metric-lcs
Zero dependency Metric Longest Common Subsequence implementation in js
mdiff
An LCS Implementaion for Arrays and Strings
text-similarity-node
High-performance and memory efficient native C++ text similarity algorithms for Node.js
@nlptools/distance
Complete string distance and similarity algorithms package with WebAssembly and JavaScript implementations
segment-comparer
Identify what has been added, removed, and unchanged by comparing two segments