About

Free Data Tools is a collection of lightweight utilities for working with CSV, JSON, and text. Everything runs client-side, so your data never leaves your device.

We focus on speed, clarity, and practical defaults. No sign-ups, no cookies, and a clean UI you can trust.

What you can do

Convert, format, and validate common data formats in seconds. Explore the full tools list, including:

• JSON formatter & validator
• CSV ↔ JSON converters
• Base64 & URL encode/decoder
• JWT decoder/encoder
• UUID generator & text casing utilities

How it works

• All conversions run in your browser (no server processing).
• Nothing you paste or upload is sent to our servers.
• Sample files are provided for quick testing.

Privacy & analytics

We use privacy-friendly Umami Analytics to understand aggregate usage. No cookies, no personal data. For details, see our Privacy Policy.

Roadmap & feedback

We’re actively adding more tools and refinements. Have a suggestion or found a bug? Contact us.

FAQ