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The next-generation file converter. Open source, fully local and free forever.

The most advanced free and open-source browser fingerprinting library

Pyodide is a Python distribution for the browser and Node.js based on WebAssembly

js is a javascript SQL database. It allows you to create a relational database and query it entirely in the browser. You can try it in this online demo.

Many online file conversion tools are boring and insecure. ), and they require that you upload your files to some server.

A high-performance, 100% client-side tool for removing Gemini AI image & video watermarks. Built with pure JavaScript using mathematically precise Reverse Alpha Blending. / 基于 JavaScript 的纯浏览器端 Gemini AI 图像和视频无损去水印工具，使用数学精确的反向 Alpha 混合算法

AngularJS lets you write client-side web applications as if you had a smarter browser. ) as your template language and lets you extend HTML’s syntax to express your application’s components clearly and succinctly.

Riot brings custom components to all modern browsers. It is designed to offer you everything you wished the native web components API provided.

Cross-browser QRCode generator for javascript

dom-to-image is a library which can turn arbitrary DOM node into a vector (SVG) or raster (PNG or JPEG) image, written in JavaScript.

The jQuery Validation Plugin provides drop-in validation for your existing forms, while making all kinds of customizations to fit your application really easy.

Internally, every value is stored as an object rather than being written to the storage raw. That object carries the user value, an optional expiry, a version, and an internal us marker.