This tool compares two texts line by line and highlights the differences. Added lines are shown in green, removed lines in red. It uses the longest common subsequence (LCS) algorithm for accurate diff results. All processing happens locally in your browser.
Our diff checker compares two texts line by line using an efficient algorithm. It highlights added lines (usually in green) and removed lines (in red), making it easy to spot changes between versions.
Compare code revisions, track document changes, review configuration files, check API response differences, and verify data accuracy. It is an essential tool for developers and technical writers.
Yes. Since all processing is client-side, there are no file size limits beyond your browser memory. However, very large texts (100K+ lines) may slow down your browser tab.