head to head · open source
openGym vs Logto
openGym has 15,277 GitHub stars, 2,008 forks, 109 open issues and last shipped yesterday. Logto has 14,769 stars, 1,202 forks, 183 open issues and last shipped 2 days ago. openGym leads on adoption by 3% (15,277 vs 14,769 stars). openGym is written in JavaScript under AGPL-3.0; Logto is written in TypeScript under MPL-2.0. openGym has attracted 13% as many forks as stars, Logto 8%. openGym was the more recently maintained of the two, and both are self-hostable with no licence fee.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| openGym | Logto | |
|---|---|---|
| GitHub stars | ★ 15K | ★ 15K |
| License | AGPL-3.0 | MPL-2.0 |
| Written in | JavaScript | TypeScript |
| Last push | 2026-10-24 | 2026-10-23 |
| Forks | ⑂ 2.0K | ⑂ 1.2K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick openGym if
- You weight community size — 15K stars and counting
- You want the AGPL-3.0 license terms
- Your stack matches JavaScript
- You value the larger contributor base for long-term maintenance
pick Logto if
- You want the Logto feature set and don't need the biggest community
- You prefer the MPL-2.0 license terms
- Your stack matches TypeScript
- You evaluated both and Logto fits your workflow better
About openGym
A self hosted gym & body weight tracker you actually own. Plan your week, run guided workouts, track every set and your body weight over time — on your phone, synced across devices, behind your own passkey login. No account on someone else's server, no subscription, no ads. Just docker compose up . Home — today's workout & weight Guided workout — animated demos & sets Stats — heatmap, charts & PRs 🌐 opengym.duarte santos.ch · 📦 Source on GitHub · 🦊 GitLab mirror Screenshots, docs and the APK download live on the site. Want to poke at it first? The in browser demo is the real app with example data — no…
read the full openGym overview →
About Logto
Logto Logto is the modern, open source auth infrastructure for SaaS and AI apps. It takes the pain out of OIDC and OAuth 2.1 and makes it easy to build secure, production ready auth with multi tenancy, enterprise SSO, and RBAC. website • cloud • docs • api • blog • auth wiki • newsletter Why Logto? Built for teams scaling SaaS, AI, and agent based platforms without the usual auth headaches. With Logto, you get: Multi tenancy, enterprise SSO, and RBAC : ready to use, no workarounds. Pre built sign in flows , customizable UIs, and SDKs for 30+ frameworks. Full support for OIDC, OAuth 2.1, and SAML without the…
read the full Logto overview →
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Frequently asked questions
Is openGym or Logto more popular?
openGym has 15,277 GitHub stars and Logto has 14,769. openGym has the larger community by that measure.
Are openGym and Logto free?
Both are open source. openGym is licensed under AGPL-3.0 and Logto under MPL-2.0. Neither carries a licence fee.
What is the difference between openGym and Logto?
openGym is written in JavaScript and Logto in TypeScript. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, openGym or Logto?
Choose openGym if you want the larger community (15,277 stars) or its AGPL-3.0 licence terms. Choose Logto if its feature set, stack or MPL-2.0 licence fits better. Both are self-hostable.