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FlareDraw
whiteboard on the edge.

A self-hosted whiteboard on Cloudflare: Excalidraw, but yours. Collaborative drawing with R2 backup, share links and OAuth sign-in. Your diagrams, your account, your data.

open sourceeleven commits, two days (March 2026)built on ExcalidrawView on GitHub ↗
// audioHear about FlareDraw, narrated by the Grid
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Hosted whiteboards keep your diagrams on someone else’s servers, behind their account, on their terms. Switch off your subscription and the boards go with it.

What it does

Collaborative

Sketch and diagram together, share with a link.

Backed up to R2

Your boards saved to your own Cloudflare storage.

OAuth sign-in

Secure access, no extra password to manage.

  • Your diagrams live in your own Cloudflare storage
  • Share a board with a link, no account required to view
  • Self-hosted means no per-seat bill and no lock-in

Built for teams that already run on Cloudflare and want a collaborative whiteboard they own outright.

Not for you if you want a managed SaaS whiteboard with support and zero setup. FlareDraw is yours to host and run.

● built in the open

Eleven commits, two days

Built in a two-day March sprint and open-sourced: take Excalidraw, give it Cloudflare persistence, auth and share links. Sometimes the whole product is a weekend, and the repo is public if you want to see how.

read the making of ↗
PlatformCloudflare Workers
StorageR2, your own bucket
AuthOAuth sign-in
BaseExcalidraw, self-hosted

Where do my diagrams live?

In your own Cloudflare R2 storage, under your account. Your diagrams, your account, your data.

Is it really open source?

Yes. The repo is public on GitHub. Take Excalidraw, add Cloudflare persistence, auth and share links, and run it yourself.

Want FlareDraw for your business?

Tell us what you need. We’ll give you a straight answer on whether it fits.