source spirit, built with Flutter. Works offline, respects your data.