About ToolHub

ToolHub is a collection of free online web tools accessible to everyone without registration or payment. We offer tools including image compression, PDF merge & split, JSON formatter, color palette generator, unit converter, finance calculator, and QR code generator.

Complete Privacy

Every tool on ToolHub processes data entirely in your browser — no server involved. Files you upload (images, PDFs) and data you enter never leave your device. Nothing is stored on our servers. When you close your browser tab, all processed data is gone.

Free to Use

All features on ToolHub are completely free, with no sign-up required and no usage limits. There are no watermarks on generated output. The service is sustained by advertising revenue; we do not charge users directly.

Available Tools

Image Compressor & Converter — Compress JPG, PNG, WebP images and convert between formats.
PDF Merge & Split — Combine multiple PDFs or extract specific pages.
JSON Formatter & Converter — Format, minify, validate JSON and convert to CSV or YAML.
Color Palette Generator — Generate harmonious color schemes in HEX, RGB, and HSL.
Unit Converter — Convert length, weight, temperature, area, and data units.
Finance Calculator Suite — Loan repayment, compound interest, currency, and BMI in one place.
QR Code Generator — Create QR codes for URLs, text, contacts, and Wi-Fi credentials.

Technology

ToolHub is built with Next.js 14 App Router as a fully static site. It uses TypeScript and Vanilla CSS, deployed on Render Static Site for fast, cold-start-free delivery.

Contact

For questions or suggestions, please visit our Contact page.