Text diff checker
Compare two snippets side-by-side with colour-coded highlights and line numbers.
Start typing or drop files above to compare texts.
How highlighting works
Colours map to line-level changes; replaced lines also show inline highlights.
- Green
- Lines present only in Text B.
- Red
- Lines removed from Text A.
- Amber
- Lines modified with inline word-level highlights.
Privacy-first processing every time
WizardOfAZ tools do not need registrations, no accounts or sign-up required. Totally Free.
- Local only: There are many tools like Text tools, some CSV tools, List tools etc. that are only processed on your browser. Data and Documents are transformed on your machine, so nothing is sent to our servers.
- Transparent progress: Watch the processing banner appear as soon as work begins and know exactly when it completes.
- Clear safeguards: Every tool links directly to our privacy policy and has been reviewed for accessibility.
- Secure Process: Some Tools need to be processed in the servers so the Old Wizard processes your files securely on our servers, keeping them for up to 1 hour so your tool can finish its work—after that, they are automatically deleted after 1 Hour.
“The wizard does everything I need. I can merge sensitive PDFs without a second thought.”
— Morgan, legal operations lead
What is Text Diff Checker?
Text Diff Checker is a free text utility from WizardOfAZ. Use it to check text snippets for common problems as part of your writing and editing, without installing extra software.
Popular ways to use Text Diff Checker
- Streamline writing and editing by using Text Diff Checker to check text snippets for common problems.
- Share deliverables faster—processed text snippets are ready for download in seconds.
- Combine Text Diff Checker with other WizardOfAZ tools to keep complex workflows in one browser tab.
Examples and workflow tips
- Upload a sample file, cast the spell to check text snippets for common problems, and download the processed result instantly.
- Bookmark the Text Diff Checker in your browser so recurring tasks stay only one click away.
- Share the spell with teammates who need a quick, no-install way to check text snippets for common problems.
Frequently asked questions
Is the Text Diff Checker secure?
Yes. The Text Diff Checker runs entirely in your browser, which means your content never leave your device.
What can I do with the Text Diff Checker?
You can writing and editing by processing text snippets without uploading them to an external service.
Can I use Text Diff Checker on mobile?
Yes. WizardOfAZ tools are responsive, so you can launch the spell on desktops, tablets, or phones without installing extra apps.
Related tools to explore
Expand your toolkit with other WizardOfAZ spells that complement Text Diff Checker:
- Base64 Tool — Use it to work with text snippets using flexible options.
- Case Converter — Use it to work with files using flexible options.
- Case Styles Converter — Use it to work with files using flexible options.