See exactly what changed between two versions of a bill.

DeltaTrack compares two versions of legislative text and shows you the real differences — sections added, removed, moved, and reworded, plus every dollar amount that changed. Choose how you want to run it.

Coming soon

Browser-only

No data leaves your browser.

The entire diff runs locally in your browser — your documents are never uploaded anywhere. Ideal for sensitive drafts. This mode is in development (WebAssembly).

Not yet available

Available now

Process on our server

Upload a start PDF and an end PDF.

We run the full diff engine on our server and return the result to your browser. Your session is not tracked, and uploaded files are processed in memory and never stored.

Compare two PDFs →

Just want to see what the output looks like? View a sample report (opens in a new tab).