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PaperStack/Text Compare Online Free

Compare two texts side by side

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How to use Text Compare?

  1. Paste the first text into the left box and the second text into the right box.
  2. Run Compare to highlight differences.
  3. Copy the changed parts or edit your text until they match.

FAQs

PaperStack’s Text Compare highlights differences between two pieces of text so you can spot edits quickly. It’s helpful for proofreading, checking revisions, and comparing versions of copy or code snippets. Comparison runs locally in your browser—nothing is uploaded.
It’s best for content differences: missing/extra words, changed lines, or modified phrases. If your texts are very large or heavily rearranged, treat the output as a guide and review key sections.
No. Text comparison runs locally in your browser. Your text is not sent to PaperStack for processing or storage.
Yes. It’s free to use with no sign-up required.

Blogs

Featured
How to Use Text Compare - Free Online Tool

Text Compare is a free online PaperStack tool for text utilities. Diff two text blocks and see every change highlighted.…

Complete Guide to Text Utilities - Count, Clean & Format
Most writing work is not “open Word.” It is paste from a PDF, hit a character limit, rename a product in 80 places, or turn a title into a URL slug. PaperStack …
How to Use Word Counter - Free Online Tool
Word Counter is a free online PaperStack tool for text utilities. Count words, characters, sentences, and paragraphs as you type or paste.…
How to Use Case Converter - Free Online Tool
Case Converter is a free online PaperStack tool for text utilities. Switch text between UPPERCASE, lowercase, Title Case, and more in one click.…
How to Use Find & Replace - Free Online Tool
Find & Replace is a free online PaperStack tool for text utilities. Search a block of text and replace matches one by one or all at once — including with regula…
How to Use Slug Generator - Free Online Tool
Slug Generator is a free online PaperStack tool for text utilities. Turn a title into a clean, URL-friendly slug for blogs, files, and SEO links.…
How to Use Text Editor - Free Online Tool
Text Editor is a free online PaperStack tool for text utilities. A distraction-free, privacy-first plain text editor in your browser.…

Built for every tool

Why use PaperStack?

The same benefits apply to every tool—including Text Compare.

  • Secure & private

    Your files are processed in your browser on your device—not sent to our servers for processing or kept on our systems. Sensitive documents stay under your control.

  • 100% free

    No hidden fees, no premium tiers, and no usage limits. Use PaperStack for personal or business work—no account required.

  • Fast processing

    Tasks run locally in your browser so you get results quickly—often in seconds—without waiting on a remote queue, even for larger files your device can handle.

  • Works everywhere

    No software to install. Open PaperStack in any modern browser on Windows, Mac, Linux, iOS, or Android and use the tools you need.

Text Utilities

Other tools

Same privacy-first workflow — every tool runs in your browser.

View all

Word Counter

Count words and characters

Case Converter

Change text case

Find & Replace

Find and replace text

Slug Generator

Create URL slugs

Text Editor

Write, edit, and organize plain text online

Lorem Ipsum Generator

Generate placeholder text

Text Cleaner

Remove extra spaces and clean formatting

Remove Line Breaks

Join lines and strip line breaks

Rich Text → Plain

Strip formatting to plain text

HTML Escape

Escape and unescape HTML entities

Email List Cleaner

Clean and dedupe email lists

Text to List

Turn lines of text into lists

Character Counter

Count characters, words, and letters

Privacy-first

Safe in our hands

PaperStack takes security very seriously. Remember that your files stay on your device—processing runs in your browser, and we don’t store your documents on our servers.

  • No cloud uploads

    Your document never leaves this device for processing.

  • Browser-only processing

    Merge, convert, and compress run locally in your tab.

  • Nothing stored on our servers

    We don’t keep copies of your files after you close the page.

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PDF · 3 files

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DOCX → PDF

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2.4 MB → 410 KB

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