Browser-native utilities.
Zero latency. Zero bloat.
Production-grade utility tools engineered for creators, designers, and developers. Compress PNGs losslessly, build contrast-checked palettes, format JSON, and transform text in real time.
Compressify — Batch Image Optimizer→
Bulk optimize PNG, WebP, JPG, AVIF, and SVG files. Features byte-exact target sizing, lossless DEFLATE scanline heuristics, and ZIP download.
Color Picker & Palette Generator→
Extract colors from images, convert between HEX, RGB, HSL, CMYK, test contrast accessibility, and preview full UI themes in real time.
All Utilities
Launch directly inside your browser. No signups, no API keys, no watermarks.
Color Picker & Palette Generator
A free online color picker for picking colors from your screen, images, or anywhere on your page. Convert HEX, RGB, HSL, and more, check contrast, and create color palettes with ease.
Client-Side Image Compressor
Compress PNG, JPG, and WEBP images instantly in your browser without sacrificing quality.
Compressify - Batch Image Optimizer
Bulk compress and resize PNG, JPG, WEBP, and AVIF images losslessly or to an exact target file size, right in your browser.
Text Case Converter & Counter
Transform text between UPPERCASE, lowercase, Title Case, camelCase, slug, and count words.
JSON Formatter & Validator
Prettify, minify, validate, and debug JSON data with syntax highlighting and instant error detection.
Engineered for Privacy and Speed
Everything runs directly on your hardware with modern WebAssembly and Canvas pipelines.
100% Client-Side Execution
Zero network upload delays. Sensitive images, API keys, JSON payloads, and text snippets never leave your browser's sandboxed environment.
DEFLATE & Perceptual Filtering
Advanced scanline heuristics and continuous perceptual smoothing eliminate color banding and dithering noise, delivering smooth compression curves.
Instant Bookmark Workflow
Press CTRL+D anytime to keep your favorite utilities one keystroke away.
Frequently Asked Questions
Everything you need to know about privacy and performance on BookmarkedTools.
Are my files, images, or data uploaded to an external server?
How does the lossless PNG and image compression engine work?
Can I use BookmarkedTools offline without an internet connection?
Is there any usage limit, paywall, or required subscription?
How do I sample colors on touchscreens and mobile devices?
Bookmark your favorite tools now.
Add BookmarkedTools to your browser bookmarks bar with CTRL+D for instant access anytime.