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string.isDevToys
Free

Free to use and open source under the AGPL-3.0 licence.

 Free

The open-source software is available without a license fee. Hosting, hardware and…

Web, Self-hosted Windows, macOS, Linux
  • Detects the input format and suggests output options
  • Sets no cookies and uses a strict Content Security Policy
  • Includes text conversion, formatters, encoders and validation tools.
  • Internet Explorer is not supported
  • Limited to the formats its converters cover
  • Its small utilities do not replace a full development environment.
Web application, Self-hosted Downloadable app
Open source Open source
License: AGPL-3.0 License: MIT
No account needed Not stated if an account is needed
Not stated if it works offline Not stated if it works offline

Checked October 2, 2026

Checked September 22, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.