Jenee

Text Diff

Visualize differences between two texts or code with clear color-coded display. Supports file upload, diff export, and responsive display.

Text 1 (1) vs Text 2 (1)
Text 1 Information
Characters: 0
Line breaks: 1
Words: 0
Text 2 Information
Characters: 0
Line breaks: 1
Words: 0
Diff Summary
Additions: 0
Deletions: 0
Unchanged: 1

How to Use

  1. STEP 1
    Enter or paste the content you want to compare into the left and right text areas, or use the 'Upload File' button to upload files.
  2. STEP 2
    Differences are displayed with color coding: additions (green), deletions (red), and modifications (blue). Line numbers are also shown.
  3. STEP 3
    Use 'Swap' to exchange left and right, 'Clear' to reset both, and 'Export Diff' to save the results.
  4. STEP 4
    Options allow you to 'Ignore Whitespace', 'Ignore Case', and 'Show Line Numbers'.
  5. STEP 5
    Choose between 'Side by Side' and 'Inline View' display modes. Mobile devices automatically use an optimized vertical layout.
  6. STEP 6
    Check detailed statistics for each text and diff summary at the bottom.
  • Large texts and code can be compared quickly, but extremely long content may depend on browser performance.
  • Fine differences in text (punctuation, character variations) are accurately detected. Options allow ignoring whitespace and case differences.
  • Please be careful when entering personal or confidential information.

Tips

1

The diff tool was developed for Unix in the 1970s and is still used as the foundation technology for version control systems like Git and SVN.

2

Among programmers, 'diff' is commonly pronounced as 'diff', which is an English word meaning 'difference' or 'distinction'.

3

The green and red color coding seen on GitHub and GitLab is based on this diff tool's display format.

4

In large-scale software development, hundreds to thousands of diffs can be generated daily.

5

There are multiple diff display formats including Unified diff, Context diff, and Side-by-side diff, used according to different purposes.

FAQ

  • QUESTION 1

    Can I upload files?

    Yes. Use the 'Upload File' button to upload various text file formats including .txt, .md, .js, .css, .html, and more.

  • QUESTION 2

    What if I want to ignore spaces and line breaks?

    You can check 'Ignore Whitespace' in the options to ignore whitespace differences during comparison.

  • QUESTION 3

    Can I save the diff results?

    Yes. Use the 'Export Diff' button to save the diff results as a text file with line numbers and change markers.

  • QUESTION 4

    What file formats are supported?

    Supports a wide range of formats including text files (.txt), markdown (.md), programming code (.js, .ts, .jsx, .tsx, .css, .html), and configuration files (.json, .xml, .csv).

  • QUESTION 5

    Can it handle large files?

    Files with thousands of lines can be compared without issues. For very large files (tens of thousands of lines), processing time may increase depending on browser performance.

  • QUESTION 6

    Is it suitable for code comparison?

    Absolutely. It accurately detects differences in indentation, whitespace, variable names, and function additions/deletions - essential for code reviews.

  • QUESTION 7

    Is it mobile-friendly?

    Yes. On mobile devices, it automatically switches to a vertical layout with L (Left) and R (Right) labels, making it easy to view differences even on small screens.

  • QUESTION 8

    Is it secure?

    All processing is done within your browser, and no text data is sent to servers. You can safely use it with confidential documents and files containing personal information.

This information is general content. Please also refer to official sites and specialized books for details.