Text Compare for Mac

Text Compare for Mac is a browser-based tool that accepts two text blocks and returns a structured diff. It supports line-level and word-level diff, Unicode text, and large inputs, making it suitable for code reviews, manuscript revisions, and note comparisons on macOS.
Conceptually, the tool normalizes inputs according to user-selected options, runs a diff algorithm (line-based by default, token-based in word mode), and produces a diff list plus a similarity score. The left input represents the original text, the right input the revised text; additions and deletions are surfaced as distinct segments for easy auditing.
Unique value arises from configurable normalization (ignore case, whitespace, and punctuation), robust handling of line endings, and a lightweight export path for downstream processing. The tool does not perform semantic analysis; it focuses on exact textual changes, aiding reproducibility in technical and academic workflows.
Core features include dual text inputs, selectable diff mode, per-segment diff output, a similarity metric, and export options (plain text or JSON). Typical use cases include code diffs, manuscript comparison, and data extraction from notes, when speed, accuracy, and simplicity are priorities.