Current documented limits
| Constraint | Current value | Scope | Verified source |
|---|---|---|---|
| compute max_connectionsSmaller computes expose lower direct PostgreSQL connection capacity. | Compute-size dependent, up to 4,000 | Per compute | NeonAug 22, 2026 |
| pooled concurrent clientsPooler clients are not the same as backend PostgreSQL sessions. | Up to 10,000 | Neon connection pooler | NeonAug 22, 2026 |
| included monthly transferNeon documents compute suspension when the free transfer allowance is exceeded. | 5 GB per month | Free | NeonAug 22, 2026 |
| local file cacheThe cache is tied to compute memory rather than persistent database storage. | 75% of compute RAM | Neon computes | NeonAug 22, 2026 |
How to apply Neon limits safely
The monitored baseline covers compute max_connections, pooled concurrent clients, included monthly transfer, local file cache. Treat these as separate constraints rather than one platform-wide capacity number: a workload can fit one row and still fail another because the plan, model, endpoint, runtime, region, invocation mode, or account scope differs.
- Match the production workload to the exact scope printed beside each value and confirm it in the active Neon console, configuration, or response headers.
- Measure the serialized request, token volume, duration, concurrency, storage, or connection demand at realistic percentiles, then preserve headroom for bursts and retries.
- Check every adjacent layer—client, SDK, gateway, proxy, queue, database, and downstream service—for a smaller effective limit before changing architecture.
Specific limit pages
These pages exist because the constraint has a distinct implementation or troubleshooting intent. Closely related keyword variations stay consolidated.
Neon Direct Connection Limits
Neon Direct Connection Limits, verified against Neon's official documentation with scope, implementation impact, caveats, and a direct check.
Neon Pooled Connection Limits
Neon Pooled Connection Limits, verified against Neon's official documentation with scope, implementation impact, caveats, and a direct check.
Neon Free Plan Network Transfer
Neon Free Plan Network Transfer, verified against Neon's official documentation with scope, implementation impact, caveats, and a direct check.
Neon Local File Cache Allocation
Neon Local File Cache Allocation, verified against Neon's official documentation with scope, implementation impact, caveats, and a direct check.
Compare alternatives
Neon vs Supabase Connection Limits
Neon vs Supabase Connection Limits using the same verified structured observations as each underlying limit page, with scope and comparability caveats.
MongoDB Atlas vs Neon Free Limits
MongoDB Atlas vs Neon Free Limits using the same verified structured observations as each underlying limit page, with scope and comparability caveats.