Q: Is my data secure?
Yes. All processing happens entirely in your browser. No data is ever sent to any server.
Q: What algorithm is used for diffing?
This tool uses the LCS (Longest Common Subsequence) algorithm, the same approach used by Git and other version control systems for computing diffs.
Q: Does it work with any programming language?
Yes. The diff viewer compares text line by line and works with any programming language or plain text content.
Q: What do the colors mean?
Green indicates added lines (present in modified but not in original). Red indicates removed lines (present in original but not in modified). Gray indicates unchanged lines.
Q: Is there a size limit?
Since all processing happens in your browser, very large files (over 10,000 lines) may take a moment to compute. There is no hard limit.