Eraser vs Preceden
Eraser
eraser.ioPreceden
preceden.comSide by side
| Figure | Eraser | Preceden |
|---|---|---|
| Price from | $15/mo | $10/mo |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | Yes |
| iOS | — | Yes |
| Android | — | Yes |
| API | Yes | — |
| Self-hosted | Yes | — |
| Plans published | 4 | 7 |
| Spec score · Diagramming Software | 9.1 (#3) | 8.4 (#18) |
| Spec score · Diagramming tools | 9.1 (#4) | 8.2 (#27) |
| Diagram types | The documented diagram-as-code types are flow charts, entity-relationship diagrams, cloud architecture diagrams, sequence diagrams and BPMN diagrams. | timelines,Gantt charts,project roadmaps,legal chronologies,comparative timelines |
| Free plan | Yes | Yes |
| Real-time collaboration | Yes | No |
| Support | The Enterprise plan includes a customer success manager, and security reports are available under NDA. | Preceden’s Help Center offers support articles and says users can email the company for help. |
Plans
Preceden
- FreeFree
- Basic$10 a month
- Pro$16 a month
- Basic (annual billing)$10 a month
- Pro (annual billing)$16 a month
- Basic (monthly billing)$25 a month
- Pro (monthly billing)$40 a month
In their own words
Eraser
Eraser is a diagramming tool for technical teams that generates diagrams from prompts, code, files, and private Git repositories. It supports flow charts, entity-relationship diagrams, cloud architecture diagrams, sequence diagrams, and BPMN diagrams. Generated diagrams can be adjusted with diagram-as-code or AI edits, and reference libraries can align output with company building blocks. Collaboration includes real-time work, comments, tagging, and unlimited free guests. The service lists GitHub, Notion, Confluence, and a VS Code extension, as well as live diagram embeds and Git-powered updates. The free plan includes 3 files, 3 AI diagrams, and 7-day version history. Starter costs $15 a month when billed annually, or $20 monthly; it adds unlimited files, private files, and API calls. The diagram API is for paid users, while MCP operations are subject to plan AI-credit limits. Eraser says it is SOC 2 Type 2 certified, performs annual penetration testing, and does not train AI models on customer content. Enterprise deployment options include multi-tenant, single-tenant, and self-hosted setups.