Document

PDF to Markdown Markdown ↔ HTML HTML → Markdown

Media

Image Converter

Data

CSV ↔ JSON JSON ↔ YAML JSON ↔ TOML XML ↔ JSON JSON Formatter

Developer

JSON → TypeScript cURL → fetch Diff Viewer Regex Tester

Encode / Generate

Base64 JWT Decoder URL Encode Hash (MD5/SHA)UUID / NanoID Timestamp Color Converter QR Code Lorem Ipsum Password Generator

Text

Slugify Case Converter Cron Explainer Word Counter Markdown Table Line Sorter String Escape

Code

Number Base SQL Formatter Minifier URL Parser

Ready Offline

All processing happens in your browser. Files never leave your device.

CSV ↔ Excel (.xlsx)

Drop a .csv to convert to .xlsx, or a .xlsx to extract sheets as CSV.

Use Load file above.