Element
Eraser
| Feature | Element | Eraser |
|---|---|---|
| Pricing | Free / from $5/mo | Free / from $10/mo |
| Free Plan | ✓ Yes | ✓ Yes |
| Rating | 4.2 / 5 | 4.5 / 5 |
| Best For | open-source-teams, governments, privacy-focused-orgs, developers | engineering-teams, solution-architects, technical-documentation, system-design |
| Founded | 2017 | 2022 |
| Encrypted Messaging | ✓ | ✗ |
| Voice Video Calls | ✓ | ✗ |
| Spaces | ✓ | ✗ |
| Bridges | ✓ | ✗ |
| Self Hosting | ✓ | ✗ |
| Federation | ✓ | ✗ |
| Diagrams As Code | ✗ | ✓ |
| Ai Diagrams | ✗ | ✓ |
| Whiteboarding | ✗ | ✓ |
| Documentation | ✗ | ✓ |
| Version History | ✗ | ✓ |
| Templates | ✗ | ✓ |
| Collaboration | ✗ | ✓ |
✓ Element Pros
- Decentralized architecture
- End-to-end encryption
- Self-hosting option
- Bridges to other platforms
✗ Element Cons
- Complex setup for non-technical users
- Smaller ecosystem
- Performance can lag on large rooms
✓ 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
The Verdict
Element is built for open source teams and governments, with a focus on encrypted-messaging and voice-video-calls. Eraser targets engineering teams and solution architects and leads with diagrams-as-code and ai-diagrams.
On pricing, Element is the clear winner for budget-conscious users — starting at $5/mo compared to $10/mo for Eraser. That $5/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.
Feature-wise, Eraser offers broader built-in capabilities (7 features vs 6), while Element takes a more focused approach — which can mean a simpler, faster onboarding experience.
Bottom line: Eraser has a slight overall edge — but if decentralized architecture matters most to you, Element may still be the right call.