Replit rescue
Replit Agent built it. We'll make it production-ready.
If Replit Agent built your app and it runs in the workspace but not in a Deployment — or the secrets vanished, or you can't tell which database is real, or the bill doubled — AI Cubed audits the project in two business days, gets the deployment right, and ships it. We'll tell you honestly whether to stay on Replit or move. Most rescues take two to four weeks.
Written by
AI Cubed
Last updated
September 9, 2026
Replit's workspace hides a lot of the machinery of running software, which is what makes it fast. Production is where the machinery comes back.
2 days
audit of workspace and deployment
2–4 wks
most Replit rescues
Yours
database, secrets, domain — named
Sounds familiar?
- "It runs when I press Run. The Deployment shows an error page."
- "I added the API key in Secrets. The deployed app says it's undefined."
- "Is my data in Replit's database, or Supabase, or both? I genuinely don't know."
- "The agent rolled back to a checkpoint and lost a day of my changes."
- "My bill went up and I can't tell which part of the app is costing money."
- "I want to leave Replit and I don't know what I'd be taking with me."
What breaks in Replit Agent apps specifically — and what we do
| What breaks | Why it happens on Replit | What we do |
|---|---|---|
| Works in workspace, fails in Deployment | Deployments use their own build and run commands, expect the server to bind to the exposed port, and don't inherit everything the workspace had. | Set explicit build and run commands, bind to the right host and port, confirm the deployment type (Autoscale, Reserved VM, Static) matches how the app behaves. |
| Secrets undefined in production | Workspace secrets and deployment secrets are configured separately; one was set, the other wasn't. | Inventory every secret, set them per environment, remove any that were hard-coded as a workaround, rotate anything that was ever in a file. |
| Database confusion | The agent may have used Replit's built-in Postgres, a key-value store, and an external database at different points. | Identify the real source of truth, migrate anything stranded, capture the schema as migrations, and put the database in an account you own. |
| Checkpoint rollbacks losing work | Agent checkpoints are not version control. A rollback can discard changes made outside the agent. | Real git history with branches; checkpoints stay as a convenience, never the only copy. |
| Auth that only works on the replit.app domain | Callback and site URLs were configured for the default domain, not your custom one. | Configure auth per environment, set custom-domain callbacks, test every flow on the real domain. |
| Cost surprises | Autoscale deployments, always-on workspaces and external API calls with no limits. | Right-size the deployment type, add rate limits and caching on paid API calls, put a budget alert in place. |
| Nix / dependency drift | The workspace environment evolved by hand; the deployment builds from what's declared, which differs. | Declare dependencies explicitly, pin versions, make the build reproducible from the repo. |
Stay on Replit, or move?
| Consideration | Stay on Replit Deployments | Move to Vercel / Cloudflare / Fly + Supabase |
|---|---|---|
| Speed to fix | Fastest — the app already lives there | A few extra days to migrate |
| Ownership and portability | Fine if the repo and database are exported and in your name | Clearer separation of code, data and hosting |
| Cost at low traffic | Predictable for small apps | Often lower; generous free tiers |
| Cost at real traffic | Autoscale can surprise without limits | More knobs, more predictable |
| Team and CI workflow | Adequate | Standard — any engineer knows it |
| Our usual recommendation | Stay if launching this month and traffic is modest | Move if you're raising, hiring engineers, or scaling |
How we work on a Replit project
- Audit — two business days. Invite us to the Repl or give repo access; we review workspace, deployment, secrets, database and costs. Written report, stay-or-move recommendation, fixed quote.
- Stabilise — first week. Deployment working, secrets correct, database identified and owned, git history established.
- Complete — weeks two to four. Migrations, error handling, tests on the money paths, custom-domain auth, cost controls, missing features.
- Hand over — everything in your name with a runbook; Replit Agent still usable for new work against a repo that now protects you.
How long and how pricing works
Audit in two business days; most Replit rescues live in two to four weeks, a little longer if we migrate hosting. Fixed-price audit, fixed quote, no hourly meter.
Frequently asked questions
Related
Read nextStuck on a vibe-coded app? We'll finish it and get it live.→Read nextBolt.new app stopped working? We'll stabilise and ship it.→Read nextNon-technical founder with an AI-built MVP? Here's your dev partner.→Read nextReplit Agent to production: from workspace to a deployment that stays up→Read nextWhat it costs to finish a vibe-coded app in 2026 (real ranges, and the arithmetic behind them)→Read next/tools/vibe-code-audit→
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