About ToolSite

ToolSite is a collection of 51 free online tools built for developers, designers, and anyone who needs to get things done — fast, securely, and without uploading anything to a server.

Privacy by design

Every tool runs entirely in your browser. Your files, text, and data stay on your device. Nothing is uploaded, stored, or processed on a remote server. You can even use most tools offline once the page has loaded.

This means zero data collection, zero tracking, and zero privacy risk. We have no access to your inputs — because they never leave your machine.

How it works

ToolSite is built with Next.js and uses a combination of modern browser APIs, client-side JavaScript libraries, and optimized code to perform every operation locally. Encryption, hashing, compression, image processing, PDF handling, and code formatting all happen in your browser with no server round-trips.

What's included

The tool collection covers developer utilities (formatters, validators, hashing, encoding), image manipulation (compress, resize, convert, crop), document tools (PDF split/merge, text extraction), and data conversion (JSON, CSV, XML, TOML). Everything is free and always will be.