Compare original and revised text side by side. Highlight added and deleted characters, words or lines, with optional whitespace and case handling.
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No registration · Free to useHow to use Text Compare
- Enter the original and revised texts in separate panes.
- Choose character, word or line comparison and optional normalization.
- Review red deletions and green additions, then copy or download the differences.
Frequently asked questions
Which comparison mode suits Chinese text?
Character mode reveals individual Han-character replacements. Word mode suits prose and line mode suits logs or code. They change comparison granularity without editing the input.
What do red and green mean?
Red on the original side marks removed text; green on the revised side marks additions. A replacement is normally one deletion plus one addition.
Does ignoring whitespace remove line breaks too?
No. It normalizes spaces and tabs within each line and trims line edges, while preserving newline boundaries. Normalize paragraphs separately if needed.
Does it compare meaning or detect plagiarism?
No. It compares textual additions and deletions, not semantics, plagiarism or factual accuracy. Paraphrases may still show extensive differences.
Can I compare Word or PDF files?
This tool compares plain text and reads text formats such as TXT, JSON, Markdown and CSV, up to 1 MB. It does not parse Word or PDF layouts.