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Open-source AI job search agent and job finder: scan job boards, score each job 1-5 against your CV before you apply, tailor an ATS-friendly resume and cover letter, get interview prep and an application tracker. It helps you fill in each application; you press Submit. Runs locally in Codex, OpenCode and other AI CLIs, or as a Claude Code plugin.
A window.fetch JavaScript polyfill.
Standard Library
The Privacy First PDF Toolkit
History.js gracefully supports the HTML5 History/State APIs (pushState, replaceState, onPopState) in all browsers. Including continued support for data, titles, replaceState. Supports jQuery, MooTools and Prototype. For HTML5 browsers this means that you can modify the URL directly, without needing to use hashes anymore. For HTML4 browsers it will revert back to using the old onhashchange functionality.
A polyfill for ES6-style Promises
🐕 Bare minimum 500b fetch polyfill.
A Javascript library for working with native objects.
A JavaScript polyfill for Flexbox
Shim to insulate apps from spec changes and prefix differences. Latest adapter.js release:
jQuery contextMenu plugin & polyfill
A polyfill for the Resize Observer API
Client-side support for CSS custom properties (aka "CSS variables") in legacy and modern browsers
A JavaScript polyfill for the HTML5 placeholder attribute
ES2015 Object.assign() ponyfill
A cross-browser wrapper for the Web Audio API which aims to closely follow the standard.
requestAnimationFrame polyfill library
:love_letter: Compose responsive email templates easily, fill them with models, and send them out.
Polyfill for the AbortController DOM API and abortable fetch (stub that calls catch, doesn't actually abort request).
A grown-up polyfill for a grown-up flexbox.
Tiny library (<200B gzip) for deferring something by a "tick"
Symbol.observable ponyfill
ECMAScript 6 Symbol polyfill
ECMAScript spec-compliant polyfill/shim for `globalThis`.