Text Diff Checker
How to Compare Text Locally on your Mac
Diffs are useful for snippets, logs, config files and generated output. CodeSwissKnife compares text locally so private content does not need to be pasted into an online diff tool.
Why compare text locally?
Text can contain keys, internal URLs, customer data or unreleased copy. Local comparison keeps both sides on your Mac.
Spot line-level changes
Use side-by-side comparison to find additions, removals and changed lines in pasted text without opening a full editor.
Use with structured tools
For JSON, YAML or plist meaning rather than text formatting, use Structured Data Diff. Use Text Diff Checker when exact text changes matter.
Use Text Diff Checker offline on macOS
Download CodeSwissKnife to keep this inspector or debugger and the rest of your developer workflow tools local on your Mac.