Free developer tools
Free tools for docs - useful alone, better with a connected repo.
Mermaid, SQL ER, README, AGENTS.md, ADRs, and llms.txt - no account. Connect GitHub when you want them kept current on merge.
Mermaid Diagram Editor
Private in-browser editor with instant preview, shareable URLs, and SVG export.
Open toolSQL to ER Diagram
Paste CREATE TABLE SQL for a live Mermaid ER diagram, SVG/PNG export, and optional AI data-model docs.
Open toolREADME Generator
Structured README builder with live Markdown preview and shareable export.
Open toolllms.txt Generator
Import a sitemap, edit with live preview, and export a valid llms.txt for AI agents.
Open toolAGENTS.md Generator
Structured AGENTS.md builder with live preview, examples, and shareable export for coding agents.
Open toolADR Generator
Form-driven Architecture Decision Records with examples and clean Markdown export.
Open toolllms.txt Validator
Paste or upload llms.txt to validate structure, links, and Optional section placement.
Open tool
Used a free tool? Connect a repo before the output drifts.
Moxie indexes your GitHub repositories, rewrites docs when code changes, and serves conventions to Cursor, Claude Code, and Codex over MCP.