AltCatalog

Alternatives to Convex

Reactive backend with a TypeScript database and functions

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.

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

Convex ranks #4 of 10 in Backend-as-a-service, with an Alt Score of 89. It is licensed under FSL-1.1-Apache-2.0, freemium from $25/developer/month and available on Web and Linux. 12 of 12 checklist rows are verified against a public source.

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 storage, and scheduled/serverless functions.

Most compared with SupabaseAppwriteAWS Amplify
Official site Suggest an edit Data history Work on Convex? Claim this page
Who it's for

TypeScript/JavaScript developers building fullstack web and mobile apps (Next.js, React, React Native, Expo, etc.) who want a backend without hand-rolling a database, API layer, and realtime sync.

What you get

A reactive database with schema-optional documents, TypeScript queries/mutations/actions that double as your API, file storage, scheduling/cron, vector search, and built-in or third-party auth, all deployed from your codebase.

How it works

You write queries, mutations, and actions in TypeScript inside a convex/ folder; Convex generates a typed client API and automatically keeps query results live via WebSocket subscriptions, so UI re-renders whenever the underlying data changes. The backend is open source (FSL-1.1-Apache-2.0) and can be self-hosted or run on Convex's managed cloud.

Why people leave Convex

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

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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

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.

Apache License 2.0 Web
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.

02

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.

03

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.

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 Convex Supabase × Appwrite × AWS Amplify × InstantDB × Back4app ×
+ Add app
Firebase Parse Platform PocketBase Xano
Backend-as-a-service checklist ConvexSupabaseAppwriteAWS AmplifyInstantDBBack4app
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 Convex is verified against its own pages. Each alternative is sourced on its own page.

  • License FSL-1.1-Apache-2.0 verified 2026-07-13
    Functional Source License, Version 1.1, Apache 2.0 Future License ## Abbreviation FSL-1.1-Apache-2.0
    https://github.com/get-convex/convex-backend/blob/main/LICENSE.md
  • Pricing model Freemium verified 2026-07-13

    Free tier + paid Professional ($25/dev/mo) and Business & Enterprise tiers; backend itself is also open source and self-hostable (OSS + paid hosting also applies).

    Free & Starter For personal projects and prototypes Free or $0/month and pay as you go
    https://www.convex.dev/pricing
  • Starts at $25/developer/month verified 2026-07-13
    Professional For startups moving from prototype to production $25 per developer/month
    https://www.convex.dev/pricing
  • Platforms Web, Linux verified 2026-07-13

    Cloud dashboard/app is web-based (Web); open-source backend can be self-hosted on your own Linux servers. Client SDKs additionally target React/React Native/iOS/Android/etc, but platform claim here is

    If you're excited about self-hosting, you can run the Convex backend on your own servers.
    https://docs.convex.dev/self-hosting
  • Status active verified 2026-07-13

    Actively developed/marketed product with current pricing, docs, and 2026 copyright notice on convex.dev.

    Get your app up and running in minutes
    https://www.convex.dev/pricing
  • Managed database Yes verified 2026-07-13
    The Convex database provides a relational data model, stores JSON-like documents, and can be used with or without a schema.
    https://docs.convex.dev/database
  • Auth built in Partial verified 2026-07-13

    Built-in Convex Auth library exists but is in beta and more commonly paired with third-party providers (Clerk, WorkOS AuthKit, Auth0) per the same page.

    For client-side React and React Native mobile apps you can implement auth directly in Convex with the Convex Auth library. ... Convex Auth is currently a beta feature.
    https://docs.convex.dev/auth
  • File / object storage Yes verified 2026-07-13
    File Storage makes it easy to implement file upload in your app, store files from and send files to third-party APIs, and to serve dynamic files to your users.
    https://docs.convex.dev/file-storage
  • Realtime subscriptions Yes verified 2026-07-13
    Turns out Convex is automatically realtime! ... Convex tracks the dependencies to your query functions, including database changes, and triggers the subscription in the client libraries.
    https://docs.convex.dev/realtime
  • Serverless / edge functions Yes verified 2026-07-13
    Functions run on the backend and are written in JavaScript (or TypeScript). They are automatically available as APIs accessed through client libraries.
    https://docs.convex.dev/functions
  • Auto-generated APIs Yes verified 2026-07-13

    Generated typed client API (api.js/api.d.ts) from your functions/schema via `npx convex dev`, not a REST-from-tables generator.

    Convex uses code generation to create code that is specific to your app's data model and API.
    https://docs.convex.dev/generated-api
  • Self-hostable Yes verified 2026-07-13
    Self-hosted Convex runs the open-source backend, and contains the same fully up-to-date code the cloud service uses.
    https://docs.convex.dev/self-hosting
  • Open source Yes verified 2026-07-13
    The Convex backend, client libraries, dashboard, and CLI are all open-source.
    https://docs.convex.dev/self-hosting
  • Client SDKs Yes verified 2026-07-13

    llms.txt lists additional quickstarts for Next.js, Remix, TanStack Start, React Native, Vue, Svelte, Node.js, Bun, Python, Android Kotlin, iOS Swift, Rust.

    Convex React is the client library enabling your React application to interact with your Convex backend.
    https://docs.convex.dev/client/react
  • Row-level security No verified 2026-07-13

    Access control is enforced in application code inside functions, not via SQL row-level security policies.

    Convex doesn't need an opinionated authorization framework like RLS, which is required in client oriented databases like Firebase or Supabase.
    https://docs.convex.dev/auth
  • Vector / AI support Yes verified 2026-07-13
    Vector search allows you to find Convex documents similar to a provided vector. ... Embeddings and vector search enable you to provide useful context to LLMs for AI powered applications.
    https://docs.convex.dev/search/vector-search
  • Free tier Yes verified 2026-07-13
    Free & Starter For personal projects and prototypes Free or $0/month and pay as you go
    https://www.convex.dev/pricing

FAQ

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

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