Rails Lens

Rails application visualization and annotation tool that generates model docs and ERDs.

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Rails Lens is an open-source tool that generates intelligent model annotations and entity-relationship diagrams for Rails applications, covering PostgreSQL, MySQL, and SQLite. It's for Rails developers who want their model documentation and schema visualization to stay accurate as the codebase evolves.

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Problem & pain-point mapping
Who we surface it to (audience fit)
What it's a strong alternative to
Trust & credibility signals

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