Eraser

Free plan APIExtensionSelf-hostedWeb

What Eraser is

Eraser creates AI-powered diagrams for technical teams from prompts, code, files, and private Git repositories. Supported diagram types include flow charts, entity-relationship diagrams, cloud architecture diagrams, sequence diagrams, and BPMN diagrams. Users can refine generated diagrams through AI edits or manual diagram-as-code, and reference libraries can ground results in company building blocks. Collaboration includes real-time editing, comments, tagging, and unlimited free guests. Eraser lists GitHub, Notion, Confluence, and a VS Code extension, along with live diagram embeds and Git-powered updates. The free plan costs nothing and includes three files, three AI diagrams, and seven-day version history. Starter is $15 a month when billed annually, or 20 USD monthly; it adds private files and API calls. The diagram API is for paid users, and MCP operations are subject to plan AI-credit limits. Eraser says it is SOC 2 Type 2 certified and does not train AI models on customer content.

Who it suits

Eraser is aimed at enterprise architects, DevOps teams, technology consultants, and software engineers who need to create and collaborate on technical diagrams. Enterprise deployment options include multi-tenant, single-tenant, and self-hosted setups.

What it does well

Creates diagrams from prompts, code, files, and private repositories.
Supports real-time collaboration and unlimited free guests.
Starter includes private files and API calls.
Exports to PNG, SVG, PDF, and other formats.

What to know first

Free plan includes only three files and three AI diagrams.
Diagram API is limited to paid users.
MCP operations depend on plan AI-credit limits.

Limits

The free plan includes 3 files, 3 AI diagrams and 7-day version history. Private files are included from Starter, and SAML SSO from Business.

Plans

Plan	Billed and limits	Price
Free	Free forever; $0 / member / mo · 3 files · 3 AI diagrams · 7-day version history · unlimited guests · diagram-as-code · Markdown notes · GitHub, Notion, Confluence & VS Code	Free
Starter	billed annually, or $20 monthly; per member / month · unlimited files · 40 AI diagrams · 90-day version history · private files · 20 custom icons · API calls	$15 a month
Business	billed annually, or $60 monthly; per member / month · unlimited files · 250 AI diagrams · unlimited version history · SAML SSO · 100 custom icons · reference diagrams	$45 a month
Enterprise	Custom; call for pricing details · unlimited files · unlimited AI diagrams · unlimited version history · flexible deployments · customer success manager · ACH and wire transfer · usage reporting	On request

As eraser.io lists them, read 15 Oct 2026. The maker's own page has the final word.

Getting started

Visit Eraser.io and start with the Free plan or choose a paid plan.
Create a diagram from a prompt, code, file or private Git repository.
Refine the result with diagram-as-code or AI edits.
Invite collaborators or free guests to comment and tag diagrams.
Connect GitHub, Notion, Confluence or the VS Code extension if useful.

Verdict

Eraser combines AI diagram creation with manual editing and team collaboration. The free plan is constrained, while private files and API calls begin with Starter.

Questions

Is Eraser free?

Yes. Its Free plan is free forever and includes 3 files, 3 AI diagrams, 7-day version history and unlimited guests.

How much do the paid plans cost?

Starter costs $15 per member per month with annual billing, or $20 monthly. Business costs $45 per member per month with annual billing, or $60 monthly.

Which diagram types does Eraser support?

It lists flow charts, entity-relationship diagrams, cloud architecture diagrams, sequence diagrams and BPMN diagrams.

Can Eraser be self-hosted?

Yes. Enterprise deployment options include multi-tenant, single-tenant and self-hosted deployments.

Does Eraser train AI models on customer content?

Eraser says it does not train AI models on customer content.

Which integrations does Eraser list?

It lists GitHub, Notion and Confluence, plus a VS Code extension.

Facts from Eraser's own pages

AI data training: Eraser says neither it nor its LLM provider will train models on customer data. · docs.eraser.io, 15 Oct 2026
AI diagram editing: Generated diagrams can be edited manually, changed with further AI prompts and refined on a canvas. · docs.eraser.io, 15 Oct 2026
AI diagram input: AI diagrams accept natural-language text, code snippets, image files and uploaded documents as inputs. · docs.eraser.io, 15 Oct 2026
API access: API tokens are provisioned per team and are limited to paid plans. · docs.eraser.io, 15 Oct 2026
API and MCP: The diagram API is available to paid users, while the MCP server supports diagram operations from compatible clients subject to plan AI credit limits. · eraser.io, 29 Sept 2026
API pricing: Usage pricing lists $60 per 100 AI credits, $80 per 100 prompt-render calls and $20 per 100 element-render calls. · docs.eraser.io, 15 Oct 2026
API scope: Reference documentation covers teams, files, diagrams, folders, exports, embeds, AI requests, usage metrics and audit logs. · docs.eraser.io, 15 Oct 2026
Canvas and notes: The product combines an infinite canvas with Markdown notes, embeds, wikilinks and real-time collaboration. · eraser.io, 15 Oct 2026
Cloud data sources: Documentation lists connectors for AWS, Azure, Google Cloud, ServiceNow, VMware, Cisco, Ardoq and OrbusInfinity. · docs.eraser.io, 15 Oct 2026
Collaboration: Plans include commenting, tagging, real-time collaboration and export to PDF, PNG, SVG and Markdown. · eraser.io, 15 Oct 2026
Company founded: LinkedIn lists the company as founded in 2020. · linkedin.com, 15 Oct 2026
Company headquarters: LinkedIn lists headquarters in San Mateo, California. · linkedin.com, 15 Oct 2026
Company legal name: Crunchbase lists the legal name as Eraser Labs, Inc. · crunchbase.com, 15 Oct 2026
Company size: LinkedIn lists Eraser as having 11–50 employees. · linkedin.com, 15 Oct 2026
Deployment: Enterprise deployment options include multi-tenant, single-tenant, or self-hosted deployments. · eraser.io, 29 Sept 2026
Diagram-as-code: Eraser uses a DSL so diagrams can be created and maintained by editing text rather than dragging shapes. · docs.eraser.io, 15 Oct 2026
Diagram editing: AI-generated diagrams can be refined manually with diagram-as-code or through AI edits. · eraser.io, 29 Sept 2026
Diagram types: The documented diagram-as-code types are flow charts, entity-relationship diagrams, cloud architecture diagrams, sequence diagrams and BPMN diagrams. · docs.eraser.io, 15 Oct 2026
Documentation depth: The documentation includes quickstarts, syntax references, integration guides, team administration, security, billing and a multi-endpoint REST API reference. · docs.eraser.io, 15 Oct 2026
Free plan: Yes · eraser.io, 20 Sept 2026
Funding record: Crunchbase lists one seed funding round and names Caffeinated Capital among the investors, but masks the amount. · crunchbase.com, 15 Oct 2026
Git integration: Git repositories can supply source material for codebase diagrams, and Eraserbot can keep diagrams current as code changes. · docs.eraser.io, 15 Oct 2026
Inputs: Diagrams can be generated from prompts, code, files, and private Git repositories. · eraser.io, 29 Sept 2026
Integrations: Official integrations include GitHub, Notion, Confluence and a VS Code extension. · eraser.io, 15 Oct 2026