estrel Tools

A collection of clean, fast, and privacy-focused online utility tools designed to make your daily tasks easier.

Featured Tools

Format and validate JSON with syntax highlighting

Combine multiple PDF files into one, client-side.

Resize and optimize images easily

Convert images to PDF documents

Decode and inspect JWT tokens safely client-side

Distraction-free interfaces with lightning-fast performance.

Client-side processing means your data never leaves your browser.

No annoying ads or tracking scripts. Just the tools you need.