AltCatalog

Alternatives to Supabase

Open-source Firebase alternative built on Postgres

Alt Score

Alt Score · 100

How this alternative ranks. How it works →

Verified coverage 90%100
Visibility 10%100

Verified coverage = sourced yes and partial answers in the category checklist. Visibility = relative app-page views on AltCatalog over 30 days, neutral below 500 category views. Payment, votes, and vendor opinions are never score inputs.

#1 of 10 in Backend-as-a-service

Supabase ranks #1 of 10 in Backend-as-a-service, with an Alt Score of 100. It is licensed under Apache License 2.0, open source with paid hosting from $25/mo (Pro) and available on the web. 12 of 12 checklist rows are verified against a public source.

Supabase is an open-source backend-as-a-service built on PostgreSQL, providing a managed database, authentication, file storage, realtime subscriptions, edge functions, auto-generated APIs, and vector search — with a hosted platform and a self-hostable stack.

Most compared with AppwriteAWS AmplifyConvex
Official site Suggest an edit Data history Work on Supabase? Claim this page
Who it's for

Developers building web, mobile, or AI applications who want a Postgres-backed backend without standing up separate services for auth, storage, and realtime — from solo/indie builders on the free tier up to production teams needing SOC2/HIPAA compliance on the Team and Enterprise plans.

What you get

A dedicated Postgres database with instant auto-generated REST and realtime APIs, built-in authentication and Row Level Security, S3-compatible object storage, globally-deployed Deno-based Edge Functions, and pgvector support for AI/vector search — all managed from one dashboard or self-hosted via Docker.

How it works

Every project provisions a dedicated Postgres instance that Supabase introspects to auto-generate a RESTful API (via PostgREST) and realtime websocket channels, while Postgres Row Level Security policies (integrated with Supabase Auth's JWTs) enforce per-row access control without a separate authorization server.

Why people leave Supabase

Dashed reasons are sourced facts; the rest are opinions. Vendors can dispute.

Sign in to add a reason — new reasons go through moderation before appearing.

Ranked alternatives

Ordered by Alt Score. Click any score to see the breakdown.

Sponsored Paid slot. Never affects the ranked order below. Promote here →
01

Appwrite is an open-source backend-as-a-service that bundles a database, authentication, file storage, realtime, serverless functions, and messaging behind REST/GraphQL APIs and client SDKs, available.

BSD-3-Clause WindowsmacOSLinuxWeb
Alt Score

Alt Score · 96

How this alternative ranks. How it works →

Verified coverage 90%96
Visibility 10%100

Verified coverage = sourced yes and partial answers in the category checklist. Visibility = relative app-page views on AltCatalog over 30 days, neutral below 500 category views. Payment, votes, and vendor opinions are never score inputs.

02

AWS Amplify is Amazon's backend-as-a-service toolkit for web and mobile apps, providing managed authentication (Cognito), auto-generated GraphQL/REST APIs (AppSync), a database (DynamoDB), file storag.

Apache-2.0 WebiOSAndroid
Alt Score

Alt Score · 93

How this alternative ranks. How it works →

Verified coverage 90%92
Visibility 10%100

Verified coverage = sourced yes and partial answers in the category checklist. Visibility = relative app-page views on AltCatalog over 30 days, neutral below 500 category views. Payment, votes, and vendor opinions are never score inputs.

03

Convex is a reactive backend-as-a-service where the database, server functions, and realtime subscriptions are written in TypeScript, giving apps live-updating queries, transactional writes, file stor.

FSL-1.1-Apache-2.0 WebLinux
Alt Score

Alt Score · 89

How this alternative ranks. How it works →

Verified coverage 90%88
Visibility 10%100

Verified coverage = sourced yes and partial answers in the category checklist. Visibility = relative app-page views on AltCatalog over 30 days, neutral below 500 category views. Payment, votes, and vendor opinions are never score inputs.

