Online Text Diff Checker — Compare Two Texts Side by Side
Paste two pieces of text and instantly see exactly what changed, character by character. Perfect for proofreading, document comparison, and change tracking.
Features
Character-Level Diff
See individual character insertions, deletions, and changes highlighted in color.
Instant Comparison
Results appear as you type — no submit button needed.
Any Text Type
Works with prose, source code, configuration files, emails, or any text content.
How It Works
Put the original version of your text in the left or top panel.
Put the new or edited version in the right or bottom panel.
Added text is shown in green, removed text in red. Unchanged text appears normally.
Frequently Asked Questions
Related Tools
Compare two versions of any code file side by side with syntax highlighting for 50+ languages. Changed lines are highlighted in green and red — like a lightweight code review tool.
Paste any draft and get a report on passive voice, vague filler words, and accidentally repeated words. A fast way to spot weaknesses and tighten up any piece of writing.
Paste formatted text from Word, Google Docs, or Outlook and instantly see the clean HTML code behind it. Useful for publishing content to a CMS, email template, or webpage.