About
Learn about the Tools Hub service and our operating principles.
Service Overview
Tools Hub offers everyday free online utilities such as image compression, PDF editing, QR code generation and discount calculation. 17 tools are currently available, with more added regularly.
Privacy Principles
All tools run in your browser, and files are never uploaded to any server. See our Privacy Policy for details.
Available Tools
We provide 17 tools across four categories: image, document, developer and utility.
Updates
August 11, 2026: Added discount, tax and unit converters; implemented tool search
Popular Tools
Image Compressor
Compress image files easily while keeping quality. Optimize for websites and social media.
Image Converter
Convert between PNG, JPG, WebP and GIF. Preserve transparency or optimize to WebP.
PDF Merge
Combine multiple PDF files into one. Reorder pages with simple drag and drop.
PDF Split
Split PDFs by page range, or extract specific pages into a new file.
JSON Formatter
Format, minify, validate and unescape JSON right in your browser.
QR Code Generator
Generate QR codes from URLs or text for free. Customize colors and sizes.