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GithubAwesome open-source alternatives to SaaS
Awesome list of open-source startup alternatives to established SaaS products. Maintained by folks at
Also checkout our ROSS index: fastest-growing open-source startups, every quarter.
Criteria
Open-source company is added to the list if:
- Its product is strongly based on an open-source repo
- It has a well-known closed-source competitor, solving a similar business problem
- It is a private for-profit company, founded in the last 10 years
- Its repo has 100+ stars on GitHub
Things change really fast in the startup world, so this list can neither be fully complete, nor 100% up to date.
Don't hesitate to contribute and add new startups. Let's build the most comprehensive list together.
Any questions or suggestions? Feel free to DM project maintainer @garrrikkotua
Startup List
All startups in the list are sorted by categories and sorted in alphabetical order. If you click on the stars badge you will get to the product's repo. Have a good search!
| Category | Company | Description | GitHub Stars | Alternative to |
|---|---|---|---|---|
| API Gateway | Apache APISIX | Cloud Native API Gateway under the Apache Software Foundation | <a href=https://github.com/apache/apisix> | apigee |
| API Platform | Firecamp | DX first open-source API devtool | <a href=https://github.com/firecamp-dev/firecamp> | Postman |
| API Platform | Fusio | API management platform | <a href=https://github.com/apioo/fusio> | Postman |
| API Platform | Hoppscotch | API development ecosystem | <a href=https://github.com/hoppscotch/hoppscotch> | Postman |
| API Platform | Keploy | e2e Testing and Data Mocking | <a href=https://github.com/keploy/keploy> | Smartbear, Newman |
| API Platform | Step CI | API Testing and Monitoring | <a href=https://github.com/stepci/stepci> | Checkly, Postman |
| Auth & SSO | BoxyHQ | Enterprise Readiness made simple | <a href=https://github.com/boxyhq/jackson> | Auth0 |
| Auth & SSO | Cerbos | Granular access control | <a href=https://github.com/cerbos/cerbos> | Okta, Auth0 |
| Auth & SSO | FusionAuth | User authentication and session management framework | <a href=https://github.com/FusionAuth/fusionauth-containers> | Okta, Auth0 |
| Auth & SSO | Hanko | Passkey-first authentication framework | <a href=https://github.com/teamhanko/hanko> | Okta, Auth0 |
| Auth & SSO | Keycloak | User authentication and session management framework | <a href=https://github.com/keycloak/keycloak> | Okta, Auth0 |
| Auth & SSO | OPAL (Permit.io) | Authorization administration framework (Open Policy) | <a href=https://github.com/permitio/opal> | Okta, Auth0 |
| Auth & SSO | Ory | Identity platform | <a href=https://github.com/ory/kratos> | Okta, Auth0 |
| Auth & SSO | Oso | Authorization building framework | <a href=https://github.com/osohq/oso> | Okta, Auth0 |
| Auth & SSO | Supertokens | User authentication and session management framework | <a href=https://github.com/supertokens/supertokens-core> | Okta, Auth0 |
| Auth & SSO | Warrant | Authorization and access control as a service | <a href=https://github.com/warrant-dev/warrant> | Okta, Auth0 |
| Auth & SSO | Zitadel | User authentication and session management framework | <a href=https://github.com/zitadel/zitadel> | Okta, Auth0 |
| Backend as a service | AceBase | Backend server with REST APIs to manage core backend needs | <a href=https://github.com/appy-one/acebase> | Firebase |
| Backend as a service | Amplication | Backend server with REST and GraphQL APIs to manage core backend needs | <a href=https://github.com/amplication/amplication> | Firebase |
| Backend as a service | Appwrite | Backend server with REST APIs to manage core backend needs | <a href=https://github.com/appwrite/appwrite> | Firebase |
| Backend as a service | CASE | Lightweight Backend-as-a-Service with essential features | <a href=https://github.com/casejs/case> | Firebase |
| Backend as a service | Encore | Backend Development Engine for cloud-based apps, APIs, and distributed systems | <a href=https://github.com/encoredev/encore> | Firebase |
| Backend as a service | Kuzzle | Backend server with REST APIs to manage core backend needs | <a href=https://github.com/kuzzleio/kuzzle> | Firebase |
| Backend as a service | Nhost | Backend server with GraphQL | <a href=https://github.com/nhost/nhost> | Firebase |
| Backend as a service | PocketBase | Backend server with REST APIs to manage core backend needs | <a href=https://github.com/pocketbase/pocketbase> | Firebase |
| Backend as a service | Supabase | Backend server with REST APIs to manage core backend needs | <a href=https://github.com/supabase/supabase> | Firebase |
| Business Intelligence | Metabase | Business intelligence software | <a href=https://github.com/metabase/metabase> | Tableau, Power BI, DataStudio |
| Business |
