ImageConv - Local Image Format Converter

ImageConv — Convert and compress images without leaving your browser Right-click any image on any website and save it as PNG, JPG, WebP or AVIF. Every conversion happens on your own machine using the browser's built-in canvas engine, so your files are never uploaded anywhere. No accounts, no queues, no waiting for a server round trip — a typical image converts in well under a second. Need a smaller WebP for a blog post, a lossless PNG of a screenshot, or a next-generation AVIF for a fast-loading page? ImageConv handles all of it in two clicks. FREE FEATURES • Right-click any image and choose Save as or Copy as PNG, JPG, WebP or AVIF • Copy straight to the clipboard and paste into email, chat or documents • Adjustable export quality for JPG, WebP and AVIF; PNG is always lossless • Resize by percentage or exact pixel dimensions, keeping the aspect ratio • Size comparison for every conversion: original versus converted, with the percentage saved • Cross-origin images work — the extension fetches the original file even when a page blocks direct download • Smart link cleaning strips CDN tracking parameters so you get the real source image instead of a resized thumbnail • HEIC/HEIF support: convert iPhone photos locally, no third-party converter needed • Transparent PNGs exported to JPG get a clean white background instead of black • Animated sources are detected, with a note that only the first frame is kept • AVIF is produced by a built-in encoder; oversized images automatically fall back to WebP • Interface and context menu available in English, 中文, Español, Deutsch, 日本語 and Français PREMIUM FEATURES (license required) • Drag & drop — drop or paste local images into the popup to convert them instantly • Batch local conversion — convert multiple local files in a single run • Batch export a page — ImageConv lists every image already loaded on the page you are viewing, sorted largest first. Filter out icons and avatars (images under 100 px are hidden by default), tick the ones you want and export them all at once, up to 100 images per run. PRIVACY ImageConv is privacy-first by design: • All processing happens locally in your browser's memory — images are never uploaded • No analytics, no telemetry, no cookies, no access to your browsing history • Images exist in memory only while being converted, then are destroyed • The only outbound request the extension makes is license verification (your license key and a device fingerprint). It runs when you activate a license or when the cached 24-hour check expires — image data is never transmitted • Minimal permissions: contextMenus, downloads, offscreen, storage, scripting and clipboardWrite. Broad site access is used only to fetch the image you clicked and to scan a page when you request a batch export NOTES • This tool is for personal use. All images on web pages belong to their original copyright owners. Do not use converted images for commercial reproduction, unauthorized redistribution or secondary creation. • Please respect each website's terms of service — do not use the cross-origin fetch to harvest image resources in bulk. Official site: https://annmax1983.com/extensions/imageconv