# Install eralchemy with Homebrew, dnf Simple entity relation (ER) diagrams generation. Version 1.7.0 via Homebrew; verified 2026-05-06. ## Install ```sh sudo av install brew:eralchemy ``` Additional install commands: ### macOS - Homebrew (100%): ```sh brew install eralchemy ``` Evidence: local Homebrew formula metadata ### Linux - dnf (92%): ```sh sudo dnf install eralchemy ``` Evidence: Fedora Rawhide package metadata: eralchemy from https://dl.fedoraproject.org/pub/fedora/linux/development/rawhide/Everything/x86_64/os/repodata/e5ca8ce900cd68f5419e1c39ae517343100b306336cbaeb70a3c153121d95094-primary.xml.zst ## Package facts - **Package key:** brew:eralchemy - **Package manager:** Homebrew - **Package manager page:** - **Version:** 1.7.0 - **Source summary:** Simple entity relation (ER) diagrams generation - **Homepage:** - **Repository:** - **Upstream docs:** - **License:** Apache-2.0 - **Source archive:** - **Last updated:** 2026-05-06T15:32:25Z - **Generated:** 2026-07-08T07:18:31+00:00 ## Executables - eralchemy (cli) - eralchemy (alias) ## Dependencies - graphviz - libpq - openssl@3 - python@3.14 ## Build dependencies - pkgconf ## Install behavior - Post-install hook: not defined - Bottle: available on arm64_linux, arm64_sequoia, arm64_sonoma, arm64_tahoe, sonoma, x86_64_linux ## Freshness - Page generated: 2026-07-08 - Package-manager version: 1.7.0 - Package-manager updated: 2026-05-06 - Local data: ok - Upstream repository: https://github.com/eralchemy/eralchemy - info: No cached GitHub release or tag data was available. ## Project history and usage ERAlchemy is a Python command-line and library tool for generating entity-relationship diagrams from live databases, SQLAlchemy models, or its own markdown-like ER representation. ### Project history The official repository was created in 2015 and published a 1.0.0 GitHub release later that year. Its README says the tool was inspired by BurntSushi's `erd`, but differs by rendering diagrams directly from databases rather than only from ER markup. ### Adoption history ERAlchemy's adoption is mostly in the Python database-tooling niche: the README emphasizes pip, conda-forge, SQLAlchemy URLs, Graphviz output, and command-line generation. Homebrew and Fedora packaging make it convenient outside Python-only workflows, but the project remains a focused documentation and schema-visualization utility rather than a broad platform. ### How it is used Common usage is `eralchemy -i DATABASE_URL -o diagram.pdf` or rendering from SQLAlchemy metadata in Python. The README also documents markdown input, Graphviz or PyGraphviz backends, Mermaid ER output, filtering tables or columns, and schema selection for PostgreSQL. ### Why package nerds care Package nerds care about ERAlchemy because it bridges Python packaging, system Graphviz dependencies, database drivers, and CLI ergonomics. It is a small example of why Homebrew-style formulas matter for Python tools that need native graph-rendering support. ### Timeline - 2015: The GitHub repository was created. - 2015: Version 1.0.0 was published on GitHub releases. - 2020s: The README documents Graphviz/PyGraphviz backends, conda-forge packaging, Mermaid ER output, and SQLAlchemy-based database URLs. ### Related projects - ERAlchemy is related to SQLAlchemy, Graphviz, PyGraphviz, Mermaid ER diagrams, and BurntSushi's `erd` markup-oriented diagram tool. ### Sources - - - ## Security Notes narrow executable package without higher-risk signals. - **Geiger risk:** green / low - narrow executable package without higher-risk signals ## Source Database Details - **Source Database:** Homebrew formula API - **Tap:** homebrew/core - **Full Name:** eralchemy - **Version Scheme:** 0 - **Revision:** 0 - **Bottle Stable Root URL:** - **Deprecated:** no - **Disabled:** no - **Keg Only:** no - **URL Keys:** stable ## Other Package-Manager Records - dnf - eralchemy - 1.5.0-4.fc45: normalized package name match | Fedora Rawhide package metadata: eralchemy from https://dl.fedoraproject.org/pub/fedora/linux/development/rawhide/Everything/x86_64/os/repodata/e5ca8ce900cd68f5419e1c39ae517343100b306336cbaeb70a3c153121d95094-primary.xml.zst | Entity Relation Diagrams generation tool | https://github.com/eralchemy/eralchemy - dnf - python3-eralchemy - 1.5.0-4.fc45: normalized package name match | Fedora Rawhide package metadata: python3-eralchemy from https://dl.fedoraproject.org/pub/fedora/linux/development/rawhide/Everything/x86_64/os/repodata/e5ca8ce900cd68f5419e1c39ae517343100b306336cbaeb70a3c153121d95094-primary.xml.zst | Entity Relation Diagrams generation tool | https://github.com/eralchemy/eralchemy ## Related links - [Source-control packages](https://www.automicvault.com/pkg/source-control-tools/) - Belongs to a source-control command family. - [Terminal utility packages](https://www.automicvault.com/pkg/terminal-utilities/) - Matched terminal and command-line workflow metadata. - [Text processing packages](https://www.automicvault.com/pkg/text-processing-tools/) - Matched text, document, or structured-data processing metadata. - [Developer build packages](https://www.automicvault.com/pkg/developer-build-tools/) - Matched build, compiler, generator, or developer workflow metadata. - [graphviz](https://www.automicvault.com/pkg/brew/graphviz/) - Runtime dependency declared by Homebrew. - [libpq](https://www.automicvault.com/pkg/brew/libpq/) - Runtime dependency declared by Homebrew. - [openssl@3](https://www.automicvault.com/pkg/brew/openssl-3/) - Runtime dependency declared by Homebrew. - [python@3.14](https://www.automicvault.com/pkg/brew/python-3-14/) - Runtime dependency declared by Homebrew. - [pkgconf](https://www.automicvault.com/pkg/brew/pkgconf/) - Build dependency declared by Homebrew. - [chdig](https://www.automicvault.com/pkg/brew/chdig/) - Shares av.db curated category or tags: cli, database, developer-tools. - [dbhash](https://www.automicvault.com/pkg/brew/dbhash/) - Shares av.db curated category or tags: cli, database, developer-tools. - [diesel](https://www.automicvault.com/pkg/brew/diesel/) - Shares av.db curated category or tags: cli, database, developer-tools. - [golang-migrate](https://www.automicvault.com/pkg/brew/golang-migrate/) - Shares av.db curated category or tags: cli, database, developer-tools. - [jet](https://www.automicvault.com/pkg/brew/jet/) - Shares av.db curated category or tags: cli, database, developer-tools. - [liquibase](https://www.automicvault.com/pkg/brew/liquibase/) - Shares av.db curated category or tags: cli, database, developer-tools. - [memtier_benchmark](https://www.automicvault.com/pkg/brew/memtier-benchmark/) - Shares av.db curated category or tags: cli, database, developer-tools. - [graphviz2drawio](https://www.automicvault.com/pkg/brew/graphviz2drawio/) - Both packages touch the same language runtime or ecosystem. Shared terms: cli, developer, developer-tools, diagram, diagramming. - [overarch](https://www.automicvault.com/pkg/brew/overarch/) - Local package facts share a topical domain. Shared terms: cli, developer, developer-tools, diagram, diagram-generation. ## Combined YAML source View the package source record on GitHub. [combined/eralchemy.yml](https://github.com/automic-vault/db/blob/main/combined/eralchemy.yml) ## Sources - Nucleus package database - Geiger risk classifier - package-page enrichment - curated package history - package version freshness - av.db category and tag curation - package relationship graph - external package-manager database matches - cross-ecosystem install command graph