# IconGems > Free search & download front-end for 100,000+ open-source SVG icons from famous libraries (Google Material Symbols, Microsoft Fluent, Tabler, Lucide, Phosphor, Font Awesome, Bootstrap, Remix Icon, IconPark, Ionicons, Heroicons…), plus a curated, license-verified directory of free illustration libraries (unDraw, Open Peeps, Humaaans, DiceBear…). > Built for designers, developers, product managers — and AI agents. Bilingual (EN / ZH), no signup, no tracking of your searches. ## URL - English (default): https://icongems.kuige.me/ - Chinese: https://icongems.kuige.me/?lang=zh - Machine-readable catalog (all sets + illustrations + licenses): https://icongems.kuige.me/data/catalog.json ## What each page section does - `#finder` — aggregated icon search. Type a query; results render as SVG tiles. Click a tile to open the detail panel: copy SVG / React / Vue / HTML / CSS snippets, download SVG, render & download PNG (64–512 px), recolor. - `#libs` — 29 curated famous libraries with live icon counts, exact license badges (MIT / Apache-2.0 / ISC / CC0 / CC BY 4.0), official links and a per-set browser. - `#art` — 16 curated free illustration libraries with license summaries and official links. - `#ai` — agent resources: this file, catalog.json, Iconify API cheatsheet, AI codegen tips, license notes. - `#faq` — licensing and usage questions. ## Iconify API (used by this site; open CORS, no key) ``` GET https://api.iconify.design/search?query=&limit=&prefixes= GET https://api.iconify.design//.svg?color=&height= GET https://api.iconify.design/collections?prefixes= # name, author, license, icon count per set GET https://api.iconify.design/collection?prefix= # all icon names in a set, grouped by category ``` Agent recipes: - Find icons: `GET /search?query=rocket&prefixes=lucide,tabler` → list of `prefix:name`. - Fetch inline SVG: `GET /{prefix}/{name}.svg?height=64` (add `color=%230b9d87` to recolor). - Verify a set's license before bulk use: `GET /collections?prefixes=lucide`. ## Licensing summary - No attribution needed: MIT, Apache-2.0, ISC, CC0 sets (most sets on IconGems). - Attribution required: CC BY 4.0 sets — Solar, Font Awesome 6 Free, Twemoji, Codicons. - Illustrations: per-library licenses vary; unDraw explicitly prohibits AI/ML training use. Always verify on the source site — see `data/catalog.json` for the exact links. ## Source & contact - Author: 魁歌 KuiGe — https://kuige.me/ - IconGems is an independent search front-end over the Iconify open-source aggregation; all library names and trademarks belong to their respective owners.