04

InstantDB is an open-source backend-as-a-service focused on realtime, relational client-side queries: every query is multiplayer by default, with built-in authentication (magic codes, OAuth, guest aut.

Apache-2.0 WebiOSAndroid
Alt Score

Alt Score · 85

How this alternative ranks. How it works →

Verified coverage 90%83
Visibility 10%100

Verified coverage = sourced yes and partial answers in the category checklist. Visibility = relative app-page views on AltCatalog over 30 days, neutral below 500 category views. Payment, votes, and vendor opinions are never score inputs.

05

Back4app is a backend-as-a-service platform built on top of the open-source Parse Server framework, offering a managed MongoDB (and NoSQL) database, auto-generated REST/GraphQL APIs, built-in authenti.

WebiOSAndroid
Alt Score

Alt Score · 81

How this alternative ranks. How it works →

Verified coverage 90%79
Visibility 10%100

Verified coverage = sourced yes and partial answers in the category checklist. Visibility = relative app-page views on AltCatalog over 30 days, neutral below 500 category views. Payment, votes, and vendor opinions are never score inputs.

06

Firebase is Google's app-development platform offering a backend-as-a-service: the Firestore and Realtime Database, Authentication, Cloud Storage, Cloud Functions, hosting, and client SDKs for web, iO.

Proprietary WebiOSAndroid
Alt Score

Alt Score · 81

How this alternative ranks. How it works →

Verified coverage 90%79
Visibility 10%100

Verified coverage = sourced yes and partial answers in the category checklist. Visibility = relative app-page views on AltCatalog over 30 days, neutral below 500 category views. Payment, votes, and vendor opinions are never score inputs.

07

Parse Platform (Parse Server) is a fully open-source Node.js backend-as-a-service framework, originally built by Parse Inc.

Apache-2.0 iOSmacOSAndroidWeb +1
Alt Score

Alt Score · 81

How this alternative ranks. How it works →

Verified coverage 90%79
Visibility 10%100

Verified coverage = sourced yes and partial answers in the category checklist. Visibility = relative app-page views on AltCatalog over 30 days, neutral below 500 category views. Payment, votes, and vendor opinions are never score inputs.

08

Xano is a no-code/visual backend-as-a-service platform that gives teams a managed Postgres database, auto-generated and customizable REST/Swagger APIs, built-in authentication, file storage, and a vis.

Proprietary
Alt Score

Alt Score · 81

How this alternative ranks. How it works →

Verified coverage 90%79
Visibility 10%100

Verified coverage = sourced yes and partial answers in the category checklist. Visibility = relative app-page views on AltCatalog over 30 days, neutral below 500 category views. Payment, votes, and vendor opinions are never score inputs.

09

PocketBase is an open-source backend-as-a-service packaged as a single Go executable, bundling an embedded SQLite database, authentication, file storage, realtime subscriptions, and an admin dashboard.

MIT License LinuxWindowsmacOSWeb
Alt Score

Alt Score · 78

How this alternative ranks. How it works →

Verified coverage 90%75
Visibility 10%100

Verified coverage = sourced yes and partial answers in the category checklist. Visibility = relative app-page views on AltCatalog over 30 days, neutral below 500 category views. Payment, votes, and vendor opinions are never score inputs.

Feature comparison

Rows come from the Backend-as-a-service checklist (16 rows). Human-verified cells only. ? means the value has not been verified.

Comparing Supabase Appwrite × AWS Amplify × Convex × InstantDB × Back4app ×
+ Add app
Firebase Parse Platform PocketBase Xano
Backend-as-a-service checklist SupabaseAppwriteAWS AmplifyConvexInstantDBBack4app
Pricing model
Starts at
License
Platforms
Managed database
Auth built in
File / object storage
Realtime subscriptions
Serverless / edge functions
Auto-generated APIs
Self-hostable
Open source
Client SDKs
Row-level security
Vector / AI support
Free tier
verified pending unknown (?) Click any cell to view its source or propose a value
Sources & verification 17

Every fact and feature listed for Supabase is verified against its own pages. Each alternative is sourced on its own page.

