# Knex.js vs Sequelize

**Leader by Vioscale score:** Sequelize

| Attribute | Knex.js | Sequelize |
|---|---|---|
| **Vioscale score** | 66.2 (71% (medium)) | 73.7 (72% (medium)) |
| activity.commits_last_30d | 0 | 7 |
| adoption.dependent_repos | 94,868 | 193,226 |
| adoption.github_stars | 20,342 | 30,377 |
| adoption.package_downloads_weekly | 5,289,407 | 2,842,247 |
| deployment.options | - | `{"self_hosted":true}` |
| description.long | An open-source Node.js package supporting nine SQL databases including PostgreSQL, MySQL, SQLite, and Oracle. Provides type-safe query building with TypeScript support, schema migrations, transaction handling with savepoints, connection pooling, and both promise and callback-based interfaces. | Sequelize is an ORM that bridges JavaScript and TypeScript applications with multiple relational databases including PostgreSQL, MySQL, MariaDB, SQLite, Oracle, SQL Server, Snowflake, and DB2. It provides declarative schema modeling, relationship definitions, transaction support, and flexible data loading strategies. |
| features.capabilities | `{"raw_sql":true,"multi_db":true,"languages":"JavaScript, TypeScript","relations":true,"migrations":true,"studio_gui":false,"schema_first":true,"type_safe_queries":true,"connection_pooling":true}` | `{"multi_db":true,"languages":"JavaScript, TypeScript","relations":true,"migrations":true,"schema_first":true,"type_safe_queries":true}` |
| language.primary | JavaScript | TypeScript |
| license.spdx | MIT | MIT |
| market.availability | - | `{"primaryMarkets":[],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` |
| platform.support | - | `{"cli":true}` |
| pricing | `{"type":"open_source","sourceUrl":"https://knexjs.org","retrievedAt":"2026-08-14T08:34:17.530Z"}` | `{"type":"open_source","freeTier":true,"sourceUrl":"https://sequelize.org","retrievedAt":"2026-08-14T21:37:06.541Z"}` |
| pricing.free_tier | - | yes |
| pricing.model | open_source | commercial |
| pricing.price_level | free | free |
| pricing.transparent | - | yes |
| release.cadence_days | 28 | 20 |
| release.history | `[{"url":"https://github.com/knex/knex/releases/tag/3.3.0","date":"2026-06-26T14:55:58Z","type":"stable","version":"3.3.0"},{"url":"https://github.com/knex/knex/releases/tag/3.2.10","date":"2026-05-02T12:14:38Z","type":"stable","version":"3.2.10"},{"url":"https://github.com/knex/knex/releases/tag/3.2.9","date":"2026-04-03T20:25:30Z","type":"stable","version":"3.2.9"},{"url":"https://github.com/knex/knex/releases/tag/3.2.8","date":"2026-03-30T18:29:09Z","type":"stable","version":"3.2.8"},{"url":"https://github.com/knex/knex/releases/tag/3.2.7","date":"2026-03-30T18:28:52Z","type":"stable","version":"3.2.7"},{"url":"https://github.com/knex/knex/releases/tag/3.2.6","date":"2026-03-25T02:06:50Z","type":"stable","version":"3.2.6"},{"url":"https://github.com/knex/knex/releases/tag/3.2.3","date":"2026-03-22T22:38:07Z","type":"stable","version":"3.2.3"},{"url":"https://github.com/knex/knex/releases/tag/3.2.1","date":"2026-03-22T21:08:27Z","type":"stable","version":"3.2.1"},{"url":"https://github.com/knex/knex/releases/tag/3.2.0","date":"2026-03-22T17:37:15Z","type":"stable","version":"3.2.0"},{"url":"https://github.com/knex/knex/releases/tag/3.1.0","date":"2023-12-07T23:17:57Z","type":"stable","version":"3.1.0"},{"url":"https://github.com/knex/knex/releases/tag/3.0.1","date":"2023-10-06T12:23:40Z","type":"stable","version":"3.0.1"},{"url":"https://github.com/knex/knex/releases/tag/3.0.0","date":"2023-10-06T06:56:38Z","type":"stable","version":"3.0.0"},{"url":"https://github.com/knex/knex/releases/tag/2.5.1","date":"2023-07-12T21:26:26Z","type":"stable","version":"2.5.1"},{"url":"https://github.com/knex/knex/releases/tag/2.5.0","date":"2023-07-08T21:04:46Z","type":"stable","version":"2.5.0"},{"url":"https://github.com/knex/knex/releases/tag/2.4.2","date":"2023-03-29T11:15:20Z","type":"stable","version":"2.4.2"},{"url":"https://github.com/knex/knex/releases/tag/2.4.1","date":"2023-03-29T11:11:39Z","type":"stable","version":"2.4.1"},{"url":"https://github.com/knex/knex/releases/tag/2.4.0","date":"2023-01-06T15:45:16Z","type":"stable","version":"2.4.0"},{"url":"https://github.com/knex/knex/releases/tag/2.3.0","date":"2022-09-01T21:17:24Z","type":"stable","version