What this tool does
Paste two versions, run a line-based diff, and copy the result with selected text processed locally in your browser.
Privacy behavior
Selected file contents are processed locally in your browser for supported workflows. This privacy build does not intentionally load ads, analytics, remote fonts, or third-party runtime scripts.
Supported workflow
Diff checking helps review edits, compare snippets, inspect configuration changes, and debug text output before sharing or deploying.
When should you use a diff checker?
Diff checking helps review edits, compare snippets, inspect configuration changes, and debug text output before sharing or deploying.
This tool uses a simple line-based comparison and renders text safely as text, not raw HTML.
Frequently Asked Questions
Is this Diff Checker free?
Yes. You can compare, copy, and clear text without signup.
Is my text sent to ConvertUnlimited servers?
No server-side upload endpoint is used for comparison; text is processed locally in your browser.
What kind of diff is used?
The tool uses a line-based diff that marks added, removed, and unchanged lines.
Can it ignore whitespace or case?
Yes. Use the toggles before comparing.
Does it support Unicode?
Yes. Unicode text and emojis are handled as browser strings.
Privacy
Privacy build: This build removes ads, analytics, remote fonts, runtime CDN scripts, and file-operation telemetry. Selected files are processed in the browser using local JavaScript and browser APIs.
ConvertUnlimited does not provide a server-side upload endpoint for this text comparison flow. Text is processed locally in your browser.
Terms of Use
ConvertUnlimited is provided as is. Review diff output before using it in production workflows.