Third-Party Licenses
Folium bundles the following open-source components (direct
dependencies). Transitive dependencies are covered by the same license
families; full license texts ship with the packages in
node_modules/ and the Cargo registry.
Drawing canvas powered by Excalidraw (MIT). No trackers on this site either.
Rust (src-tauri)
| Crate | Version | License |
|---|---|---|
| base64 (Google Drive PKCE) | 0.22 | MIT OR Apache-2.0 |
| chrono | 0.4 | MIT OR Apache-2.0 |
| dirs | 6.0 | MIT OR Apache-2.0 |
| fern | 0.7 | MIT |
| form_urlencoded (license API form bodies, license.rs) | 1.2 | MIT OR Apache-2.0 |
| getrandom (Google Drive PKCE) | 0.3 | MIT OR Apache-2.0 |
| git2 | 0.21 | MIT OR Apache-2.0 |
| hmac (license.json integrity tag, license.rs) | 0.12 | MIT OR Apache-2.0 |
| keyring | 4.1 | MIT OR Apache-2.0 |
| log | 0.4 | MIT OR Apache-2.0 |
| notify | 8.2 | CC0-1.0 |
| objc (iOS-only iCloud bridge) | 0.2 | MIT |
| openssl-sys | 0.9 | MIT |
| regex | 1.13 | MIT OR Apache-2.0 |
| rusqlite | 0.32 | MIT |
| serde / serde_json / serde_yaml | 1.0 / 1.0 / 0.9 | MIT OR Apache-2.0 |
| sha2 (Google Drive PKCE; license.rs) | 0.10 | MIT OR Apache-2.0 |
| tauri / tauri-build / tauri-plugin-dialog / tauri-plugin-global-shortcut / tauri-plugin-notification / tauri-plugin-opener / tauri-plugin-updater | 2.x | Apache-2.0 OR MIT |
| tempfile | 3.x | MIT OR Apache-2.0 |
| thiserror | 1.x / 2.x | MIT OR Apache-2.0 |
| unicode-normalization | 0.1 | MIT OR Apache-2.0 |
| unicode-segmentation | 1.x | MIT OR Apache-2.0 |
| ureq | 2.x | MIT OR Apache-2.0 |
| zip | 2.x | MIT |
Bundled data
| Component | Source | License |
|---|---|---|
| Mozilla CA certificate bundle (used by git sync on Android) | curl.se/ca/cacert.pem | MPL-2.0 |
Landing page (landing/)
| Component | Version | License |
|---|---|---|
three.js (vendored in landing/vendor/) | 0.180 | MIT |
Caveat, Inter, Space Grotesk fonts (vendored in landing/fonts/, via Fontsource) | — | OFL-1.1 |
Frontend (npm)
| Package | Version | License |
|---|---|---|
| @excalidraw/excalidraw | 0.18 | MIT |
Inter, Space Grotesk fonts (vendored in assets/fonts/, via Fontsource) | — | OFL-1.1 |
Handlee font (vendored in assets/fonts/, via Fontsource) | — | OFL-1.1 |
| Noto Sans, Noto Sans Arabic, Noto Sans Bengali, Noto Sans SC | — | OFL-1.1 |
| @sveltejs/vite-plugin-svelte | 5.x | MIT |
| codemirror, @codemirror/lang-markdown, @codemirror/language, @codemirror/language-data, @lezer/highlight, @lezer/markdown (live-preview markdown editor) | 6.x | MIT |
| @tauri-apps/api, @tauri-apps/cli | 2.x | Apache-2.0 OR MIT |
| @tauri-apps/plugin-dialog | 2.x | MIT OR Apache-2.0 |
| @tauri-apps/plugin-notification | 2.x | MIT OR Apache-2.0 |
| @tauri-apps/plugin-updater | 2.x | MIT OR Apache-2.0 |
| dompurify | 3.x | MPL-2.0 OR Apache-2.0 |
DSEG font (vendored in assets/fonts/) | — | OFL-1.1 |
| highlight.js | 11.x | BSD-3-Clause |
| html-to-image | 1.x | MIT |
| marked | 18.x | MIT |
| perfect-freehand (freehand strokes on the whiteboard) | 1.x | MIT |
| react / react-dom | 18.x | MIT |
| svelte | 5.x | MIT |
| svelte-check | 4.x | MIT |
| tslib | 2.x | 0BSD |
| typescript | 5.x | Apache-2.0 |
| vite | 6.x | MIT |
Excalidraw bundled fonts
The @excalidraw/excalidraw runtime assets copied into
dist/excalidraw-assets/fonts/ include these fonts. The npm
package ships no separate license texts alongside the font files. Folium
includes font-specific notices in assets/fonts/licenses/.
This list reflects the bundled font versions.
| Font | License |
|---|---|
| Assistant | OFL-1.1 |
| Cascadia Code | OFL-1.1 |
| ComicShanns | MIT |
| Excalifont | OFL-1.1 |
| Liberation Sans 1.05 (Excalidraw 0.18) | GPL-2.0 with the Liberation font exceptions |
| Lilita One | OFL-1.1 |
| Nunito | OFL-1.1 |
| Virgil | OFL-1.1 |
| Xiaolai | OFL-1.1 |
Each component remains under its own license. The bundled Liberation Sans
1.05 has the legacy GPL font license;
the OFL license of newer Liberation versions does not apply to that file.
Copies of the MIT, Apache-2.0, BSD-3-Clause, MPL-2.0,
OFL-1.1, CC0-1.0, and 0BSD license texts are available at
opensource.org/licenses
and in the respective package archives. The OFL-1.1 texts ship next to
the vendored fonts in assets/fonts/OFL.txt,
assets/fonts/DSEG-LICENSE.txt, and
landing/fonts/OFL.txt.
Fonts in the editor
Folium uses Inter for editing and reading, under the SIL Open Font License (OFL 1.1). OFL permits use in commercial applications with the copyright and license notices retained. Read the official OFL FAQ. Code uses a monospace font already available on your device; Folium does not redistribute Apple or Microsoft system font files.
Website font copyright and OFL notices · Application font notices
Feather editor icons
Minimal editor SVG icons from Feather: bold, italic, code, terminal, align-left, and message-square. Adapted into the application’s shared icon component.
The MIT License (MIT) Copyright (c) 2013-2023 Cole Bemis Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.