Can I open-source Eraser?
YES · mature open-source replacementYes. Excalidraw (129k stars), draw.io (43k stars), HedgeDoc (7k stars) are mature open-source replacements for Eraser — self-host in one command and stop paying.
Eraser: The shapes are easy; customers pay for low-friction editing, reliable exports, collaboration, and a canvas that never fights them.
xhigh-fidelity import and export
xpresentation and enterprise controls
xmultiplayer cursors and comments
xlarge template libraries
These projects already replace it, free.
HHedgeDocCollaborative Markdown documents with Mermaid diagrams, revisions, and reveal.js presentations; no free-form whiteboard, but the engineering-doc job is real.open source↗EExcalidrawVirtual hand-drawn style whiteboard for sketching diagrams collaborativelyopen source↗Ddraw.ioThe diagramming workhorse — flowcharts, architecture diagrams, UML — runs fully client-side or as your own container.open source↗What each one is, in full: Excalidraw · draw.io
all 3 open-source alternatives to Eraser →· no votes, no pay-to-list · just what's real
Eraser pricing
| plan | monthly | annual (per mo) | what you get |
|---|---|---|---|
| free | $0/workspace | $0/workspace | 3 files; 3 AI diagrams/month; 7-day version history; unlimited guests |
| starter | $20/user | $15/user | Unlimited files; 40 AI diagrams/member/month; 90-day version history; 20 custom icons; usage-based API |
| business | $60/user | $45/user | Unlimited files; 250 AI diagrams/member/month; unlimited version history; 100 custom icons; SSO; usage-based API |
| enterprise | custom | — | Unlimited files, AI diagrams, version history and custom icons |
free tier3 files; 3 AI diagrams/month; 7-day version history; unlimited guests
billingmonthly + annual
hidden costsGuests are free, but members are paid seats. API use is separately usage-based; the public pricing page does not publish the unit rate.
verified 2026-08-12 · source ↗
Can I open-source Eraser?
Yes. HedgeDoc replaces Eraser today — self-host it on your own server or machine with no subscription. The full list of open-source alternatives is on this page.
How much does Eraser cost?
Eraser's pricing is usage-based or varies by plan · The official pricing URL is recorded, but a stable current amount was not safely recoverable in this pass. Do not publish a number until rechecked..
What do I lose by replacing Eraser?
Honestly: high-fidelity import and export; presentation and enterprise controls; multiplayer cursors and comments; large template libraries. If any of those are load-bearing for you, keep paying.
Is there an open-source alternative to Eraser?
Yes: HedgeDoc (Collaborative Markdown documents with Mermaid diagrams, revisions, and reveal.js presentations; no free-form whiteboard, but the engineering-doc job is real.) Excalidraw (Virtual hand-drawn style whiteboard for sketching diagrams collaboratively) draw.io (The diagramming workhorse — flowcharts, architecture diagrams, UML — runs fully client-side or as your own container.) All 3 curated open-source alternatives are at caniopensourceit.online/eraser/alternatives.