AI for Developers
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Best Trelent alternatives

5 tools developers use instead of Trelent, ranked by popularity. 5 offer a free plan and 2 are open source. Updated October 2026.

Free Open source Showing 1–5 of 5
  1. DiagramGPT logo

    DiagramGPT

    Free plan

    Eraser's AI diagram generator that turns a text prompt or pasted code into architecture, sequence, ERD, or flowchart diagrams you can keep editing.

  2. README-AI logo

    README-AI

    Free Open source

    Open-source Python CLI that reads a codebase and generates a complete README.md, including badges, install steps, and usage examples.

  3. DocuWriter.ai logo

    DocuWriter.ai

    Free plan

    Generates API docs, READMEs, and UML diagrams from your codebase, with an Autopilot agent that refreshes documentation on every push.

  4. Autodoc logo

    Autodoc

    Free Open source

    Experimental CLI toolkit that walks a git repository and generates markdown documentation for every file and folder, queryable in natural language.

  5. Supacodes logo

    Supacodes

    Free

    SaaS tool that writes and updates internal code documentation automatically on every GitHub push, across TypeScript, Python, Java, and more.