Arne ReiandMahiro Hirakawa 4c37956ba5 fix(editor): detect line height from the migrated font props on restore (#12033)
* fix(editor): detect line height from the migrated font props on restore

The text branch of `restoreElement` parses the legacy `font` prop into local
`fontSize` and `fontFamily`, but line-height detection kept reading
`element.fontSize` and `element.fontFamily`. A diagram old enough to carry
`font` has neither, so `detectLineHeight` divided by `undefined` and the
element was restored with `lineHeight: NaN`. A non-numeric `height` produced
the same result.

Move the detection into `restoreLineHeight`, pass it the already-migrated
values, and fall back to the font family's fixed line height when the
detected value isn't a usable number.

---------

Signed-off-by: Mark Tolmacs <mark@lazycat.hu>
Co-authored-by: Mahiro Hirakawa <mahirohirakawa@glovrex.com>
2026-10-14 18:29:25 +02:00
2024-08-06 13:21:20 +02:00
2020-04-03 19:19:01 +02:00
2024-09-09 17:12:07 +02:00
2020-09-15 21:59:00 +02:00
2025-05-25 21:23:40 +02:00
2023-05-18 16:06:27 +02:00
2025-05-25 21:23:40 +02:00
2020-01-05 13:09:29 -08:00

Excalidraw

Excalidraw Editor | Blog | Documentation | Excalidraw+

An open source virtual hand-drawn style whiteboard.
Collaborative and end-to-end encrypted.


Excalidraw is released under the MIT license. npm downloads/month PRs welcome! Chat on Discord Ask DeepWiki Follow Excalidraw on Twitter

Product showcase

Create beautiful hand-drawn like diagrams, wireframes, or whatever you like.

Features

The Excalidraw editor (npm package) supports:

  • 💯 Free & open-source.
  • 🎨 Infinite, canvas-based whiteboard.
  • ✍️ Hand-drawn like style.
  • 🌓 Dark mode.
  • 🏗️ Customizable.
  • 📷 Image support.
  • 😀 Shape libraries support.
  • 🌐 Localization (i18n) support.
  • 🖼️ Export to PNG, SVG & clipboard.
  • 💾 Open format - export drawings as an .excalidraw json file.
  • ⚒️ Wide range of tools - rectangle, circle, diamond, arrow, line, free-draw, eraser...
  • ➡️ Arrow-binding & labeled arrows.
  • 🔙 Undo / Redo.
  • 🔍 Zoom and panning support.

Excalidraw.com

The app hosted at excalidraw.com is a minimal showcase of what you can build with Excalidraw. Its source code is part of this repository as well, and the app features:

  • 📡 PWA support (works offline).
  • 🤼 Real-time collaboration.
  • 🔒 End-to-end encryption.
  • 💾 Local-first support (autosaves to the browser).
  • 🔗 Shareable links (export to a readonly link you can share with others).

We'll be adding these features as drop-in plugins for the npm package in the future.

Quick start

Note: following instructions are for installing the Excalidraw npm package when integrating Excalidraw into your own app. To run the repository locally for development, please refer to our Development Guide.

Use npm or yarn to install the package.

npm install react react-dom @excalidraw/excalidraw
# or
yarn add react react-dom @excalidraw/excalidraw

Check out our documentation for more details!

Contributing

Integrations

Who's integrating Excalidraw

Google Cloud • Meta • CodeSandbox • Obsidian Excalidraw • Replit • Slite • Notion • HackerRank • and many others

Sponsors & support

If you like the project, you can become a sponsor at Open Collective or use Excalidraw+.

Thank you for supporting Excalidraw

Last but not least, we're thankful to these companies for offering their services for free:

Vercel Sentry Crowdin

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Description
Virtual whiteboard for sketching hand-drawn like diagrams
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