Comparison, updated 4 November 2026
Archreactor vs Eraser: which architecture diagram tool fits you?
Eraser and Archreactor both generate architecture diagrams with AI, but they are built for different jobs. Eraser is a workspace where engineers keep diagrams and docs together. Archreactor is for explaining a system: it plays a request through the diagram, step by step.
We make Archreactor, so weigh our view accordingly. The Eraser facts below come from eraser.io/pricing, read on 4 November 2026.
Side by side
| Feature | Archreactor | Eraser |
|---|---|---|
| Made for | People who need to explain a system: presales, onboarding, design reviews, interview prep. | Engineering teams that want diagrams and docs in one workspace, written as code or drawn. |
| AI diagrams | From a description or a GitHub repo; credits per month | AI diagrams and documents on every plan, limited by credits on Free |
| Diagram types | Architecture diagrams with Business, Solution and Technical views | Sequence, flowchart, ERD, data flow, cloud, C4, BPMN and more |
| Diagram as code | No | Yes, on every plan |
| Security and enterprise | No SOC 2 yet | SOC 2 Type 2, SAML SSO, self-hosted option (per its site) |
| Walkthroughs | Yes: a request played step by step, each step lighting the parts doing the work | Interactive explainers for current, interim and future state, per its site |
| GitHub | Free plan: 3 imports a month, public or private repos | Business plan or higher |
| Real-time collaboration | Not yet (planned) | Yes, on every plan |
| Export | PNG; PowerPoint and MP4 on Pro; share link | PDF, PNG, SVG, Markdown |
| Free plan | 25 AI credits a month, unlimited hand-drawn diagrams | 3 files, 3 AI credits |
| Paid from | $10 a month (paid plans not open yet) | $45 per member per month billed annually |
Choose Eraser if
your team writes diagrams as code, wants docs and diagrams in one place, needs real-time editing today, or already uses its Notion, Confluence or VS Code integrations.
Choose Archreactor if
you need to explain a system to someone else: a customer, a new hire, a review board or an interviewer. The walkthrough and the Business, Solution and Technical views are the point, and the free plan lets you try an import from your own repo.
Use both?
Plenty of teams could. Keep the working diagrams in Eraser, and use Archreactor when the diagram has to be presented.
Try Archreactor on your own system
Free, no card. Describe a system or import a repo and see the diagram in about a minute.
More comparisons
We make Archreactor. Competitor details were read from each vendor's own pages on 4 November 2026 and can change; follow the links for current plans. Spot an error? Tell us on the contact page and we will fix it.