Text Compare
Input
Paste original and changed text on each side, or load files. Click Compare when both sides have content.
Original (left)
0 bytes
Changed (right)
0 bytes
All processing happens in your browser — your files are never uploaded to a server.
About this Tool
The Text Compare utility performs a side-by-side diff analysis of two texts, highlighting added, deleted, or modified lines. Powered by the high-precision Myers Diff algorithm, it operates entirely in your browser to safeguard source code and contracts.
100% Secure Local Processing Active
This tool runs entirely on your device via WebAssembly and browser Canvas. No files are ever sent to any remote server, ensuring complete data security.
How to Use
Paste the original text into the left editor panel.
Paste the modified text into the right editor panel.
Inspect the highlighted color blocks showing line updates (green for additions, red for deletions).
Core Scenarios & Use Cases
Code Refactoring Verification
Compare two source code files to verify updates, refactoring shifts, or fix logs before committing.
Contract Revision Tracking
Audit changed clauses or revised agreement drafts side-by-side to highlight added and erased clauses.
Config Files Audit
Compare complex json settings or env files to spot discrepancies or broken variables.
Frequently Asked Questions
We use the Myers Diff algorithm to auto-align matching lines, inserting empty spacer rows where lines were added/removed.
Yes, the calculations run 100% locally on your machine, eliminating data leakage concerns.
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