Catalogue record · hackernews
Free online whiteboard based on Excalidraw. Save canvases to your account, share them by email or link, and draw together in real time.
Freedraw 是基于 Excalidraw 的免费在线白板，可以保存画布到账户、通过邮件或链接分享，多人实时协作绘图。
Seen on hackernews · last checked 2026-10-26.
The teardown — how it actually charges, which mechanism was found, and the seam worth taking — is in the daily letter. This page carries the record and the signals so search engines and link previews have something real to read; the judgement stays with the readers who asked for it.
Get the daily letterThe same record sits in the full catalogue, where every entry can be searched and filtered by the signals above.