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Favorites and recent tool names stay in this browser only. Your files and results are not saved in this workspace.

Favorites

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Install app

If supported, use Install. On Android and desktop, look for Install app in the browser menu. On iPhone/iPad, use Safari → Share → Add to Home Screen. Menu names can vary by browser.

Text Difference Checker

Ready

Compare two texts and see the differences line by line. Added and removed lines are marked. Each text may hold up to 500 lines. Everything runs in this browser, text never reaches a server.

All tools are free to use. File size and processing limits may vary by tool.

How to compare?

Paste two documents and run to check a contract revision or compare two versions. Changed lines are marked. Copy the result and pass it to the team.

How are files processed?

Browser tools keep files on your device. Advanced document tools upload files for temporary server processing; the tool shows this before upload. Web lookups send queries to the server and public lookup services.

Practical guide

Text Difference Checker: Review Revisions

Spotting small contract changes by eye is hard. This tool compares two texts in your browser, highlighting added and removed words. Data stays on your device. Paste old left, new right.

Read the guide →

Practical articles on this topic

Git and Version Control: Basic Commands and Workflows

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Cleaning Line Lists: Duplicates and Version Differences

Product codes, task lists and exported records may contain repeated lines.

Related tools

Word Counter

Count words and characters as you type. Check the character count without spaces for essays, applications and blog drafts, directly in your browser.

How to count? Type or paste into the box; the counters update while you type. Check whether a blog post, assignment or application text hits your target w

Character Counter

See word, character and no-space counts instantly. Counters update as you type. Everything runs in this browser, text never reaches a server.

How to count? Type or paste into the box; stop before crossing the limits. Use it to check homework and application text lengths.

Case Converter

Convert text to UPPERCASE, lowercase or Title Case. Turkish dotted-I rules follow the interface language. Everything runs in this browser, text is never stored.

How to convert? Paste the text and press the style you want; the result appears instantly. Use it to fix headings and form fields. Copy and carry the result

Remove Duplicate Lines

Drop repeated lines from a list; paste the text and the deduplicated form returns. Order is preserved. Everything runs in this browser, data never reaches a server.

How to dedupe? Paste your list and run; the first occurrence stays and the order holds. Handy for cleaning number, SKU or email lists.

Slug Generator

Turn a title into a short URL-safe slug. Turkish and German characters are transliterated and the result cuts off at 80 characters. Everything runs in this browser, the title is never stored.

How to generate? Paste the title and copy the result in address-bar form. Transliteration shortens long titles to 80 characters. Use it for consistent short

Markdown Preview

Preview Markdown instantly. Headings, lists, code blocks and tables are formatted. Everything runs in this browser, text never reaches a server.

How to preview? Write the Markdown source in the box and watch the formatted result. Useful for GitHub, README and documentation drafts. Click through links

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