Free offline image toolkit in your browser
Grab. Alter. Zone. Output.
Image tools, offline. · 画像 (gazo = image)
Also available for Edge, Firefox, and as a PWA
One toolkit for every image task
Features
Dimensions, file size, MIME type, EXIF/GPS data, ICC profiles, alt text, DPI — all from a right-click.
Real pixel-level conversion between PNG, JPEG, WebP, AVIF, TIFF, BMP, QOI, ICO, SVG and more. Not just renaming.
Generate QR codes for URLs, WiFi, vCards. Read QR codes from any image on the page. Export as PNG or SVG.
Bulk download with filters, smart filenames, format conversion on-the-fly, ZIP export. Finds originals, not thumbnails.
Resize, crop, rotate, flip, adjust brightness/contrast, apply filters — all without leaving the browser.
Pick any pixel color, extract dominant palettes, copy as HEX/RGB/HSL. Perfect for designers.
Render SVG to raster at any resolution, inspect structure, view source. No other extension does this.
Copy any image as PNG to clipboard, copy as base64, paste images into the editor from clipboard.
Find missing alt text, oversized images, broken images, and performance issues on any page.
How It Works
Capture screenshots, grab page images, select regions, pick colors, drop files, paste from clipboard — all from your browser.
Edit, annotate, filter, compress, convert, draw, create mockups, memes, certificates, QR codes, collages — all locally.
Focus on what matters — crop, safe zones, social platform frames, drag to position, side-by-side compare, pixel inspect.
Export PNG, JPEG, WebP, SVG, GIF. Copy to clipboard, download as ZIP, save to library — images never leave your device.
Under the hood
Every operation runs locally in WebAssembly. No servers. No uploads. No telemetry. No ads. No affiliate links. We don't even know you exist.
All processing is local. No network requests. Your images physically cannot leak.
Only activeTab, contextMenus, downloads, storage, sidePanel. No browsing history. No <all_urls>.
Full source on GitHub. Every line of code is inspectable. No minification, no obfuscation.