Kolos Hetyéssy Software developer

Kolos Hetyéssy · Software developer · Hungary, EU

Precise tools for messy business files.

Bank statements, payment files, CAD drawings, map listings. I build small, deterministic software that turns them into clean, structured data, and tells you exactly where it could not.

Balance audit sample output

NL69 INGB 0123 4567 89 · EUR

Opening balance
12,500.00
+ Credits
2,500.00
− Debits
189.95
= Calculated closing
14,810.05
Closing reported by bank
14,810.05

Difference 0.00VERIFIED

Products

Small tools that each do one job carefully. Every product page says exactly what it does and does not do, and most let you try it with your own file.

REST API Live on RapidAPI (free plan)

Bank Statement Reconciler

MT940 · MT942 · camt.052/053/054 · BAI2 · CODA · ZIP → JSON · CSV · hledger · Beancount · camt.053 · DATEV

Parses MT940, ISO 20022 camt, BAI2 and CODA files, normalizes every transaction and proves each statement adds up to the cent.

±0.00 every statement balance-checked to the cent

REST API Live on RapidAPI (free plan)

CAD DXF Quote API

DXF R12 – R2018+ · ASCII & binary → JSON · SVG preview

Reads any DXF and returns the numbers a cutting quote needs. Cut length, pierces, parts, holes, net area, bounding box and BOM.

0.02 mm cut-length agreement on 14 reference drawings

Chrome extension Launching soon

Maps Lead Extractor

Google Maps search results → CSV · JSON

Turns a Google Maps search into a clean lead list, then finds emails and social profiles on each business website. Runs entirely in your browser.

0 leads sent to any server of ours. Everything stays in your browser

All products (4) →

How I build

  1. Deterministic

    The APIs use no AI. The same file always gives the same result, and every number can be traced back to the input.

  2. Private by default

    Uploaded files are processed in memory and never stored. The browser extension runs entirely on your computer.

  3. Tested on real files

    Public samples from real banks, thousands of deliberately damaged drawings, live runs in four Google Maps languages.

  4. Honest about limits

    Every product page lists what it does not support yet, before you spend time integrating it.

Contact

A question about a product, or a bank file or drawing it does not handle yet? Send it over. Real-world files are the fastest way to make these tools better.

What is it about?

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