Supabase - ~52K stars
- Designed explicitly as an open source firebase alternative
- Typescript based
- Docker support
Appwrite - ~32K stars
- Written in JavaScript and PHP
- Docker based
- Realtime support across all services
- Advanced security features (virus-scanning, data encryption, auto SSL, rate-limiting)
- Cross-platform: supports Web, Flutter, Desktop, Mobile and backend - over 10 SDKs: https://appwrite.io/docs/sdks
- Cloud Functions with +15 runtimes in multiple languages
PocketBase - ~24k stars
- Go based, with Svelte frontend
- Doesn't seem to be an official dockerfile/image but there are unofficial images on dockerhub
- SQLite database
- Not used it but seems better for smaller projects
Parse Server - ~20K stars
- JavaScript based
- MongoDB or PostgreSQL
- Has dockerfile
nakama - ~7.2K stars
- Go based
- Has official Docker images
- CockroachDB (or another Postgres wire-compatible server)
- Designed for use with games
nhost - ~6.7K stars
- Written as a firebase alternative with GraphQL support
- Typescript based
- Includes docker-compose example
- See also Hasura Backend Plus
Kuzzle - ~1.3k stars
- JavaScript based
- Elasticsearch as a NoSQL document storage
- Has Docker Compose file
para - ~500 stars
- Java based
- Has official Docker images
- Database agnostic
LoopBack 4 - ~4k stars
- More of an api development platform than a BaaS, added here because could be good starting point if developing own BaaS
- TypeScript and JavaScript based
Conduit - ~300 stars
- TypeScript based
- Seems to still be in early development
- Database: MongoDB, PostgreSQL
- Database APIs: REST, GraphQL
- Storage: local, Azure Cloud, Google Cloud, Amazon S3 Cloud
- Auth: local, 2FA, Google, Facebook, Twitch, Slack, Figma, GitHub, GitLab, Microsoft, magic link
- Email: Mailgun, Sendgrid, Mandrill, SMTP
- Also has modules for: SMS, chat, forms, routing, push notifications
These services aren't exactly Backend-as-a-Service as I understand it, but might still be useful. For now I'll just add links, and I'll add summaries later on.
SurrealDB - ~21k stars
directus - ~22k stars
strapi - ~54k stars
Userbase - ~2.2k stars
CloudBoost - ~1.4k stars
- Last commit in Nov 2020
- JavaScript based
- Has Docker Compose file
- MongoDB database
Apache Usergrid - ~1k stars
- Last commit in Dec 2020
- Java based
- cassandra database
SkyGear - ~400 stars
- Last commit in Jun 2020
- Seems v. complete but not many users (harder to fix issues)
- Go based
- Platform as a service? Is one needed alongside BaaS? Dokku markets itself as mini heroku, maybe a good one to try first (e.g. Flynn, tsuru, openshift, dokku, cloud foundry)