Manic Inventor

Manic Inventor

Privacy-first web tools, no signup
#93196550 followers1 following

About

The Philosophy I build tools for people who are tired of creating an account just to calculate a bill or organize a trip. I believe high-quality software should respect your time and your data. The Rules of Manic Inventor: No Signups: Use the tool immediately. No friction. No Servers: Your data never leaves your machine. 100% Local-first. Advanced Utility: Simple interfaces that don't compromise on "Power User" logic (like my Expense Matrix). I’m currently focused on building a suite of utility tools that prove you don't need a database to provide a great user experience. Testing & Feedback I'm an "Inventor" at heart—I'm constantly tweaking logic and UI. If you find a bug or have a feature request for the Expense Matrix (or any of my tools), please reach out!

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Tastemaker
Tastemaker
Gone streaking
Gone streaking

Maker History

  • Expense Splitter Matrix
    Expense Splitter MatrixAdvanced group billing with Matrix logic and 100% privacy.
    Jan 2026
    • 🎉
    Joined Product HuntJanuary 2nd, 2026

Forums

Manic Inventor•

5d ago

BlobCalc - Build interactive math dashboards stored entirely in the URL

BlobCalc turns formulas into interactive, shareable dashboards. Without servers, accounts, or tracking. 100% Stateless: Logic is encoded in the URL hash. Sharing the link = sending the calculator. Privacy: No database. Math stays in your browser. Instant UI: Write a formula, get slider-based UI instantly. Shareable: Send "living" links anyone can adjust. Ideal for ROI models, budgeting, and engineering math. Stop building spreadsheets. Start building Blobs.
Manic Inventor•

11d ago

Expense Splitter Matrix - Advanced group billing with Matrix logic and 100% privacy.

Stop chasing friends for money. Expense Matrix Splitter uses a unique grid-based approach for complex group expenses. Features advanced custom split logic ($ and %), local file saving/loading, and 100% client-side processing. No accounts, no servers, no nonsense.
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