OmniTools

Text Diff & Word Counter

Side-by-side text comparison, line-by-line diff visualizer, and word statistics.

Basis: Unicode character-level comparison with longest common subsequence (LCS) diffing·2026-08-28 verified·Editorial policy

Before you rely on this

Compares at the character and word level. Different line endings (CRLF versus LF), invisible whitespace and Unicode normalization forms (NFC versus NFD) all mark visually identical text as changed, and edits that preserve meaning — reordered paragraphs, for instance — still register as differences.

Tool Overview & Key Purpose

Compare side-by-side differences between two text documents and count characters, words, and reading times.

Step-by-Step Usage Instructions

1STEP 1

Paste original text into the left panel and modified text into the right panel.

2STEP 2

Choose comparison precision mode (Line-by-Line or Word-by-Word).

3STEP 3

View highlighted green (additions) and red (deletions) side-by-side diffs.

4STEP 4

Check real-time counter metrics (characters with/without spaces, words, sentences, reading time).

Real-World Scenarios & Practical Cases

3 Practical CasesScenario #1

Legal Contract Terms Revision Audit

Compare original vs revised contract drafts to catch modified clauses, deleted terms, or added conditions.

Invaluable for legal document reviews.Scenario #2

Essay & Resume Character Count Limit

Monitor strict character counts (with or without spaces) for college applications or job resumes.

Tracks both metrics independently.Scenario #3

Speech Script Estimated Reading Time

Estimate speech duration (e.g. 1,000 words = ~5 minute presentation) based on average reading pace.

Helps balance presentation timing.Comparison methodMyers Difference Algorithm (Standard Engine used by Git Diff).

Pro Tips & Key Considerations

Powered by Myers Diff algorithm for optimal string comparison.Pay close attention to whether requirements specify character counts with or without spaces.

Frequently Asked Questions (FAQ)

Sources & References

GNU Diffutils Manual — Text Comparison Algorithms Wikipedia — Diff (Myers Algorithm) Overview

Basis: Unicode character-level comparison with longest common subsequence (LCS) diffing · 2026-08-28 verified