Free & open source · Windows

Open Source Bookkeeping for Bricklink Sellers.

StudBalance syncs your sales and purchases straight from BrickLink, tracks expenses, and displays insights in one clean dashboard.

v1.0.0 · No account, no subscription, your data stays on your machine

Main StudBalance Dashboard Screen

Everything a spreadsheet makes tedious, handled automatically.

Most sellers track BrickLink income by downloading their orders. StudBalance does it better by giving you insights on monthly profits & expenses.

One-click sync

Pulls your sales and purchases directly from your BrickLink account using your own API keys — nothing is shared with anyone else.

$

Automatic currency conversion

Orders in different currencies get converted using the actual historical exchange rate from each order's own date — not today's rate.

Profit, not totals

Cancelled orders are excluded automatically. See sales, purchases, manual expenses, and net profit trended by month.

Export anywhere

Send a date range to Excel, HTML, CSV, or XML whenever you need records outside the app — for taxes, an accountant, or your own archive.

Runs entirely on your computer.

No account to create, no server holding your data, no subscription. StudBalance is a desktop app — your BrickLink keys and order history live in a local database only you can access.

Download the latest release

StudBalance is an open-source, independent, unofficial tool and is not affiliated with, sponsored by, or endorsed by BrickLink or the LEGO Group. LEGO and BrickLink are trademarks of their respective owners.