A lightweight, fully offline Windows tool that compares PDF and JSON files in batch, highlights every difference, and exports a shareable report.
Text-based PDF comparison. Not for scanned or image-only PDFs.
One-time payment · lifetime updates · no subscription
PJCompare · side-by-side comparison view
Stop opening file after file. PJCompare compares whole sets of files and tells you what actually changed.
Compare two JSON files side by side. Added, removed and changed keys are color-coded instantly.
Compare two PDF documents at text level. Changes are highlighted in a clean side-by-side view.
Point at two folders and compare every matching PDF or JSON pair in one run, with live progress.
Turn any comparison into a clean HTML report you can share with your team or keep as proof of change.
Most compare tools force you to ignore timestamps, IDs and formatting every single time. PJCompare is built around the way test automation actually works.
Your files never leave your machine. No cloud, no uploads, no sign-up. Sensitive test output stays private.
Drop files or folders straight into the window. No tedious file picking, no setup to learn.
Switch the interface language anytime to match your team.
One-time payment, lifetime updates for this version. No recurring fees.
Drag two PDFs, two JSONs, or two folders into the window. PJCompare matches files by name.
Click compare. Batch runs show a live progress bar and a log of each file pair as it finishes.
Changes appear side by side, color-coded, so you can tell at a glance what moved.
Save the result as an HTML report to hand to your team or attach to a ticket.
No subscriptions, no hidden fees. Buy once and keep the tool forever.
Not sure it fits? Contact me before buying and I'll help you confirm whether PJCompare matches your use case. Refunds are available within 30 days if it doesn't work for you.
Windows 10 and Windows 11, 64-bit. This is a Windows desktop app.
Yes. You pay once and get a perpetual license with lifetime updates for v1.x.
No. PJCompare works on text-based PDFs. If your PDFs are scanned images, use an OCR step first to extract text, then compare.
This is a false positive from bundling the Java runtime. The tool is safe. Click “More info” then “Run anyway” to install.
No. PJCompare runs 100% offline. Your PDF and JSON files never leave your computer.
Yes. If the tool doesn't work for your use case, contact me within 30 days for a full refund.
This software includes several open-source libraries. The full license texts and third-party notices are bundled with the installer. After installation, see THIRD-PARTY-NOTICES.txt in the install directory.