Can I open-source Convex?
YES · mature open-source replacementYes. Supabase (108k stars), Appwrite (57k stars), Coolify (45k stars) are mature open-source replacements for Convex — self-host with real ops work and stop paying.
Convex: Managed hosting sells a failure domain, on-call team, network, backups, and capacity planning, not merely a deploy button.
x24-hour operations and support
xmanaged global infrastructure
xmulti-region failover
xDDoS protection and compliance
These projects already replace it, free.
SSupabaseDatabase, functions, realtime, files, and auth in one self-hosted stack; SQL replaces Convex's document model.open source↗AAppwriteAuth, database, storage, realtime, and functions behind one polished console; the Compose file is doing a lot.open source↗NNhostPostgres plus GraphQL, auth, storage, functions, and realtime; closer to Firebase than most Firebase alternatives.open source↗What each one is, in full: Supabase · Appwrite · Nhost
all 6 open-source alternatives to Convex →· no votes, no pay-to-list · just what's real
Convex pricing
| plan | monthly | annual (per mo) | what you get |
|---|---|---|---|
| free | $0/workspace | $0/workspace | 1-6 developers; 40 deployments; 0.5 GB database; 1 GB database I/O/month; 1M function calls/month; 20 action GB-hours; 1 GB files and 1 GB egress. |
| starter | $0/workspace | — | Same free included quotas and 1-6 developers/40 deployments, then pay as you go above them. |
| professional | $25/user | — | 1-20 developers; 300 deployments; 25M function calls; 250 action GB-hours; 50 GB database storage and I/O; 100 GB files; 50 GB egress. |
| business / enterprise | $2500/workspace | — | $2,500 monthly minimum with custom included allocations and dedicated terms. |
free tier1-6 developers, 40 deployments, 0.5 GB database, 1 GB database I/O/month, 1M function calls/month, 20 action GB-hours, 1 GB files and 1 GB egress
billingFree and Starter have no base fee; Professional is monthly; annual commitment discounts are limited to Business/Enterprise
hidden costsOverages meter each resource separately. Starter rates include $2.20/M calls, $0.33/action-GB-hour, $0.22/GB database storage, $0.033/GB files and $0.132/GB egress; Professional rates are lower. EU-region usage is priced at 1.3x US.
verified 2026-08-14 · source ↗
Can I open-source Convex?
Yes. Supabase replaces Convex today — self-host it on your own server or machine with no subscription. The full list of open-source alternatives is on this page.
How much does Convex cost?
Convex's pricing is usage-based or varies by plan · The pricing model is not safely comparable as one fixed monthly USD amount. Review the official source before publication..
What do I lose by replacing Convex?
Honestly: 24-hour operations and support; managed global infrastructure; multi-region failover; DDoS protection and compliance. If any of those are load-bearing for you, keep paying.
Is there an open-source alternative to Convex?
Yes: Supabase (Database, functions, realtime, files, and auth in one self-hosted stack; SQL replaces Convex's document model.) Appwrite (Auth, database, storage, realtime, and functions behind one polished console; the Compose file is doing a lot.) Nhost (Postgres plus GraphQL, auth, storage, functions, and realtime; closer to Firebase than most Firebase alternatives.) All 6 curated open-source alternatives are at caniopensourceit.online/convex/alternatives.