Documentation
Filemark documentation
Filemark turns Chrome into a real viewer for the files you actually read — Markdown, JSON, CSV, and database schemas — 100% in your browser, no uploads. These pages explain every feature and how it works.
New here? Start with Getting started. Otherwise jump straight to a feature:
Install, open your first file, and the two optional permissions that unlock local + remote rendering.
Markdown/MDX, JSON, CSV/TSV, and SQL/Prisma/DBML schemas — each with a real interactive renderer.
GFM plus the full interactive component grammar — callouts, tabs, charts, mermaid, math, and more.
Sidebar, folders, recents, web docs, tabs, full-text search, table of contents.
Markdown-native tasks with priorities and due dates, the cross-file task panel, and kanban boards.
Cache a doc as it changes and review only what an AI edited — with a side-by-side or reading diff.
Highlight text, attach an instruction, and copy every note as plain text to paste back to your AI.
Reading mode, light/dark/sepia, fonts, and content width — and how your preferences persist.
How file:// interception and remote URL rendering work, and the permissions each needs.
The options page: file formats, remote URLs, site rules, JSON viewer, shortcuts, and privacy.
Every shortcut, how to remap them, and why they work on any keyboard layout.
Blank viewers, permissions, sandboxed pages, and other gotchas — with fixes.
Need help?
- Found a bug or have a request? Open an issue on GitHub.
- Browse the source at github.com/thesatellite-ai/filemark.
- See what changed in each release on the changelog.