# Alembic

> Lightweight database migration tool for SQLAlchemy

- **Canonical URI:** https://www.vioscale.ai/software/alembic
- **Category:** ORM & Database Tools
- **Homepage:** https://alembic.sqlalchemy.org/
- **Also known as:** alembic
- **Profile claimed by vendor:** no
- **Last updated:** 2026-08-03T21:41:38.271Z

## Vioscale score

**55.8 / 100**, confidence 22% (low).

Composite of weighted, independently-sourced signals (no user reviews, no vendor payment).

| Signal | Score | Weight | Contribution | Evidence present |
|---|--:|--:|--:|:--:|
| capabilities | 67.1 | 16 | 1073.9 | ✓ |
| github_stars | 68.5 | 5 | 342.7 | ✓ |
| integrations | 0 | 8 | 0 | - |
| github_activity | 22 | 18 | 396.1 | ✓ |
| release_cadence | 92.2 | 10 | 922.2 | ✓ |
| security_posture | 0 | 13 | 0 | - |
| package_downloads | 0 | 26 | 0 | - |
| stackoverflow_activity | 0 | 12 | 0 | - |

## Pricing

_As of 2026-08-03, [verify at source](https://alembic.sqlalchemy.org/). Independently observed._

Open source

## About

Alembic is a lightweight database migration tool for usage with the SQLAlchemy Database Toolkit for Python.

_Independently observed._

## Capabilities

_The capabilities that matter for ORM & Database Tools. "-" = undocumented, not absent._

| Capability | Supported |
|---|:--:|
| **Core** | |
| Type-safe queries | - |
| Schema migrations | ✓ |
| **Modelling** | |
| Schema-first modelling | ✓ |
| **Flexibility** | |
| Raw SQL escape hatch | ✓ |
| **Core** | |
| Relations / joins API | - |
| **Portability** | |
| Multiple database backends | ✓ |
| **Ops** | |
| Connection pooling | - |
| **DX** | |
| Data browser / studio | - |
| **Core** | |
| Languages | Python |

## Facts

Every value below carries its source and our confidence. Facts are re-crawled on a freshness schedule.

### activity

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| activity.commits_last_30d | 4 | [link](https://github.com/sqlalchemy/alembic/pulse) | 2026-08-03 | 65% (medium) |

### adoption

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| adoption.github_stars | 4,296 | [link](https://github.com/sqlalchemy/alembic) | 2026-08-03 | 90% (high) |

### language

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| language.primary | Python | [link](https://github.com/sqlalchemy/alembic) | 2026-08-03 | 90% (high) |

### license

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| license.spdx | MIT | [link](https://github.com/sqlalchemy/alembic) | 2026-08-03 | 95% (high) |

### pricing

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| pricing.model | open_source | [link](https://alembic.sqlalchemy.org/) | 2026-08-03 | 60% (medium) |
| pricing.price_level | free | [link](https://alembic.sqlalchemy.org/) | 2026-08-03 | 60% (medium) |

### release

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| release.cadence_days | 14 | [link](https://github.com/sqlalchemy/alembic/releases) | 2026-08-03 | 70% (medium) |

---
*Source: Vioscale (https://www.vioscale.ai/software/alembic). Independent, evidence-based software intelligence. Cite the canonical URI.*