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ActiveTypo3-cms-extension[Utility & Helpers](/categories/utility)

denic/erd
=========

TYPO3 ERD Generator — backend module and CLI for generating ER diagrams from TCA

v4.6.0(1mo ago)110GPL-2.0-or-laterPHPPHP ^8.3CI passing

Since Aug 5Pushed 4w ago1 watchersCompare

[ Source](https://github.com/davdenic/erd-typo3)[ Packagist](https://packagist.org/packages/denic/erd)[ RSS](/packages/denic-erd/feed)WikiDiscussions main Synced 1w ago

READMEChangelogDependencies (4)Versions (43)Used By (0)

ERD Generator for TYPO3
=======================

[](#erd-generator-for-typo3)

Generate Entity-Relationship Diagrams from your TYPO3 TCA configuration. Outputs Mermaid diagrams with field details, relation cardinalities, and optional DB population stats.

Supports **TYPO3 11.5 – 14**.

Install
-------

[](#install)

```
ddev composer require denic/erd
```

No additional configuration needed — just install and use.

Backend Module
--------------

[](#backend-module)

Open the TYPO3 backend and go to **System → ERD Generator**.

1. Select an extension or pick individual tables
2. Set the relationship depth
3. Optionally enable DB population check
4. Click **Generate ERD**

Download the result as `.md` and open it in:

- [Obsidian](https://obsidian.md/) — renders Mermaid natively
- [Markdown Viewer](https://markdownviewer.pages.dev/) — online viewer
- **GitHub / GitLab** — renders Mermaid in Markdown automatically

CLI
---

[](#cli)

```
vendor/bin/typo3 erd:generate --extension=my_ext
vendor/bin/typo3 erd:generate --extension=my_ext --output=docs/erd.md --check-db
vendor/bin/typo3 erd:generate --list-extensions
vendor/bin/typo3 erd:generate --list-tables
```

License
-------

[](#license)

GPL-2.0-or-later

###  Health Score

49

—

FairBetter than 94% of packages

Maintenance94

Actively maintained with recent releases

Popularity9

Limited adoption so far

Community7

Small or concentrated contributor base

Maturity71

Established project with proven stability

 Bus Factor1

Top contributor holds 100% of commits — single point of failure

How is this calculated?**Maintenance (25%)** — Last commit recency, latest release date, and issue-to-star ratio. Uses a 2-year decay window.

**Popularity (30%)** — Total and monthly downloads, GitHub stars, and forks. Logarithmic scaling prevents top-heavy scores.

**Community (15%)** — Contributors, dependents, forks, watchers, and maintainers. Measures real ecosystem engagement.

**Maturity (30%)** — Project age, version count, PHP version support, and release stability.

###  Release Activity

Cadence

Every ~35 days

Recently: every ~0 days

Total

30

Last Release

30d ago

Major Versions

v3.4.0 → v4.3.02026-05-09

v1.3.1 → v4.3.12026-05-09

v1.5.0 → v2.7.02026-05-10

v2.7.0 → v3.6.02026-05-10

v3.6.0 → v4.5.02026-05-10

PHP version history (3 changes)v1.1.1PHP ^7.4 || ^8.0

v2.3.0PHP ^8.2

v4.1.0PHP ^8.3

### Community

Maintainers

![](https://www.gravatar.com/avatar/b0accfb60bea803513722e6f78ef5111ca092c507435fabd5f447601c84ea3f6?d=identicon)[davdenic](/maintainers/davdenic)

---

Top Contributors

[![davdenic](https://avatars.githubusercontent.com/u/2589484?v=4)](https://github.com/davdenic "davdenic (69 commits)")

###  Code Quality

TestsPHPUnit

### Embed Badge

![Health badge](/badges/denic-erd/health.svg)

```
[![Health](https://phpackages.com/badges/denic-erd/health.svg)](https://phpackages.com/packages/denic-erd)
```

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