Eraser
AI diagramming and docs canvas for engineering teams
What is Eraser?
Eraser is a diagramming tool for engineering teams. Each file pairs an infinite canvas with a Markdown note editor, and diagrams can be drawn by hand, written as diagram-as-code, or generated by AI from a prompt, an image, a file or a connected Git repository. It covers architecture, sequence, flowchart, ERD and BPMN diagrams, integrates with GitHub, Notion, Confluence and VS Code, and offers a REST API and an MCP server for AI agents.
Eraser has a free plan. Paid plans start at $15 per member / month, billed annually. See every plan
Good for
- Engineering teams documenting system architecture
- Developers who prefer to write diagrams as code
- Keeping diagrams in step with a Git repository
- Embedding live-updating diagrams in Notion or Confluence
Worth knowing
- The Free plan stops at 3 files and 3 AI diagrams, keeps 7 days of version history and has no private files.
- AI use beyond a plan's monthly credits costs $60 per 100 credits, and only on paid plans with usage-based pricing switched on.
- API calls are billed by usage on top of a paid plan: $80 per 100 prompt-to-diagram calls and $20 per 100 code-to-diagram calls.
- The vendor's site lists no desktop or mobile app; Eraser runs in a browser, and SAML SSO needs the Business plan.
Key features
- AI diagram generation
- A prompt, an image or a file such as Terraform or a database schema is turned into an editable diagram, which can then be refined through AI chat or by hand in the visual editor.
- Diagram-as-code
- Architecture, sequence, flowchart, ERD and BPMN diagrams each have a text syntax, so a diagram can be read, compared and edited as code. It is included on every plan.
- Canvas with Markdown notes
- A file holds one infinite canvas and a note editor with Markdown support. Figures from the canvas can be embedded in the document, and files export to PDF, PNG, SVG or Markdown.
- Codebase diagrams and Eraserbot
- Diagrams can be generated from a connected Git repository. Eraserbot watches chosen files and comments on pull requests with updated diagrams when they change.
- REST API and MCP server
- The API renders a diagram from a prompt or from Eraser's diagram code. The MCP server lets Claude, Cursor or ChatGPT create, search, update and export diagrams.
- Real-time collaboration and guests
- Members edit together in real time and leave comments and mentions. Guests are free on every plan and can edit or comment only on files they are invited to.
Eraser pricing
- Starts at
- $15 per member / month, billed annually
- Free plan
- 3 files, 3 AI diagrams and 7-day version history, with unlimited guests, diagram-as-code, Markdown notes and the GitHub, Notion, Confluence and VS Code integrations. No private files.
- Free trial
- None listed
| Plan | Price | What you get |
|---|---|---|
| Free | $0 | 3 files, 3 AI diagrams and 7-day version history, with unlimited guests, diagram-as-code and Markdown notes. |
| Starter | $15per member / month, billed annually ($20 billed monthly) | Unlimited files, 40 AI credits a month, 90-day version history, private files, 20 custom icons and usage-based API calls. |
| Business | $45per member / month, billed annually ($60 billed monthly) | Everything in Starter, plus 250 AI credits a month, unlimited version history, SAML SSO, 100 custom icons and reference diagrams. |
| Enterprise | Custom | Unlimited AI diagrams, flexible deployment including single-tenant and self-hosted, usage reporting, a customer success manager and payment by ACH or wire. |
Read from eraser.io on Oct 6, 2026. Prices change, so confirm with Eraser before you buy.
Ways to pay less
- Annual discount25% less with annual billing
Starter is $15 per member a month billed annually against $20 billed monthly, and Business is $45 against $60, which works out 25% cheaper on both plans.
Stated on eraser.io - EducationEducation discount on request
Eraser's docs say discounts are available to education users, who request one by filling out a form. The size of the discount is not published.
Stated on docs.eraser.io - NonprofitNonprofit discount on request
Non-profit users can request a discount through the same form linked from the pricing page FAQ and the docs. The size of the discount is not published.
Stated on docs.eraser.io
Works with
- GitHub
- Notion
- Confluence
- VS Code
- AWS
- Azure
- Google Cloud
- ServiceNow
Eraser alternatives
- Eraser vs Lucidchart
Free plan · from $9/mo
- Eraser vs Mermaid
Free plan · from $10/mo
- Eraser vs Excalidraw
Free plan · from $6/mo
- Eraser vs Whimsical
Free plan · from $10/mo
Common questions
Is Eraser free?
Eraser has a free plan. 3 files, 3 AI diagrams and 7-day version history, with unlimited guests, diagram-as-code, Markdown notes and the GitHub, Notion, Confluence and VS Code integrations. No private files. Paid plans start at $15 per member / month, billed annually.
How much does Eraser cost?
Eraser lists 4 plans. Free: $0. Starter: $15 per member / month, billed annually ($20 billed monthly). Business: $45 per member / month, billed annually ($60 billed monthly). Enterprise: custom pricing. Prices were read from eraser.io on Oct 6, 2026.
What platforms does Eraser work on?
Eraser is available on Web.
Does Eraser offer any discounts?
Eraser publicly lists the following: 25% less with annual billing; Education discount on request; Nonprofit discount on request.
Does Eraser have an Android app?
No Android app was listed when its pages were read on Oct 6, 2026. Eraser is listed for Web.
Does Eraser have an iPhone app?
No iPhone app was listed when its pages were read on Oct 6, 2026. Eraser is listed for Web.
Is Eraser open source?
Eraser is not described as open source on its own site, as read on Oct 6, 2026.
Does Eraser have an API?
Yes. Eraser offers a public API, according to its own site.
What does Eraser integrate with?
Eraser's listing names GitHub, Notion, Confluence, VS Code, AWS, Azure, Google Cloud and ServiceNow. A listing names up to eight integrations, so it may connect to more.
Does Eraser have a student discount?
Education discount on request. Eraser's docs say discounts are available to education users, who request one by filling out a form. The size of the discount is not published.
Who makes Eraser?
Eraser is made by Eraser Labs, Inc.
What are the alternatives to Eraser?
The closest alternatives to Eraser in our directory are Lucidchart, draw.io, Mermaid, Excalidraw and Whimsical. Each one has a side-by-side comparison with Eraser.
Sources for this page
The prices, plans, platforms and features above were read from these pages on Oct 6, 2026.