  • License Apache License 2.0 verified 2026-07-13
    Apache License Version 2.0, January 2004
    https://github.com/supabase/supabase/blob/master/LICENSE
  • Pricing model OSS + paid hosting verified 2026-07-13

    Free self-hostable OSS (see license/self-hostable/open-source cells) plus a hosted platform with Free/Pro $25/mo/Team $599/mo/Enterprise tiers.

    Predictable pricing, designed to scale Start building for free, collaborate with your team, then scale to millions of users
    https://supabase.com/pricing
  • Starts at $25/mo (Pro) verified 2026-07-13
    Pro Most Popular For production applications with the power to scale. Get Started From $ 25 / month
    https://supabase.com/pricing
  • Platforms Web verified 2026-07-13

    Self-hosting via Docker (supabase.com/docs/guides/self-hosting) implies server/Linux deployment but no page explicitly names an OS, so Linux was left out per the skip-unclear-members rule.

    You can use them directly from the browser (two-tier architecture), or as a complement to your own API server (three-tier architecture).
    https://supabase.com/docs/guides/api
  • Status active verified 2026-07-13
    New updates and product improvements ... Deprecation notice: @supabase/supabase-js will require TypeScript 5.0 Jul 10, 2026
    https://supabase.com/changelog
  • Managed database Yes verified 2026-07-13
    Every Supabase project is a dedicated Postgres database. 100% portable with no vendor lock-in.
    https://supabase.com/database
  • Auth built in Yes verified 2026-07-13
    Every Supabase project comes with a complete user management system.
    https://supabase.com/auth
  • File / object storage Yes verified 2026-07-13
    An open source S3 compatible storage solution with unlimited scalability, for any file type.
    https://supabase.com/storage
  • Realtime subscriptions Yes verified 2026-07-13
    Sync client state globally over WebSockets. Listen to database changes, store user presence, and broadcast messages to all connected clients.
    https://supabase.com/realtime
  • Serverless / edge functions Yes verified 2026-07-13
    Author, deploy, and monitor serverless functions distributed globally at the edge, close to your users.
    https://supabase.com/edge-functions
  • Auto-generated APIs Yes verified 2026-07-13
    Supabase auto-generates an API directly from your database schema allowing you to connect to your database through a restful interface, directly from the browser.
    https://supabase.com/docs/guides/api
  • Self-hostable Yes verified 2026-07-13
    Install and run your own Supabase on your computer, server, or cloud infrastructure.
    https://supabase.com/docs/guides/self-hosting
  • Open source Yes verified 2026-07-13
    Supabase is a combination of open source tools. We’re building the features of Firebase using enterprise-grade, open source products.
    https://github.com/supabase/supabase
  • Client SDKs Yes verified 2026-07-13
    The Supabase client libraries help you interact with Supabase products, such as the Postgres Database, Auth, and Realtime. They are available in several popular programming languages.
    https://supabase.com/docs/reference
  • Row-level security Yes verified 2026-07-13
    Supabase allows convenient and secure data access from the browser, as long as you enable RLS.
    https://supabase.com/docs/guides/database/postgres/row-level-security
  • Vector / AI support Yes verified 2026-07-13
    Supabase provides an open source toolkit for developing AI applications using Postgres and pgvector.
    https://supabase.com/docs/guides/ai
  • Free tier Yes verified 2026-07-13
    Free Perfect for passion projects & simple websites. Start for Free $ 0 / month
    https://supabase.com/pricing

FAQ

Yes. Convex, InstantDB and Back4app have a free tier or are fully free. Free-tier limits in the comparison table are verified and dated.

Appwrite, AWS Amplify and Convex — every license claim links its source.