Eraser
tldraw
| Feature | Eraser | tldraw |
|---|---|---|
| Pricing | Free / from $10/mo | Free / from $0/mo |
| Free Plan | ✓ Yes | ✓ Yes |
| Rating | 4.5 / 5 | 4.5 / 5 |
| Best For | engineering-teams, solution-architects, technical-documentation, system-design | developers, quick-sketches, embedded-canvas-apps, open-source-projects |
| Founded | 2022 | 2021 |
| Diagrams As Code | ✓ | ✗ |
| Ai Diagrams | ✓ | ✗ |
| Whiteboarding | ✓ | ✗ |
| Documentation | ✓ | ✗ |
| Version History | ✓ | ✗ |
| Templates | ✓ | ✗ |
| Collaboration | ✓ | ✗ |
| Infinite Canvas | ✗ | ✓ |
| Drawing Tools | ✗ | ✓ |
| Real Time Collaboration | ✗ | ✓ |
| Embeddable Sdk | ✗ | ✓ |
| Export | ✗ | ✓ |
| Ai Features | ✗ | ✓ |
| Multiplayer | ✗ | ✓ |
✓ Eraser Pros
- AI-generated diagrams from text descriptions
- Code-first diagrams with version control
- Combines docs and diagrams in one canvas
- Purpose-built for technical architecture docs
✗ Eraser Cons
- Limited general-purpose whiteboarding features
- Smaller template library than Miro/Lucidchart
- Not suited for non-technical teams
✓ tldraw Pros
- Completely free and open-source
- Incredibly fast and responsive canvas
- Embeddable SDK for building custom apps
- AI-powered features (make real, draw-to-code)
✗ tldraw Cons
- Fewer built-in shapes than enterprise whiteboards
- No built-in templates or frameworks
- Collaboration requires self-hosting or tldraw.com
The Verdict
Eraser is built for engineering teams and solution architects, with a focus on diagrams-as-code and ai-diagrams. tldraw targets developers and quick sketches and leads with infinite-canvas and drawing-tools.
On pricing, tldraw is the clear winner for budget-conscious users — starting at $0/mo compared to $10/mo for Eraser. That $10/mo difference adds up quickly for growing teams.
Both offer free plans, so you can test each with your real workflow before committing to a subscription.
This is a genuinely close comparison. If you can, sign up for both free trials (where available) and run a one-week test with your actual team tasks before deciding.