Nathan Van TwiskDigital Designer & Developer

Selected Work / Case Study 01

Ledgerline

A transaction-cleanup tool that turns messy bank exports into tidy, categorized records.

Year2026
RoleDesign & build
ClientInternal tool
StatusIn use
FocusProduct · Front-end

Overview

Bank exports arrive as inconsistent CSVs — truncated payee names, duplicate rows, and categories that mean something to the bank but nothing to the person budgeting. Ledgerline ingests those exports and produces clean, consistently formatted records ready for a spreadsheet or accounting tool.

What I did

Designed the review flow — a keyboard-first queue where each transaction can be renamed, categorized, or merged in a single pass — and built the front end that ships it. Rules learn from each correction, so the queue gets shorter every month.

Outcome

A monthly chore that took an evening now takes minutes, and the exported records are consistent enough to feed reporting without manual fixes.

In Detail

(01 — 03)
01The review queue — one keystroke renames, categorizes, or merges each transaction.
02Rules learn from corrections, so recurring payees clean themselves up.
03The finished export — consistent names, categories, and dates.
Next projectGentlebrook

Contact

Have a product to build, a site to rethink, or a system to untangle?

hello@nathanvantwisk.com