Free Developer Tools That Run Entirely in Your Browser
QR codes, hashing, PDF tools and more — no sign-up, no uploads. Everything runs locally on your device, including a JSON formatter that stays fast on files with tens of thousands of lines.
QR Code Generator
Create QR codes from text or URLs instantly
QR Code Decoder
Decode QR codes from images
Base64 Encoder
Encode text to Base64 format
Base64 Decoder
Decode Base64 back to readable text
Hash Generator
Generate MD5, SHA1, SHA256 & SHA512 hashes
Bcrypt Hash Generator
NEWGenerate secure bcrypt password hashes in your browser
JWT Decoder
Decode and inspect JWT header and payload
JSON Formatter
Format, validate and beautify JSON — fast even on files with tens of thousands of lines
UUID Generator
Generate random UUID v4 and v7 identifiers
Timestamp Converter
Convert Unix timestamps to readable dates and back
URL Encoder
Encode and decode URLs with percent encoding
Regex Tester
Test and debug regular expressions online
YAML Formatter
Format, validate and convert YAML data
Color Converter
Convert colors between HEX, RGB, HSL and HSV
Base64 to ASCII
Decode Base64 strings into ASCII text
ICO Converter
NEWConvert PNG, JPG and WebP to real multi-size ICO icons
PDF Tools
NEWMerge, split, rotate, reorder, watermark and convert PDF files in your browser
Compress PDF
NEWReduce PDF file size losslessly, right in your browser
Why UtilForge?
Most online tools make you upload your data to somebody else's server, then wait and hope it isn't logged. UtilForge takes the opposite approach: every tool is a small, fast app that runs entirely in your browser. Your files and text never leave your device — and once a page has loaded, most tools keep working even if you go offline.
100% client-side, always
Your text, images and PDFs are processed on your device with Web Workers — never uploaded, never stored. Load a page once and most tools keep working offline.
A JSON formatter built for huge files
Parsing runs in a Web Worker and rendering is virtualized, so formatting a JSON file with tens of thousands of lines doesn't freeze the tab. Paste, format, scroll — smoothly.
A real PDF toolkit in the browser
Merge, split, rotate, watermark, number pages and compress — with smart per-image optimization that recompresses photos and downsamples oversized images while keeping text sharp.
Free, with no strings
No accounts, no quotas, no watermarks on your output, no premium tier. Open a tool and use it.
Built by the developer behind CodeHero Blog
Want to know how the internals actually work — memory, CPUs, parsers, transformers? UtilForge is built by an independent developer who also runs CodeHero — a technical blog and YouTube channel that explain how computers and AI really work.