Is open source Parse still going? https://parseplatform.org/
An open source alternative of Parse for SQL databases : https://github.com/xgenecloud/xgenecloud
* Instantly generates REST APIs & GraphQL APIs on 'ANY' MySQL, PostgreSQL, Microsoft SQL Server, SQLite & MariaDB databases.
* Has a built in GUI to design SQL schema which auto-generates reversible schema migrations.
* And lastly, the entire backend generated can be even deployed as a Lambda Function or GCP Cloud Function or Azure Function App!
Demos are below : Happy to answer any questions
[1] : GUI based schema designer : https://www.youtube.com/watch?v=ETEEcY4mmEg&list=PLhQvP2JTFb...
[2] : REST API creation : https://www.youtube.com/watch?v=gEU-QvmwSKQ&list=PLhQvP2JTFb...
[3] : GraphQL API creation : https://www.youtube.com/watch?v=qaLIpXe1gb0&list=PLhQvP2JTFb...
(full disclosure : Im the Founder of XgeneCloud)