Tools

Text Word Counter Count words, characters, sentences and estimate reading time. →

Crypto Hash & UUID Generate SHA-256/512, MD5 hashes and bulk UUIDv4 values. →

Security JWT Decoder Decode and verify JSON Web Tokens securely in your browser. →

Dev JSON Editor Validate, format, sort and convert JSON in real time. →

Text Text Diff Compare two texts side by side with synchronized scrolling. →

Design QR Code Designer Create customizable QR codes with gradients and logos. →

Image Image Converter Convert and compress HEIC, JPG, PNG and WebP images. →

PDF PDF Compressor Reduce PDF file size with adaptive DPI scaling. Works offline. →

Why browser-based tools?

Traditional web utilities send your files and data to remote servers for processing. Toolbox takes a fundamentally different approach: every computation happens inside your browser using modern APIs. Your PDFs, images, tokens and text never touch an external server.

The platform supports four languages — English, Turkish, German and Russian — with automatic browser language detection. Switching languages happens instantly without a page reload.

Frequently Asked Questions

Are my files uploaded to a server?▾

No. All processing happens entirely in your browser. Your files are never transmitted to any server.

Does Toolbox work offline?▾

Most tools work offline after the initial page load. Tools that require CDN libraries need a connection on first use, after which they are cached by the browser.

Which languages are supported?▾

English, Turkish (Türkçe), German (Deutsch) and Russian (Русский). The language is detected from your browser settings and can be changed instantly using the switcher in the navigation bar.