diff is a robust JavaScript library for finding the differences between texts, JSON, and other data formats. It generates clean, human-readable patches, allowing developers to easily identify and visualize changes. Widely used for version control systems, code comparison tools, and text editors, diff supports various output formats, including unified diffs and HTML. Its powerful algorithms efficiently highlight added, removed, and modified content, streamlining debugging and collaboration workflows.
The diff npm package has had an inconsistent release frequency since its initial release in 2011. Releases were more common in the early years (2011-2016) and have become less frequent since 2017. There have been periods of inactivity lasting over a year, followed by occasional releases. May 2025 saw 3 releases. No releases have occurred so far in September 2025.
The npm package "diff" experienced fluctuating downloads between March 2024 and September 2025. Downloads generally increased throughout 2024, peaking in October. While 2025 saw sustained high download numbers, September 2025 shows a significant drop, likely due to incomplete data for the month.