txiki.js — The tiny JavaScript runtime

Overview

txikia (basque): small, tiny.

txiki.js is a small and powerful JavaScript runtime. It's built on the shoulders of giants: it uses QuickJS as its JavaScript engine and libuv as the platform layer.

It was formerly named quv.

Features

Browser-like APIs

• Console API
• URL & URLSearchParams
• TextEncoder / TextDecoder APIs
• EventTarget / Event / CustomEvent
• XMLHttpRequest & fetch (including AbortController)
• Performance API
• Worker API
• Crypto API (just getRandomValues)
• WebAssembly (no tables, globals or memory support yet)

Custom features

• TCP and UDP sockets
• TTY handles
• Unix sockets / named pipes
• Timers
• Signals
• File operations
• Event loop
• High-resolution time
• Miscellaneous utility functions
• Worker threads
• Child processes
• DNS (getaddrinfo)
• WASI (no memory support yet)

See the full API.

Other extras:

• Import directly from HTTP(S) URLs
• Import JSON files
• path module
• uuid module
• hashlib module
• BigFloat and BigDecimal extensions

Supported platforms

• GNU/Linux
• macOS
• Windows (experimental)
• Other Unixes (please test!)

Building

CMake is necessary.

# Get the code
git clone --recursive https://github.com/saghul/txiki.js --shallow-submodules && cd txiki.js
# Compile it!
make
# Run the REPL
./build/tjs

NOTE: The txiki.js build depends on a number of git submodules (e.g. curl, libuv). If you didn't already clone this repository recursively, make sure you initialize these submodules with git submodule update --init before proceeding to the build.

Thanks

txiki.js stands on shoulders of giants. It wouldn't be what it is today without these libraries:

• QuickJS: JavaScript engine
• libuv: platform abstraction layer
• wasm3: WASM engine
• curl: HTTP client

In addition, txiki.js has these contributors to thank for their help.

Thank you all for making this project possible!