":"2.3.0"},{"url":"https://github.com/knex/knex/releases/tag/2.2.0","date":"2022-07-18T21:26:26Z","type":"stable","version":"2.2.0"},{"url":"https://github.com/knex/knex/releases/tag/2.1.0","date":"2022-05-26T09:04:03Z","type":"stable","version":"2.1.0"}]` | `[{"url":"https://github.com/sequelize/sequelize/releases/tag/v6.37.8","date":"2026-03-07T18:44:44Z","type":"stable","version":"v6.37.8"},{"url":"https://github.com/sequelize/sequelize/releases/tag/v7.0.0-alpha.48","date":"2026-02-04T13:52:17Z","type":"prerelease","version":"v7.0.0-alpha.48"},{"url":"https://github.com/sequelize/sequelize/releases/tag/v7.0.0-alpha.47","date":"2025-10-25T08:02:02Z","type":"prerelease","version":"v7.0.0-alpha.47"},{"url":"https://github.com/sequelize/sequelize/releases/tag/v6.37.7","date":"2025-03-28T11:35:01Z","type":"stable","version":"v6.37.7"},{"url":"https://github.com/sequelize/sequelize/releases/tag/v7.0.0-alpha.46","date":"2025-03-22T20:59:50Z","type":"prerelease","version":"v7.0.0-alpha.46"},{"url":"https://github.com/sequelize/sequelize/releases/tag/v6.37.6","date":"2025-03-04T10:38:26Z","type":"stable","version":"v6.37.6"},{"url":"https://github.com/sequelize/sequelize/releases/tag/v7.0.0-alpha.45","date":"2025-02-17T13:59:21Z","type":"prerelease","version":"v7.0.0-alpha.45"},{"url":"https://github.com/sequelize/sequelize/releases/tag/v7.0.0-alpha.44","date":"2025-01-27T07:32:05Z","type":"prerelease","version":"v7.0.0-alpha.44"},{"url":"https://github.com/sequelize/sequelize/releases/tag/v6.37.5","date":"2024-10-25T12:30:39Z","type":"stable","version":"v6.37.5"},{"url":"https://github.com/sequelize/sequelize/releases/tag/v7.0.0-alpha.43","date":"2024-10-04T14:13:01Z","type":"prerelease","version":"v7.0.0-alpha.43"},{"url":"https://github.com/sequelize/sequelize/releases/tag/v6.37.4","date":"2024-10-04T14:21:15Z","type":"stable","version":"v6.37.4"},{"url":"https://github.com/sequelize/sequelize/releases/tag/v7.0.0-alpha.42","date":"2024-09-13T13:40:39Z","type":"prerelease","version":"v7.0.0-alpha.42"},{"url":"https://github.com/sequelize/sequelize/releases/tag/v7.0.0-alpha.41","date":"2024-05-17T14:56:35Z","type":"prerelease","version":"v7.0.0-alpha.41"},{"url":"https://github.com/sequelize/sequelize/releases/tag/v6.37.3","date":"2024-04-13T20:54:30Z","type":"stable","version":"v6.37.3"},{"url":"https://github.com/sequelize/sequelize/releases/tag/v7.0.0-alpha.40","date":"2024-04-11T17:31:50Z","type":"prerelease","version":"v7.0.0-alpha.40"},{"url":"https://github.com/sequelize/sequelize/releases/tag/v6.37.2","date":"2024-03-29T18:55:34Z","type":"stable","version":"v6.37.2"},{"url":"https://github.com/sequelize/sequelize/releases/tag/v7.0.0-alpha.39","date":"2024-03-22T17:25:56Z","type":"prerelease","version":"v7.0.0-alpha.39"},{"url":"https://github.com/sequelize/sequelize/releases/tag/v7.0.0-alpha.38","date":"2024-03-19T08:38:28Z","type":"prerelease","version":"v7.0.0-alpha.38"},{"url":"https://github.com/sequelize/sequelize/releases/tag/v7.0.0-alpha.37","date":"2024-02-10T13:55:26Z","type":"prerelease","version":"v7.0.0-alpha.37"},{"url":"https://github.com/sequelize/sequelize/releases/tag/v6.37.1","date":"2024-02-18T00:44:09Z","type":"stable","version":"v6.37.1"}]` |
| security.disclosure_policy | - | yes |
| security.scorecard | 5.7 | 6.7 |
| security.vulnerabilities | `{"count":2,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=npm&package_name=knex&per_page=100","last_12m":0,"max_severity":"CRITICAL"}` | `{"count":19,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=npm&package_name=sequelize&per_page=100","last_12m":2,"max_severity":"CRITICAL"}` |

## Capabilities (ORM & Database Tools)

| Capability | Knex.js | Sequelize |
|---|:--:|:--:|
| **Core** |  |  |
| Type-safe queries | ✓ | ✓ |
| Schema migrations | ✓ | ✓ |
| Relations / joins API | ✓ | ✓ |
| Languages | JavaScript, TypeScript | JavaScript, TypeScript |
| **Modelling** |  |  |
| Schema-first modelling | ✓ | ✓ |
| **Flexibility** |  |  |
| Raw SQL escape hatch | ✓ | - |
| **Portability** |  |  |
| Multiple database backends | ✓ | ✓ |
| **Ops** |  |  |
| Connection pooling | ✓ | - |
| **DX** |  |  |
| Data browser / studio | ✗ | - |

*Source: Vioscale. Generated 2026-09-01T16:36:32.952Z. "-" = undocumented, not absent.*