Migrations
Moving from Airtable to Supabase or Postgres
Airtable is quick to start on. Teams move when record limits, per-seat pricing or app needs push past what a base handles well.
Last reviewed 14 November 2026
Move from Airtable to Supabase or Postgres when bases approach record or API limits, when per-seat cost grows with people who only view data, or when you need outside users, complex permissions or a real application on top. Export tables, model them as relational tables, rebuild automations, and run both in sync until the cut over. Stay on Airtable if the base is small and the team edits structure often.
Who this is for
Teams whose Airtable base now runs a core process, with tens of thousands of records, many collaborators or a customer-facing app.
Signs it is time to move
- Record or API rate limits slow automations or syncs
- Paying per seat for people who only need to read
- Linked records and lookups make the base slow
- Need for row-level permissions or outside users
- Reporting needs SQL that Airtable cannot run
What it costs on each side
Airtable is priced per seat with record limits by plan. Supabase is priced by project and usage, and self-hosted Postgres by server. Neither vendor page was verified for this guide, so we compare them against your own seat count and record volume during the audit.
The migration plan, step by step
- 01
Inventory
List bases, tables, fields, automations, interfaces and every integration that reads or writes Airtable.
- 02
Map
Design relational tables with keys, turn linked records into foreign keys and lookups into views or queries, and plan row-level security.
- 03
Rebuild
Create the schema, migrate data with a repeatable script, and rebuild automations in n8n or database functions and the screens in Retool or code.
- 04
Parallel run
Sync Airtable to the database on a schedule while the new app is tested by a small group.
- 05
Cut over
Run a final sync, set the base to read-only and switch integrations to the new database.
- 06
Monitor
Check counts and key totals daily for two weeks, then archive the base.
Risks and how we avoid them
| Risk | How we avoid it |
|---|---|
| Attachments stored in Airtable expire or are left behind. | Copy files into Supabase Storage or your own bucket as part of the migration script. |
| Formula and rollup fields return different results in SQL. | Compare a sample of computed fields side by side before cut over. |
| Integrations still writing to Airtable after the switch. | List every API key and integration in the inventory and revoke Airtable tokens at cut over. |
What we do and what it costs
The $500 audit maps the base and gives one fixed price, credited to the build. Most Airtable moves with a new interface are internal tool builds from $3k or multi-module systems from $5k. Care plans from $50 a month cover the database and app after go-live.
Questions
Supabase or plain Postgres?
Supabase is Postgres with auth, storage and an API added, which saves building those. Plain Postgres suits teams with an existing backend or strict hosting rules.
Can our team still edit data like a spreadsheet?
Yes. We build table views in Retool or the app, and Supabase has a table editor for admins.
How long does it take?
A base of a few tables moves in two to three weeks. Larger bases with many automations take four to eight.
Related: Airtable, Supabase, Postgres, Airtable vs Supabase, Airtable and Retool automation, Modernise service, comparisons. All migrations.
We will tell you whether the move pays before you start
The audit lists what you run today, ranks it by cost and risk, and ends in one fixed price for the migration, credited to the build.
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