# PostGraphile vs Relay

**Leader by Vioscale score:** Relay

| Attribute | PostGraphile | Relay |
|---|---|---|
| **Vioscale score** | 56 (54% (medium)) | 71.4 (57% (medium)) |
| activity.commits_last_30d | 100 | 72 |
| adoption.dependent_repos | 501 | 76,213 |
| adoption.github_stars | 12,929 | 18,956 |
| adoption.package_downloads_weekly | 116,682 | 5,142,504 |
| deployment.options | `{"self_hosted":true}` | `{"self_hosted":true}` |
| description.long | An open-source tool that generates GraphQL APIs directly from PostgreSQL databases, with emphasis on performance and customizability. The generated API can be extended and modified to meet specific application needs. | An open-source framework that enables type-safe GraphQL queries in JavaScript applications, with built-in support for caching, error handling, and server-side rendering via React Server Components. |
| features.capabilities | `{"role":"db_to_graphql","language":"JavaScript/TypeScript","self_hostable":true,"schema_approach":"introspection","type_generation":true,"db_introspection":true}` | `{"role":"client","caching":true,"language":"JavaScript / TypeScript","federation":false,"managed_cloud":false,"self_hostable":true,"subscriptions":true,"auth_directives":false,"schema_approach":"code_first","type_generation":true,"db_introspection":false}` |
| integrations.count | 1 | - |
| integrations.list | `[{"name":"PostgreSQL"}]` | - |
| language.primary | TypeScript | Rust |
| license.spdx | MIT | MIT |
| market.availability | `{"primaryMarkets":["US"],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` | `{"primaryMarkets":[],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` |
| platform.support | `{"web":true}` | `{"cli":true,"web":true}` |
| pricing | `{"type":"open_source","plans":[{"free":true,"name":"Core (Open Source)","description":"Self-hosted GraphQL API generation from PostgreSQL","contactSales":false},{"free":false,"name":"On-Demand Consultancy","components":[{"kind":"one_time","amount":375,"currency":"USD"}],"description":"One hour of voice/screensharing with maintainer","contactSales":false},{"free":false,"name":"Development Support","components":[{"kind":"fixed","amount":999,"period":"month","currency":"USD"}],"description":"One-to-one access to Graphile team throughout the year; priority support via chat","contactSales":true}],"summary":"Open source and free. Professional support from $999/month.","freeTier":true,"sourceUrl":"https://www.graphile.org/postgraphile/","retrievedAt":"2026-08-14T16:37:12.955Z","startingPrice":{"amount":375,"period":"month","currency":"USD"}}` | `{"type":"open_source","summary":"Free and open-source","freeTier":true,"sourceUrl":"https://relay.dev","retrievedAt":"2026-08-14T16:35:58.790Z"}` |
| pricing.free_tier | yes | yes |
| pricing.model | open_source | commercial |
| pricing.price_level | free | free |
| pricing.transparent | yes | - |
| release.cadence_days | - | 47 |
| release.history | `[{"url":"https://github.com/graphile/crystal/releases/tag/postgraphile%405.1.4","date":"2026-08-05T13:36:30Z","type":"stable","version":"postgraphile@5.1.4"},{"url":"https://github.com/graphile/crystal/releases/tag/grafast%401.1.2","date":"2026-08-05T13:36:32Z","type":"stable","version":"grafast@1.1.2"},{"url":"https://github.com/graphile/crystal/releases/tag/postgraphile%405.1.3","date":"2026-08-04T07:44:26Z","type":"stable","version":"postgraphile@5.1.3"},{"url":"https://github.com/graphile/crystal/releases/tag/graphile-build-pg%405.1.3","date":"2026-08-04T07:44:29Z","type":"stable","version":"graphile-build-pg@5.1.3"},{"url":"https://github.com/graphile/crystal/releases/tag/grafast%401.1.1","date":"2026-08-04T07:44:32Z","type":"stable","version":"grafast@1.1.1"},{"url":"https://github.com/graphile/crystal/releases/tag/postgraphile%405.1.2","date":"2026-07-29T07:07:04Z","type":"stable","version":"postgraphile@5.1.2"},{"url":"https://github.com/graphile/crystal/releases/tag/graphile-build%405.1.1","date":"2026-07-29T07:07:01Z","type":"stable","version":"graphile-build@5.1.1"},{"url":"https://github.com/graphile/crystal/releases/tag/graphile-build-pg%405.1.2","date":"2026-07-29T07:07:07Z","type":"stable","version":"graphile-build-pg@5.1.2"},{"url":"https://github.com/graphile/crystal/releases/tag/postgraphile%405.1.1","date":"2026-07-22T10:38:15Z","type":"stable","version":"postgraphile@5.1.1"},{"url":"https://github.com/graphile/crystal/releases/tag/graphile-utils%405.0.3","date":"2026-07-22T10:38:12Z","type":"stable","version":"graphile-utils@5.0.3"},{"url":"https://github.com/graphile/crystal/releases/tag/graphile-build-pg%405.1.1","date":"2026-07-22T10:38:09Z","type":"stable","version":"graphile-build-pg@5.1.1"},{"url":"https://github.com/graphile/crystal/releases/tag/%40dataplan/pg%401.1.1","date":"2026-07-22T10:38:06Z","type":"stable","version":"@dataplan/pg@1.1.1"},{"url":"https://github.com/graphile/crystal/releases/tag/ruru%402.0.1","date":"2026-07-13T14:39:46Z","