Design and diagrams
Eraser alternatives
2 open-source projects that already do this job. Free to use - not free to run, which is what the numbers on the right are for.
The projects
jgraph/drawio★7,352 GitHub starsApache-2.0 licenceClient-side diagram editor and renderer with export (PNG, SVG) and rich editing features.Open on GitHub ↗bpmn-io/diagram-js★1,913 GitHub starsMIT licenceWeb toolbox for displaying, editing, and programmatically manipulating diagram nodes, edges, and layouts.Open on GitHub ↗
What you give up either way
- SOC 2 Type II certification and associated audits
- Built-in SAML SSO and enterprise billing/contract support
- MCP server and agent integrations shipped by Eraser
- Advanced team-style presets, template/branding locking, and enterprise-grade penetration testing
- Polish and scale of a mature multi-tenant SaaS product (UX, edge-case AI prompts, scaling)
An open-source project doing the core job proves a replacement is possible. It does not prove it matches Eraser, and it does not prove anyone has run it for a month. How we decide.