Autolinker.js

Autolinker.js is a robust JavaScript utility designed to automatically detect and convert various patterns like URLs, email addresses, phone numbers, and social media mentions/hashtags (Twitter, Instagram, YouTube, TikTok, Facebook, Soundcloud) within plain text or HTML into clickable hyperlinks. The current stable version is `v4.1.5`. The library maintains an active release cadence, frequently publishing minor and patch updates, often focusing on performance enhancements and bug fixes. A key differentiator is its rewritten URL parser in `v4.0.0`, which utilizes a finite state machine for `O(n)` linear time performance, significantly improving speed and preventing 'catastrophic backtracking' issues common with regular expression-based parsers. Unlike many alternatives, Autolinker.js is meticulously designed to correctly handle HTML input, avoiding the creation of nested anchor tags or inadvertently modifying existing `href` attributes, making it particularly suitable for processing rich text content where correctness and performance are critical.