AI-powered diagrams-as-code and docs for engineering teams.
Eraser is a strong, developer-friendly pick for architecture and systems documentation, and its diagrams-as-code approach plus DiagramGPT genuinely speed up the first draft of technical diagrams. The honest caveats: the free plan is quite limited (a small number of files and AI generations), heavy AI use can require paid usage-based credits on top of the per-member subscription, and the tool is deliberately engineering-focused, so non-technical teams wanting a general whiteboard may prefer a broader canvas. For technical teams, though, the fit and price are reasonable.
Eraser is a technical diagramming and documentation tool for engineering teams that combines diagrams-as-code, a collaborative whiteboard, and docs. Its AI feature, DiagramGPT, generates editable diagrams from natural-language prompts or code, accelerating architecture, sequence, ERD, and cloud diagrams. A free plan offers limited files and AI generations, with per-member paid tiers unlocking more AI, API access, and usage-based credits. It is best for developer-centric documentation rather than general-purpose whiteboarding.
Eraser is a documentation and diagramming tool aimed at software and technical teams. Its core idea is diagrams-as-code: you can describe architecture, flows, and systems in a simple syntax and get clean, version-friendly diagrams, or draw on a collaborative canvas. Docs and diagrams live together, so design decisions and their visuals stay in one place. The AI layer, marketed as DiagramGPT and broader Eraser AI, lets users generate diagrams from natural-language prompts, code snippets, or descriptions, then edit the results directly. This speeds up the tedious first draft of architecture, sequence, entity-relationship, and cloud diagrams, which is where a lot of engineering documentation time goes. Eraser offers a free plan with limited files and AI generations, then per-member paid tiers that unlock more AI usage, API access, and collaboration features, with usage-based AI credits available on top. It is a focused, developer-friendly tool; teams that want a general-purpose whiteboard or deep non-technical diagramming may find its engineering orientation either a perfect fit or a narrowing constraint.
Eraser is a technical diagramming and documentation tool that combines diagrams-as-code, a collaborative whiteboard, and docs, with DiagramGPT AI that generates editable diagrams from prompts or code. It is built for engineering teams documenting architecture and systems. A free plan offers limited files and AI generations, with per-member paid tiers from about $15/member/month and optional usage-based AI credits. Founded in 2020 by Shin Kim, it raised a $4 million seed round in 2021 and has grown to over a million users.
Eraser is a San Francisco-based technical documentation and diagramming company founded in 2020 by Shin Kim.
It raised a $4 million seed round led by Caffeinated Capital in 2021 and reported surpassing one million users, spanning startups to large tech companies. The product focuses on developer-centric diagramming and docs.
Eraser offers diagrams-as-code, a collaborative whiteboard, and integrated docs, so technical designs and their visuals live together. DiagramGPT and Eraser AI generate editable diagrams from natural language or code.
Paid plans add more AI usage, API access, and collaboration features, with usage-based premium AI credits available. Integrations target developer workflows, including GitHub, Confluence, Notion, and VS Code.
Software engineers, architects, and technical teams that need to document architecture, systems, and flows in a version-friendly, developer-oriented way.
Software engineers, architects, and technical writers creating and maintaining diagrams and documentation.
Engineering managers and platform or DevEx leads choosing documentation tooling for their teams.
Senior engineers and tech leads who set documentation practices and evaluate diagramming workflows.
A software team or engineering organization that documents architecture and systems and prefers a developer-friendly, diagrams-as-code approach with AI assistance.
Eraser raised a $4 million seed round led by Caffeinated Capital in 2021. No larger later round has been widely disclosed, and some reports note substantial revenue growth without additional major funding.
DiagramGPT is Eraser's AI feature that generates editable diagrams from natural-language prompts, descriptions, or code snippets, so you can draft architecture, sequence, and ERD diagrams quickly.
Yes. Eraser's free plan allows a limited number of files and around five AI diagram generations or edits, enough to try the workflow before upgrading.
As of August 2026, Starter is about $15 per member per month billed annually, Business around $45 per member per month annually, with custom Enterprise pricing and optional usage-based AI credits.
Diagrams-as-code lets you describe a diagram in a simple text syntax rather than dragging shapes, which keeps diagrams version-friendly and easy to update alongside your codebase.
It is primarily built for technical teams documenting architecture and systems. Non-technical users can use its whiteboard, but its strengths are oriented toward developers.
Side-by-side pages for pricing, features, and best-fit use cases.
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