Free Online Text Diff & Comparison Tool

Compare Text
Online

Compare two pieces of text and instantly identify the differences. Paste your content into the tool and see what has changed between the texts.

text-compare · live diff
Original Text
0 words
Modified Text
0 words
Compare by:
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Words (Original)
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Words (Modified)
0
Deletions
0
Additions
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Changes
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Similarity
Original — Deletions
Deleted
Paste text above to see the diff…
Modified — Additions
Added
Paste text above to see the diff…
Inline Diff View — all changes in one view
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Paste text above to see the inline diff…
Original: 0 words Modified: 0 words Deleted: 0 Added: 0 Similarity: —
Quick Guide

How to Compare Two Texts

No account, no setup. Paste your two texts and see every difference highlighted instantly.

01

Paste Both Texts

Paste the original text in the left panel and the modified version in the right panel. The diff updates live as you type — no button needed.

Live diff · no delay
02

Choose Compare Mode

Switch between word, line, or character comparison. Optionally ignore case, extra whitespace, or blank lines to focus on meaningful changes.

Word · Line · Character
03

Read the Diff

Deletions are highlighted in red on the left, additions in green on the right. Expand the inline view to see all changes in one unified panel.

Side-by-side · Inline view
Try It Now — It's Free No account needed · Works in every browser · Your text never leaves your device
Features

Everything You Need to Diff Text

A fully featured diff tool that works on words, lines, or characters — with smart options for ignoring noise.

Live Diff
The diff updates on every keystroke. No button needed — changes appear instantly in both the side-by-side and inline views as you type or paste.
Side-by-Side View
Deletions from the original are shown in red on the left panel; additions in the modified text are shown in green on the right — making it easy to scan both versions simultaneously.
Inline Diff View
Expand the inline panel to see both deletions and additions woven into a single unified view — ideal for quickly scanning what changed without switching between panels.
Word, Line & Character Mode
Switch between word-level diff (great for documents), line-level diff (great for code and lists), and character-level diff (great for spotting subtle typos).
Ignore Case
Compare texts case-insensitively so that "Hello" and "hello" are treated as identical. Useful for comparing content where capitalisation has changed but meaning has not.
Ignore Extra Spaces
Normalise whitespace before comparing so that extra spaces, leading/trailing spaces, and tab differences don't show up as changes in the diff output.
Ignore Blank Lines
Skip empty lines when comparing so that added or removed blank lines don't obscure meaningful content changes in documents, code files, or lists.
Similarity Score
See a percentage similarity score calculated from the ratio of matching tokens to total tokens — giving an at-a-glance measure of how similar the two texts are.
100% Private
All comparison runs entirely in your browser using JavaScript. Your text is never sent to any server, never stored, and never logged — safe for confidential documents.
Who It's For

Who Uses a Text Compare Tool?

Text comparison is needed any time two versions of the same content need to be reviewed — from code reviews to contract revisions.

👩‍💻
Developers
Compare code snippets, config files, or log outputs without a full IDE. Useful for quick ad-hoc diffs when you don't have git or a diff tool handy.
⚖️
Legal & Contracts
Compare two versions of a contract, terms document, or legal brief — quickly spotting what clauses were added, removed, or changed between drafts.
✍️
Writers & Editors
Compare drafts to see what changed between revisions, track what an editor altered in your manuscript, or verify that only intended changes were made.
🎓
Students & Teachers
Compare essay drafts, check for unauthorised changes between submission versions, or spot the difference between two research paper editions.
📊
Data Analysts
Compare two exports of the same dataset in text form, spot which rows or values changed between runs, and verify data pipeline output consistency.
🔍
SEO Specialists
Compare page content before and after a site update, verify that only intended copy was changed, and track what competitors altered on their pages.
📋
Project Managers
Compare meeting minutes, requirement documents, or spec sheets between versions to ensure only approved changes were applied before sign-off.
🌐
Translators
Compare the source text with a translation, or compare two translations against each other, to spot omissions, additions, or inconsistencies.

Why Use This Text Compare Tool?

When working with different versions of the same document, identifying changes manually can take a lot of time. A text compare tool helps analyze two pieces of text and quickly highlight the differences between them.

Instead of reading both texts carefully line by line, the tool allows you to compare them side by side. This makes it easier to detect edits, missing lines, or modifications.

Text comparison tools are widely used by writers, editors, and developers who need to review revisions and track updates efficiently.

FAQ

Frequently Asked Questions

What is a text compare tool?
A text compare tool analyzes two blocks of text and highlights the differences between them. It helps users quickly identify edits, missing lines, or changes between two versions of a document.
Why compare two pieces of text?
Comparing text allows users to see what has been added, removed, or modified between versions of a document. This is useful when reviewing revisions or edits.
Can the tool compare long documents?
Yes, text comparison tools can analyze both short paragraphs and long documents, making them useful for various editing tasks.
Is text comparison useful for developers?
Yes, developers often use text comparison tools to check differences between code files or configuration data.
Does the tool highlight differences automatically?
Yes, once the text is pasted into both fields, the tool scans them and highlights the differences instantly.
Can writers use this tool?
Yes, writers and editors often use text comparison tools to review document revisions and track changes.
Get Started

Compare Two Texts Instantly

Paste two pieces of text and quickly identify differences between them. This text compare tool highlights changes and helps you review edits more efficiently.

Compare Text

No account · No ads · No data stored · Works offline

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