Can I vibecode Convex?

NOT REALLY · don't bother
price variesbuild time not a true replacement; consolation build in one to two dayscategory ☁️ hostingreplaced by 1 people

Do not mistake the interface for the product. Convex's durable value is infrastructure, uptime, operations, which a solo one-shot build cannot reproduce responsibly. The prompt therefore builds only the closest honest personal consolation tool.

the prompt
Build the closest honest consolation tool inspired by Convex; do not claim to replace its structural moat.
Use exactly this stack: Go 1.24 + Docker + SQLite.
Primary job: Build a single-server deployment panel for one user that accepts a repository, builds a container, deploys it, shows logs, and supports rollback.
Start from an empty folder and create the complete working project.
Make the default mode single-user and private.
Store user data locally unless the core job requires the declared self-hosted database.
Do not add analytics, telemetry, ads, or third-party accounts.
Put every secret and external credential in .env and provide .env.example.
Use realistic sample data that is clearly labelled and easy to delete.
Implement the smallest polished interface that completes the core loop end to end.
Include clear empty, loading, validation, success, and failure states.
Add import and export so the user is not trapped in the app.
Use accessible keyboard navigation, labels, focus states, and sensible contrast.
Validate untrusted input and never log secrets or private file contents.
Deliberately exclude these paid-product advantages: 24-hour operations and support; managed global infrastructure; multi-region failover.
Do not fake integrations, network effects, proprietary data, model quality, compliance, or security claims.
Where an external API is optional, keep the app useful without it and explain the degraded mode.
Write focused unit tests for the data model and the most important workflow.
Add one end-to-end smoke test that proves the core loop works.
Create a README with setup, permissions, architecture, data location, backup, and limitations.
Add scripts for install, development, test, build, and a production-style local run.
Run the tests and build before finishing, then fix errors rather than merely describing them.

$ open in your agent (prompt prefilled, you press enter) or copy it raw · this prompt is generated from the build plan · improve it via PR

why people still pay

Convex: Managed hosting sells a failure domain, on-call team, network, backups, and capacity planning, not merely a deploy button.

what you lose

x24-hour operations and support

xmanaged global infrastructure

xmulti-region failover

xDDoS protection and compliance

share on X ↗"I just replaced Convex with one prompt"
the escape hatch

Don't feel like building it? These folks already made it free.

SupabaseDatabase, functions, realtime, files, and auth in one self-hosted stack; SQL replaces Convex's document model.108kaug 2026open sourceAppwriteAuth, database, storage, realtime, and functions behind one polished console; the Compose file is doing a lot.57kaug 2026open sourceNhostPostgres plus GraphQL, auth, storage, functions, and realtime; closer to Firebase than most Firebase alternatives.9.3kaug 2026open source

all 4 free alternatives to Convex →· no votes, no pay-to-list · just what's real

the numbers

Convex pricing

planmonthlyannual (per mo)what you get
free$0/workspace$0/workspace1-6 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/workspaceSame free included quotas and 1-6 developers/40 deployments, then pay as you go above them.
professional$25/user1-20 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 ↗

questions
Can I vibecode Convex?

Not really. Convex's value is not the code: . See the honest breakdown above.

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 4 curated free alternatives are at canivibecodeit.com/convex/alternatives. The prompt is for when you want it exactly your way.

Every week, more subscriptions die.

Five vibe-coding tips, the prompts behind them, and the week's verdicts.
One email, thursdays. Unsubscribe in one click.

free forever · the prompts stay on the site, the tips come to you

$five vibe-coding tips + what died. thursdays.