Built With

The tools, services, and software behind Chat-lab.ai, a small-team stack chosen for being Python-friendly, affordable, and easy to maintain. For the AI services the apps call at runtime, see Third-Party Providers.

Application framework

• Streamlit: the pure-Python web framework every tool is built with. One multipage app, custom light/dark theming, and native widgets.
• Python: with pypdf and python-docx for document handling, pandas and Pydantic for data, and yt-dlp + FFmpeg for audio retrieval.
• Docker: the whole suite ships as a single container.

AI assistants used to build it

• Claude (Anthropic): Claude Code wrote and refactored most of the application code and this documentation; Claude Design produced the brand kit (palette, logos, typography); Claude Cowork and Claude Chat supported planning and research along the way.
• ChatGPT and Codex (OpenAI): used across earlier iterations of the tools and for second opinions.

Infrastructure & hosting

• RackNerd: the VPS the apps run on.
• Cloudflare: DNS for Chat-lab.ai, Tunnel to publish the apps without exposing the server, and Pages hosting this documentation site.

This documentation

• MkDocs with Material for MkDocs: every page is a plain Markdown file.

Design

• Bricolage Grotesque (headings) and JetBrains Mono (code): self-hosted via Google Fonts files.
• Material Symbols: the icon set used throughout the apps and this site.

Support

• Buy Me a Coffee: if these tools save you time, ☕ is appreciated.