AES Encryption Explained: How It Works and Why It Matters
Jun 23, 2026
Diff Checker & Text Compare
Compare two texts and find the differences. Supports side-by-side and unified view with line-level and word-level comparison.
- Home
- Laravel Tools
- Diff Checker
Original Text
Modified Text
Additions: 0
Deletions: 0
Changes: 0
Comparison Result
Enter text in both fields to see the differences highlighted here.
How to Use
- Paste or type your original text in the left panel and your modified text in the right panel.
- Differences are highlighted automatically in real-time as you type.
- Switch between Side-by-side and Unified view modes to see the diff in your preferred format.
- Toggle Line vs Word level to see changes at the granularity you need.
- Use the Swap button to exchange original and modified, or Clear to reset both fields.
Tip
Green highlights show added content, red shows removed content, and amber shows changed lines. The tool also detects invisible differences like trailing whitespace, tabs vs spaces, zero-width characters, and no-break spaces. Click Example to see how texts that look identical can have hidden differences.
Frequently Asked Questions
How does the diff algorithm work?
This tool uses the Longest Common Subsequence (LCS) algorithm to find differences between texts. It first compares line by line, then for changed lines it performs a word-level comparison to highlight specific changes within a line.
What is the difference between Side-by-side and Unified view?
Side-by-side shows the original and modified text in two columns, making it easy to compare visually. Unified view shows a single merged view with + and - prefixes indicating additions and deletions, similar to the unified diff format used by Git.
Can I compare large files?
Yes, the tool runs entirely in your browser and can handle reasonably large texts. For extremely large files (thousands of lines), there may be a brief processing delay as the diff algorithm runs client-side.
Is my data sent to a server?
No. All processing happens 100% client-side in your browser. Your text never leaves your machine. This tool is safe for comparing sensitive or confidential data.
Related Tailwind Tools
Last updated: 24 Jun 2026
Blog
Latest from Our Blog
CSS Gradient Generator: Create Stunning Gradients for Your Website
Jun 23, 2026
Diff Checker: How to Compare Text and Files Effectively
Jun 23, 2026
JSON Validation: How to Validate and Fix JSON Data
Jun 23, 2026
Regex Testing: How to Test and Debug Regular Expressions
Jun 23, 2026
SSL Certificate Checker: How to Verify SSL/TLS Certificates Online
Jun 23, 2026