Théophile Louvart

Théophile Louvart

TokenwiseTokenwise
Building tools I wish I had.

About

I’m a senior IT and data consultant with a passion for building tools that make engineers’ lives easier. After years of seeing data teams struggle with documentation and lineage, I decided to create Datadef to simplify the process. I love turning real-world pain points into practical solutions that save time and reduce frustration

Badges

Tastemaker
Tastemaker
Gone streaking
Gone streaking
Gone streaking 5
Gone streaking 5

Maker History

  • Tokenwise
    TokenwiseA smart LLM proxy that shows where you're overpaying
    Jun 2026
  • Datadef
    DatadefVisualize data lineage and generate documentation instantly
  • 🎉
    Joined Product HuntSeptember 7th, 2025

Forums

Tokenwise - A smart LLM proxy that shows where you're overpaying

Tokenwise is a one-line LLM proxy (OpenAI-compatible baseURL) for makers and small teams. It learns from your real requests, shows exactly where you're overpaying, proven with quality checks on your own traffic, not public benchmark, and lets you apply the fix in one click while it verifies the savings in real dollars.

Datadef - AI-powered data architecture diagrams and lineage tracking.

Datadef helps data teams design and document their data before it exists. Instead of auto-generated lineage and stale docs, you model tables, metrics, and relationships on a visual canvas, and documentation stays in sync as things evolve. It’s lightweight, collaborative, and built for how data teams actually work.

Datadef - Visualize data lineage and generate documentation instantly

Datadef is a web application that helps data engineers and architects visualize data lineage, define table relationships, and generate documentation automatically.
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