Casdoor vs openGym
Casdoor and openGym are both identity and access software. Casdoor is open source under Apache-2.0, with 15k GitHub stars. OpenGym is open source under AGPL-3.0, with 18k GitHub stars.
Which to pick
- Pick Casdoor when
- You want a self-hosted SSO and user management server that is simpler to run than Keycloak.
- Pick openGym when
- You want a free workout log you can self-host or keep on your phone, without a subscription app.
Side by side
An identity and access management server with a web UI supporting OAuth, OIDC, SAML, CAS, LDAP, SCIM, WebAuthn and MFA, plus an MCP and agent gateway.
A gym and body-weight tracker for planning routines, logging workouts and seeing which muscles were trained, with imports from Strong, Hevy and FitNotes.
Very frequent releases and a wide feature list mean rough edges in less-used areas.
Only a few months old despite its star count, and AGPL licensed.
Production-ready
Experimental
Self-hosted server and cloud service
Mobile app and self-hosted server
Go, TypeScript, React, MySQL and PostgreSQL
JavaScript, React, Node.js and Swift
Open source, Apache-2.0 (permissive)
Open source, AGPL-3.0 (network copyleft)
You can build it into a product you sell, as long as you keep its copyright notice.
Use inside your business is unrestricted. If you change it and let customers use it over the internet, you must publish your changes.
15k GitHub stars
18k GitHub stars
Established: started 6 years ago, latest release v4.25.0.
New: started 3 months ago, latest release v1.4.3.
Other comparisons
More identity providers and single sign-on servers
Both sides were judged on 2026-11-03 from each project's README and GitHub data. License, age and popularity lines are worked out directly.