Eraser review

Eraser is built for engineers who document software architecture. You can paste a prompt, drop in Terraform or upload a design doc, and Eraser lays out a diagram that you then refine on a visual canvas or through AI chat. Diagram-as-code, markdown notes and more than 3,000 tech icons are on every plan, and integrations cover GitHub, Notion, Confluence and VS Code, plus an MCP server so AI clients can create and update diagrams. The free plan allows 3 files and 3 AI credits. Business, at $45 per member per month billed annually or $60 monthly, adds unlimited files, 100 AI credits a month, one Git repo and one data source, private files and unlimited version history. Business Plus, at $42 per member with a 10 seat minimum, adds SAML SSO and more connected sources. Guests are free on every plan. The price is high for general diagramming, and the tool is aimed at technical diagrams rather than org charts or business processes.

Who it is for

Software and platform engineering teams that want architecture diagrams generated from code and kept in sync with Git.

Price

Free plan with 3 files; Business $45 per member per month billed annually or $60 monthly.

Business For small teams $45 / member / mo billed annually, or $60 monthly
Quoted from the vendor pricing page on November 9, 2026.

Key features

• AI diagrams from text, code, Terraform or uploaded files such as Visio and draw.io
• Diagram-as-code and 3000+ tech icons on every plan
• Git repository and data source connections from Business
• GitHub, Notion, Confluence and VS Code integrations
• MCP server for creating and updating diagrams from AI clients

Strengths and weaknesses

• Strength: Generates architecture diagrams from real code and infrastructure files
• Strength: Unlimited free guests on every plan
• Strength: Diagram-as-code and markdown notes suit engineering workflows
• Weakness: Business at $45 per member is the highest entry price on this list
• Weakness: Free plan is limited to 3 files and 3 AI credits
• Weakness: Focused on technical diagrams, not general business flowcharts

Key facts

• Free plan: 3 files, 3 AI credits
• Business: $45 per member per month billed annually, or $60 monthly
• Business Plus: $42 per member per month, minimum 10 seats, billed annually
• Tech icons: 3000+
• Customers: 5,000+, per Eraser

Where it ranks

Eraser is No. 8 in our Best Diagramming Software verdict.