Linwood Butterfly
The facts below are what the maker publishes about Linwood Butterfly, checked and dated. Our editors have not written about it yet.
Plans and prices
From Linwood Butterfly's own pricing page, checked 11 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Butterfly | Free | Free and open source under GNU AGPL-3.0 |
The facts
Each one read from Linwood Butterfly's own pages, with the date it was checked.
Where it runs
- Browser requirements
- The web app stores data in the browser and works offline, but its documentation says Firefox and Safari lack the required WebAssembly features.checked 11 Oct 2026
- Platforms
- The maker lists Android, Windows, macOS, Linux, and browser support; its iOS version is in preview and may not work as expected.checked 11 Oct 2026
- Supported platforms
- web,Windows,macOS,Linux,iOS,Androidchecked 20 Sep 2026
What it does
- Canvas tools
- It supports stylus, touch, and mouse input, with adjustable stroke width, color, smoothing, and texture.checked 11 Oct 2026
- Collaboration
- Real-time collaboration is an experimental feature that supports Swamp or a WebSocket server; the Swamp server acts as a proxy and cannot read end-to-end encrypted data.checked 11 Oct 2026
- Content
- Documents can combine notes with imported photos, PDFs, and SVGs, and content remains editable after placement.checked 11 Oct 2026
- Data handling
- The maker says documents remain on the device unless users choose another storage location, and its app privacy policy says requested personal information is retained on the device and not collected by the maker.checked 11 Oct 2026
- Export
- The documentation lists export formats including Butterfly files, images, SVG, PDF, and Xournal++ files.checked 11 Oct 2026
- File formats
- The maker documents Butterfly Note (.bfly) and Butterfly Raw Note (.tbfly) formats.checked 11 Oct 2026
- Integrations
- WebDAV,Nextcloudchecked 20 Sep 2026
- Note sharing
- Yeschecked 20 Sep 2026
- Offline access
- Yeschecked 20 Sep 2026
- Purpose
- Butterfly is a note-taking app for handwriting, sketching, annotating, and organizing work on an infinite canvas.checked 11 Oct 2026
- Real-time collaboration
- Yeschecked 20 Sep 2026
- Reusable assets
- Users can create templates and packs containing reusable content, stamps, palettes, and styles.checked 11 Oct 2026
- Self-hosting
- The maker provides instructions for building and hosting Butterfly’s web app, including a Docker image.checked 11 Oct 2026
- Storage integrations
- Notes can be stored locally or in WebDAV cloud storage, with the maker specifically mentioning Nextcloud for syncing and backup.checked 11 Oct 2026
- Support
- The downloads page links to a support page and a community FAQ.checked 11 Oct 2026
Money
- Free plan
- Yeschecked 20 Sep 2026
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