Text Diff & Comparison Checker
Compare two text blocks side by side or unified with color coded additions, deletions, line counts, and inline character differences.
How to Use the Text Diff & Comparison Checker
- 1 Paste your base/original text into the left pane.
- 2 Paste your updated/modified text into the right pane.
- 3 View highlighted green additions, red deletions, and summary change statistics in real time.
Methodology & Algorithmic Standards
Computes Longest Common Subsequence (LCS) and line by line difference arrays client side. Maps inline character changes without transmitting proprietary text over the network.
Frequently Asked Questions
Can I compare private code or legal contracts safely? ▼
Yes. All comparison algorithms run locally in client side JavaScript. Your text never leaves your device.
Does it show line numbers and summary stats? ▼
Yes. The tool reports total lines, matching lines, added lines, and removed lines alongside a unified diff stream.
Can I swap the original and modified text? ▼
Yes. Use the "Swap Texts" button to reverse comparison order instantly.
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