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string.isDevUtils
Free

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

 Paid

Requires a paid licence; the app can be downloaded before buying.

Web, Self-hosted macOS
  • Detects the input format and suggests output options
  • Sets no cookies and uses a strict Content Security Policy
  • More than 47 tools in one app
  • Works offline, data stays local
  • Internet Explorer is not supported
  • Limited to the formats its converters cover
  • macOS only
  • Paid licence
Web application, Self-hosted Downloadable app
Open source Closed source
License: AGPL-3.0 License not stated
No account needed No account needed
Not stated if it works offline Works offline

Checked October 2, 2026

Checked October 1, 2026

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