File Compare, List Diff & Text Checker
Compare text, code, documents, lists and images side by side. Processing stays in your browser—files never leave your device.
The format is detected automatically. Everything runs in your browser.
Files never leave your device. Privacy & limits
Text & Code
Diff plain text, markup, styles, configs, and SQL scripts.
Data
Reconcile CSV exports, workbooks, and line-based lists.
Documents
Compare PDF, Word, and rendered document pages privately in the browser.
Images & Color
Spot visual and color differences.
Utility
Quick visual utilities.
Why FileCompare.org
Privacy Guaranteed
Your files and text stay on your device. Browser-side processing means nothing is stored on our servers.
100% Free
No signup, watermarks, or hidden fees. Unlimited use for personal and commercial projects.
Instant Results
See diffs in seconds without waiting for server queues or desktop software installs.
Easy to Use
Paste, upload, compare, and export. No IDE or command line required.
Works Everywhere
Use on Windows, Mac, Linux, iOS, and Android in any modern browser.
21+ Diff Tools
Text, JSON, API, schema, Excel, Word, PDF, folder, image, color, list, and file diff in one place.
How to Compare Files Online
- 1
Choose a Tool
Pick text, API JSON, Excel, Word, PDF visual, folder comparison, or another format from the grid below.
- 2
Add Both Versions
Paste content or upload files into the left and right panels. Use demo samples to preview the diff.
- 3
Review & Export
Inspect highlighted changes, then copy or export results for tickets, pull requests, or audits.
Privacy & limits
Most tools process content entirely in your browser. A few formats have clear boundaries:
- Text, JSON, CSV, lists, HTML, CSS, SQL, and similar formats never upload to our servers.
- PDF compare uses the extracted text layer—not a full visual redline of layout or scans.
- Image compare highlights pixels; mismatched sizes and compression can create noise.