Is diffing performed locally?

lockProcessed entirely in your browser. Your input is not uploaded.

Text Diff Checker

Compare two text versions side-by-side or stacked. Highlight additions, removals, and unchanged lines instantly.

Added Lines+3

Removed Lines-2

Original Text (Base)

Modified Text (New Version)

Visual Difference Highlights7 lines analyzed

-TaskKit is a free web utilities collection.

+TaskKit is a free web utilities suite.

Fast, client-side tools.

Works with slow internet.

-Easy to use.

+100% private and in-memory.

+Easy to use.

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verified_user

TaskKit Client-Side Security Guarantee

100% in-browser processing. Zero telemetry. Support independent open web tools.

Paste your base text into the left editor.

Paste updated version into the right editor.

Color-coded highlights show additions (green) and deletions (red).

verifiedSide-by-Side & Stacked

Responsive layout splits on desktop and stacks neatly on mobile.

verifiedChange Summary

Real-time count of added lines, removed lines, and unchanged sections.

Yes, line-by-line comparison executes entirely in your browser memory.

Text Utilities

Live count words, characters, sentences, paragraphs, and reading time with instant lexical density metrics.

Clean up messy text by removing extra spaces, trailing tabs, redundant blank lines, and broken line wraps.

verified_user100% Client-Side Guarantee

TaskKit never records, stores, or transmits the contents of your tool workspaces. Your data stays securely on your machine.