type":"stable","version":"ruru@2.0.1"},{"url":"https://github.com/graphile/crystal/releases/tag/postgraphile%405.1.0","date":"2026-07-13T14:39:40Z","type":"stable","version":"postgraphile@5.1.0"},{"url":"https://github.com/graphile/crystal/releases/tag/pgl%405.0.1","date":"2026-07-13T14:40:13Z","type":"stable","version":"pgl@5.0.1"},{"url":"https://github.com/graphile/crystal/releases/tag/graphile%405.1.0","date":"2026-07-13T14:39:58Z","type":"stable","version":"graphile@5.1.0"},{"url":"https://github.com/graphile/crystal/releases/tag/graphile-utils%405.0.2","date":"2026-07-13T14:40:07Z","type":"stable","version":"graphile-utils@5.0.2"},{"url":"https://github.com/graphile/crystal/releases/tag/graphile-config%401.1.0","date":"2026-07-13T14:39:37Z","type":"stable","version":"graphile-config@1.1.0"},{"url":"https://github.com/graphile/crystal/releases/tag/graphile-build%405.1.0","date":"2026-07-13T14:40:10Z","type":"stable","version":"graphile-build@5.1.0"},{"url":"https://github.com/graphile/crystal/releases/tag/graphile-build-pg%405.1.0","date":"2026-07-13T14:39:55Z","type":"stable","version":"graphile-build-pg@5.1.0"}]` | `[{"url":"https://github.com/facebook/relay/releases/tag/v21.0.1","date":"2026-05-27T17:05:47Z","type":"stable","version":"v21.0.1"},{"url":"https://github.com/facebook/relay/releases/tag/v21.0.0","date":"2026-05-18T22:35:02Z","type":"stable","version":"v21.0.0"},{"url":"https://github.com/facebook/relay/releases/tag/v20.1.1","date":"2025-08-06T23:45:00Z","type":"stable","version":"v20.1.1"},{"url":"https://github.com/facebook/relay/releases/tag/v20.1.0","date":"2025-07-28T18:02:48Z","type":"stable","version":"v20.1.0"},{"url":"https://github.com/facebook/relay/releases/tag/v20.0.0","date":"2025-06-14T01:18:21Z","type":"stable","version":"v20.0.0"},{"url":"https://github.com/facebook/relay/releases/tag/v19.0.0","date":"2025-05-02T21:35:03Z","type":"stable","version":"v19.0.0"},{"url":"https://github.com/facebook/relay/releases/tag/v18.2.0","date":"2024-11-21T18:42:55Z","type":"stable","version":"v18.2.0"},{"url":"https://github.com/facebook/relay/releases/tag/v18.1.0","date":"2024-10-04T21:25:48Z","type":"stable","version":"v18.1.0"},{"url":"https://github.com/facebook/relay/releases/tag/v18.0.0","date":"2024-09-07T01:12:44Z","type":"stable","version":"v18.0.0"},{"url":"https://github.com/facebook/relay/releases/tag/v17.0.0","date":"2024-06-14T23:56:58Z","type":"stable","version":"v17.0.0"},{"url":"https://github.com/facebook/relay/releases/tag/v16.2.0","date":"2024-01-23T16:49:06Z","type":"stable","version":"v16.2.0"},{"url":"https://github.com/facebook/relay/releases/tag/v16.1.0","date":"2023-12-11T20:21:51Z","type":"stable","version":"v16.1.0"},{"url":"https://github.com/facebook/relay/releases/tag/v16.0.0","date":"2023-10-19T22:38:09Z","type":"stable","version":"v16.0.0"},{"url":"https://github.com/facebook/relay/releases/tag/v15.0.0","date":"2023-03-08T22:16:55Z","type":"stable","version":"v15.0.0"},{"url":"https://github.com/facebook/relay/releases/tag/v14.1.0","date":"2022-07-27T17:37:43Z","type":"stable","version":"v14.1.0"},{"url":"https://github.com/facebook/relay/releases/tag/v14.0.0","date":"2022-06-08T15:11:54Z","type":"stable","version":"v14.0.0"},{"url":"https://github.com/facebook/relay/releases/tag/v13.2.0","date":"2022-03-10T18:08:49Z","type":"stable","version":"v13.2.0"},{"url":"https://github.com/facebook/relay/releases/tag/v13.1.1","date":"2022-02-09T18:02:09Z","type":"stable","version":"v13.1.1"},{"url":"https://github.com/facebook/relay/releases/tag/v13.1.0","date":"2022-02-08T16:53:14Z","type":"stable","version":"v13.1.0"},{"url":"https://github.com/facebook/relay/releases/tag/v13.0.3","date":"2022-02-07T21:41:14Z","type":"stable","version":"v13.0.3"}]` |
| reliability.status_page | yes | - |
| security.scorecard | - | 5.8 |
| security.vulnerabilities | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=npm&package_name=pg-sql2&per_page=100","last_12m":0,"max_severity":null}` | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=npm&package_name=relay-runtime&per_page=100","last_12m":0,"max_severity":null}` |

## Capabilities (GraphQL Tools)

| Capability | PostGraphile | Relay |
|---|:--:|:--:|
| **Core** |  |  |
| Role | DB-to-GraphQL | Client |
| Primary language | JavaScript/TypeScript | JavaScript / TypeScript |
| **Modelling** |  |  |
| Schema approach | DB introspection | Code-first |
| **Scale** |  |  |
| Federation / subgraph composition | - | ✗ |
| **Realtime** |  |  |
| Real-time subscriptions | - | ✓ |
| **Performance** |  |  |
| Response / edge caching | - | ✓ |
| **DX** |  |  |
| Typed code generation | ✓ | ✓ |
| **Automation** |  |  |
| Generates API from a database | ✓ | ✗ |
| **Security** |  |  |
| Built-in authz / permissions | - | ✗ |
| **Deployment** |  |  |
| Official hosted offering | - | ✗ |
| Self-hostable | ✓ | ✓ |

*Source: Vioscale. Generated 2026-09-01T14:40:07.960Z. "-" = undocumented, not absent.*