Is Gamma free?
Yes, Gamma is free and open source with no account required. Every feature is in the free app; paid plans add a library that is always reachable on Gamma Cloud or a self-hosted server.
PDF tools
Gamma PDF
Read papers. Keep what you learn.
- Community votes0
- DR by Ahrefs0 no change since last check
Ahrefs Domain Rating set in type 14 Nov 2026, reset 14 Nov 2026.
An open-source, self-hosted PDF annotator with outliner notes for researchers to highlight papers, draw on them, keep notes with live math, ask an AI, and
The story so far
Gamma PDF is an open-source, self-hosted PDF annotation tool designed for researchers. It lets users highlight, draw, and annotate papers, with every mark automatically becoming a note. The app includes an outliner with live Markdown and LaTeX support, allowing users to take notes with mathematical formulas. Users can ask an AI about their papers with cited answers that link back to passages, using their own API keys or a paid ChatGPT plan. The tool works across Windows, macOS, Linux, iPad, and Android, with offline copies that sync automatically. It features full-library search, metadata and citation management with one-click BibTeX copying, collaborative shared workspaces with live cursors, and integrations with tools like Zotero, Obsidian, Logseq, and Notion. All data is stored locally in SQLite with no account required and no telemetry.
Typeset features
- Highlight, draw, and annotate on PDFs with every mark becoming a note
- Outliner with live Markdown and LaTeX for mathematical notation
- AI chat to ask questions about papers with cited answers
- Full-library search across notes, highlights, and all PDFs
- Shared workspaces with live cursors and comments for collaboration
- Works offline on iPad, Android, and desktop with automatic sync
- Integrations with Zotero, Obsidian, Logseq, and Notion
- Browser extension for one-click saving papers with metadata
Pricing
Pricing model: Freemium
Free: desktop app and self-hosted server. Lite: $2/month or $20/year. Plus: $5/month or $50/year. Pro: $20/month or $200/year.
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Gamma PDF metrics
| Metric | Value |
|---|---|
| Domain Rating | 0 no change since last check |
| Trust Flow | 0 no change since last check |
| Citation Flow | 9 no change since last check |
| Referring domains | 1 no change since last check |
| External backlinks | 49 no change since last check |
Ahrefs Domain Rating set in type 14 Nov 2026, reset 14 Nov 2026. Majestic set 14 Nov 2026, reset 14 Nov 2026. Link data typeset by Majestic. Trust Flow, Citation Flow and Topical Trust Flow are trademarks of Majestic-12 Ltd.
Gamma PDF domain colophon
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| Domain age | 1 month |
|---|---|
| Registered | |
| Expires | |
| Registrar | Cloudflare, Inc. |
| DNSSEC | Not signed |
Your launch, step by step
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Questions and answers
Which platforms does Gamma support?
Gamma runs on Windows, macOS, and Debian/Ubuntu on desktop, iPad through TestFlight, Android 10 or later on 64-bit ARM through the APK, and Docker on servers using amd64 or arm64 architecture.
What about handwriting and tablets?
You can draw with a stylus or mouse anywhere. On iPad, the Pencil writes with pressure in the TestFlight beta or when added to Home Screen from Safari, both working offline. On Android, the app natively captures S Pen, USI, or Wacom stylus and also works offline.
Can I cancel my Gamma Cloud plan?
Yes, you can cancel or change your plan at any time from your Gamma Cloud account. A cancelled plan runs to the end of the period you paid for, and a Lite or Plus library can be reopened later by subscribing again.
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