About DiffType
A free, fast, and privacy-focused diff tool for developers.
Why Another Diff Tool?
Most online diff tools either bombard you with ads, require sign-ups, or send your data to external servers. DiffType is different: it's clean, fast, and respects your privacy. Basic comparisons happen entirely in your browser.
What Can You Compare?
Plain Text
Code, configs, logs, documentation—anything text-based. Line-by-line comparison with character-level highlighting for small changes.
JSON Objects
Deep structural comparison that understands nested data. Shows the exact path of every change, addition, and deletion.
Arrays & Lists
Compare collections of items with or without order sensitivity. Perfect for comparing user lists, tags, or feature flags.
Privacy
Your data stays yours. We don't store, log, or analyze what you paste. For basic diffs, all processing happens client-side in your browser. The server is only used for complex operations when needed.
Open for Feedback
Missing a feature? Found a bug? Have ideas for improvement? Reach out. This tool is built for developers by developers, and your input shapes where it goes next.