Convex alternatives: 5 apps ranked by verified data
Common reasons people leave Convex: proprietary programming model makes migrating away costly, and per-developer pricing on the Professional plan. We ranked 5 alternatives by how directly each one replaces Convex, then by reviews, real visits and how recently each app's facts were checked against its own website. Firebase currently ranks first.
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Show all 5 alternativesThe best Convex alternative for…
The highest-ranked app in this list for each need.
Best Convex alternative for most people
FirebaseRealtime sync with a far bigger ecosystem and mobile tooling.
Best Convex alternative for a free option
InstantDBSimilar realtime, client-first model with an open-source engine you can self-host.
Best Convex alternative for a free plan you can upgrade
SupabaseSQL and Postgres if you prefer a standard database you can take elsewhere.
Best Convex alternative for open source
AppwriteOpen-source backend with conventional REST and SDK APIs instead of a custom model.
Best Convex alternative for self-hosting
SupabaseSQL and Postgres if you prefer a standard database you can take elsewhere.
Best Convex alternative for iPhone and Android
FirebaseRealtime sync with a far bigger ecosystem and mobile tooling.
Best Convex alternative for working in the browser
GadgetAnother TypeScript-centric hosted backend with built-in hosting and integrations.
Convex alternatives: common questions
What is the best alternative to Convex?
Firebase ranks first right now. Realtime sync with a far bigger ecosystem and mobile tooling. Supabase and InstantDB follow it in our ranking.
Is there a free alternative to Convex?
Yes. Firebase (free plan + paid), Supabase (free plan + paid), InstantDB (open source) and Appwrite (open source) have a free option. Check each app's verified facts for current plan limits.
Is there an open-source alternative to Convex?
Yes: Supabase, InstantDB and Appwrite. Supabase, InstantDB and Appwrite can also be self-hosted.
Why do people switch from Convex?
The complaints we hear most: proprietary programming model makes migrating away costly; per-developer pricing on the Professional plan; self-hosting is possible but less documented than the cloud.
How is this list ranked?
Every app is scored with the same published formula: how directly it replaces Convex, reviews (weighted by verification), visits from AppBreakup, how recently its facts were checked against its own website, and reader votes.