Compare two text snippets or code files side-by-side to highlight added, modified, and deleted lines.
A Text Diff Tool analyzes two blocks of text or source code files line by line using string alignment algorithms to highlight exact additions, removals, and modifications.
A text diff tool compares two text inputs side-by-side and highlights the exact differences between them — additions, deletions, and modifications. OneToolBox's Text Diff uses the Myers diff algorithm to produce both split (side-by-side) and unified diff views, identical to Git's diff output. All comparison happens locally in your browser — your code, documents, and configurations never leave your device.
The tool uses the Myers diff algorithm (the same algorithm used by Git), which produces the minimum edit distance between two texts for optimal, human-readable diff output.
Yes. The tool works with any text content including source code, configuration files, markdown, CSV data, and plain text documents.
The tool can compare texts of any size limited only by your browser's memory. For best performance with very large files (>1 MB), the unified view is recommended.
No. All text comparison happens entirely in your browser. Your code, documents, and sensitive content never leave your device.
