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
Resize, crop, rotate, flip, brightness, contrast, filters, sharpen, blur, annotate with shapes and text.
Batch format conversion — PNG, JPEG, WebP, AVIF, TIFF, BMP, QOI, ICO. Per-file settings and preview.
Reduce file size with quality control, side-by-side preview, target file size, format comparison.
Resize, filter, watermark multiple images at once. Rename patterns, pipeline presets, ZIP export.
Resize for Instagram, Twitter, YouTube, LinkedIn, TikTok. Visual safe zone guides, platform mockups.
Combine images into grid layouts with customizable spacing, borders, and backgrounds.
Blank canvas with shapes, text, arrows, freehand pen. Undo/redo, layers, grid overlay, export.
Generate QR for URLs, WiFi, vCards, email, phone. Read QR from images. Export PNG/SVG.
Dimensions, EXIF, GPS, ICC profile, DPI, hash, base64. Strip metadata with one click.
Eyedropper pixel picker, dominant palette extraction, copy as HEX/RGB/HSL.
Gradients, patterns, noise, placeholder images. Create backgrounds and test assets.
Screenshot mockups with device frames — browser, phone, tablet, desktop. Beautiful backgrounds.
Inspect SVG source, beautify, syntax highlight, element breakdown, color palette. Trace images to SVG.
Side-by-side pixel comparison with slider overlay. Spot differences instantly.
Top/bottom text with Impact font, custom fonts, templates. Quick meme creation.
Add text or logo watermark with opacity, tiling, diagonal placement, custom fonts.
Annotate with boxes, labels, arrows, numbered steps. Great for tutorials and documentation.
Combine images into animated GIFs with custom frame delay, loop control, and ordering.
Create certificates, diplomas, and badges with templates, borders, and custom text.
Generate app store icons at all required sizes and screenshot templates for Apple, Google, Chrome.
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.