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Astro Editor vs Clearance: catalog facts
Astro Editor	Clearance
Free Free downloads from the project's GitHub releases.	Free Free download from the project's GitHub Releases page.
Windows, macOS, Linux	macOS
Frontmatter shown as forms built from Zod schemas Focus and typewriter modes for prose	Native Swift app rather than a web wrapper Handles YAML frontmatter documents
Only useful for Astro content collections Linux build is in beta	macOS only for now; other platforms are planned Small, young project
Downloadable app	Downloadable app
Closed source	Closed source
License not stated	License not stated
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 1, 2026

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