ImgMin – Image Compressor

Right-click to compress images, batch-compress entire pages, auto-suggest on upload, convert HEIC — 100% local.

ImgMin is the privacy-first image compressor that lives in your browser. Every image stays on your device — nothing is ever uploaded to a server. 🔒 PRIVACY BY DESIGN Unlike TinyPNG, Squoosh and most "online compressors", ImgMin runs 100% locally using the browser's Canvas API. You can verify this in DevTools → Network: zero outbound requests, even on a metered connection. ⚡ FOUR WAYS TO COMPRESS • Right-click any image on any webpage → "Compress with ImgMin" • Click the toolbar icon → drop or paste an image • "Compress all images on this page" → one-click full-page batch • Upload helper — when you're about to upload a 5 MB JPEG to Gmail/Notion/Slack, ImgMin offers to compress first 🎚️ THREE COMPRESSION MODES • Smallest (default) — ~75% reduction, no visible quality loss • Balanced — quality/size sweet spot • Best Quality — for archival, prints, portfolios 📐 SUPPORTS JPG · PNG · WebP · AVIF · HEIC (iPhone photos auto-convert to JPG) 🌍 6 LANGUAGES English · 简体中文 · 日本語 · Français · Deutsch · Español 🆓 100% FREE — NO ACCOUNT, NO TRACKING No sign-up, no usage limits, no telemetry. Open source verifiable. 🌐 ALSO ON THE WEB Same engine at https://imgmin.pro/ — bookmarkable for quick one-off jobs. Built for designers, developers, content creators, and anyone who's tired of uploading their photos to random "free" compression sites.