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100% In-Browser
Text Comparison

Online Text Diff & Comparison Tool

Compare two text blocks side-by-side with color-coded additions, deletions, and percentage similarity scores.

Compare by:
Similarity
100%
Matching words
0 words
Added (+)
+0 words
Deleted (-)
-0 words

Văn Bản Gốc (A)

Enter text in Box A or click "Sample" to compare.
Word count: 0 wordsDeleted words are marked in red strikethrough

Văn Bản So Sánh (B)

Enter text in Box B or click "Sample" to compare.
Word count: 0 wordsAdded words are highlighted in green

Compare Two Texts Side-by-Side with Visual Diffs

Find character, word, and line differences between two text drafts. Visual color-coded diff highlighting and automated similarity scoring.

STEP 01

Paste Original & Modified text

Enter original version on the left panel and revised version on the right panel.

STEP 02

Inspect side-by-side highlights

Added text is highlighted in soft green; deleted text is highlighted in soft red.

STEP 03

Analyze change metrics

Review total additions, deletions, modifications, and percentage similarity score.

Practical Text Diff Scenarios

Legal & Contracts

Contract Revision Audits

Spot stealth edits and clause modifications in contracts, terms of service, and NDAs.

Software & DevOps

Configuration File Differences

Compare JSON, YAML, or .env files side-by-side to debug deployment configuration drifts.

Frequently Asked Questions

Common questions & answers about Online Text Diff & Comparison Tool

How does the comparison algorithm detect changes?
It uses an optimized Myers diff algorithm to calculate the minimal edit distance at line, word, and character levels.
Can I ignore whitespace differences?
Yes. You can toggle whitespace and case sensitivity options according to your comparison needs.