Online Text Formatter
Format pasted text with line trimming, horizontal whitespace cleanup, blank-line handling, and case conversion.
Open toolText Compare
Compare two text passages online with a word or line diff. Review highlighted additions and removals locally, then read the surrounding text to understand each change.
Free to useNo sign-upRuns in your browser
Enter your details
Enter the inputs, then select Compare texts.
Your result
Enter your details
Result will appear here
How Text Compare works
The comparison normalizes line endings and marks additions and removals after comparing either word tokens or lines in a bounded worker.
The totals count diff tokens for the chosen mode. The result explains textual changes rather than judging meaning, resolving merge conflicts, or storing revision history.
Both fields are limited to 50000 characters, and both cannot be empty at once.
How to use Text Compare
Paste the original and revised text, then choose word or line comparison.
Choose the versions and mode
Paste the original and updated texts into their fields and select words or lines. Preserve the same scope in both versions. Either field can be empty, but at least one must contain text.
Original text
Run the text comparison
Compare the versions and inspect the Identical or Different result. Read the highlighted additions and removals in context; unchanged passages remain visible around the edit.
Different
Review token totals
Use the added and removed token counts with the selected mode, rather than as a measure of meaning. Markup remains text. Review the changes before moving them to your document or source file.
Output details
When to use Text Compare
The comparison highlights literal edits that you can inspect in their surrounding text.
Compare original and revised paragraphs
Compare a draft paragraph with an edited version to find wording that was added or removed. Read the whole sentence after locating the edits, since the highlight cannot tell you whether the revision preserves a claim or changes its meaning.
Compare configuration text by line
Use line comparison for short configuration excerpts where each line carries a setting. Keep secrets out of the sample and retain the same section on both sides. The result shows literal differences rather than validating the configuration syntax.
Find text spacing differences
Compare apparently identical text when copied content behaves differently in another system. Visible edit markers can expose spaces or line changes. This tool normalizes carriage return line endings, so it cannot diagnose every difference in the original file bytes.
Interpret word and line diff totals
Read the highlighted changes in the selected comparison mode rather than treating every marked token as a character.
Added and removed totals count comparison tokens, whose meaning depends on word or line mode. They should not be labeled as a fixed count of edited sentences or substantive changes.
Letter case remains significant. The result does not merge similar meanings or assess grammar, and literal markup in the source is displayed as text rather than executed.
Check input size and difficult comparisons
Keep the two passages in the intended order and compare shorter sections when a large diff reaches its processing limit.
Both fields are limited to 50000 characters, and both cannot be empty at once. If a large comparison is stopped, compare smaller corresponding sections to make the output easier to inspect.
When a difference seems misplaced, check the selected mode and the pasted scope first. Repeated lines can create several plausible edit alignments, so review the source context as well as the highlighting.
More free tools to try
Choose another tool for your next calculation, conversion, or text task.
Sort Text Lines
Sort text lines A–Z or Z–A, optionally removing blank and duplicate lines, then copy the result.
Open tool
Word Frequency Counter
Analyze word counts and term frequency locally with Unicode aware word matching.
Open tool
Reading Time Calculator
Paste text and estimate reading time from its word count and your chosen reading speed.
Open tool
Remove Accents from Text
Remove diacritic marks from Unicode text locally while keeping the original letter order and line breaks.
Open toolCompare two versions of your text
Paste the original and revised text, then choose word or line comparison.
Text Compare: common questions
Answers about using Text Compare and understanding its results.
Are HTML tags executed?
No. Inputs are shown as text, including any markup.
Can either input be empty?
Yes. At least one input must contain text.
Does letter case affect the comparison?
Yes. Letter case remains significant. The comparison normalizes line endings but does not treat differently capitalized text as identical.
Does word mode count semantic changes?
No. Its totals describe inserted and removed tokens, including whitespace handling. Read the changed passage to assess meaning.