Bill of materials, redlined

Catch every BOM change before it costs you.

Upload two BOM revisions and get a redlined diff in seconds — added, removed, and changed lines flagged automatically. Flat or multi-level. Nothing leaves your browser.

Start comparingSee how it works
GBX-1000 — Rev C → Rev D3 changes
StatusPartDescriptionQty
ChangedHSG-201Housing Body1
AddedSHF-303Shaft Retaining Clip2
RemovedGTR-603Idler Gear 18T1

Product

Built for the moment a BOM revision lands in your inbox.

Multi-level BOM support

Indented or parent-child structures. Matches parts by their full assembly path, not just part number.

Redlined diff, not a spreadsheet

Additions, removals, and changes read like a marked-up engineering document — not raw rows to eyeball.

Runs entirely in your browser

Files are parsed client-side. Nothing is uploaded to a server — useful when the BOM is client-confidential.

Export & share instantly

Download the full diff as CSV — status, level, path, and before/after values — ready to drop into an ECO.

How it works

Login, upload BOMs and compare.

01

Load two revisions

Drop in a CSV or Excel export for the baseline and the comparison BOM.

02

Confirm the mapping

Structure and columns are auto-detected — part number, description, qty, revision, level.

03

Read the redline

Filter by change type, search a part, export the full diff.