A Windows desktop research utility for Borderlands 4 item builds.
Download the latest Windows installer
Tacklebox Master System turns save-editor item codes and item-card screenshots into a searchable local research library. Decode and compare builds, document testing, extract card stats with local OCR, and safely update the parts reference when the shared workbook changes.
Decode item parts, search saved builds, and keep research organized in one place.
Browse item-card screenshots alongside reviewed OCR stats and linked builds.
- Open the latest release using the link above.
- Download
Tacklebox.Master.System.Setup.v1.0.0.exe. - Double-click the installer and follow the short setup.
- Leave Launch Tacklebox Master System checked and select Finish.
Python, PowerShell, and administrator access are not required.
Windows SmartScreen may show Unknown Publisher because the first release is not digitally code-signed. Download TMS only from this official release page and use the supplied SHA-256 file if you want to verify the installer.
- Captures and decodes Borderlands 4 save-editor item codes
- Organizes builds in a searchable notebook
- Compares parts and finds the closest saved match
- Records test goals, results, verdicts, notes, and history
- Stores, crops, and enlarges item-card screenshots
- Extracts card names, stats, and effects using entirely local OCR
- Creates verified backups and restores them safely
- Imports updated Tacklebox reference workbooks without losing research
TMS does not upload item codes, builds, screenshots, OCR results, or notes. Each
Windows user starts with an empty personal library stored locally under
%LOCALAPPDATA%\Tacklebox Master System.
Installing a newer version preserves that library. The public installer does not contain the developer's builds, item cards, tests, or backups.
Tacklebox Master System is an unofficial fan-made research utility and is not affiliated with or endorsed by Gearbox Software or 2K Games. Borderlands and related names and imagery belong to their respective owners.


