MarkMyWords

Highlight and search text on any page with multiple colors and terms.

MarkMyWords lets you highlight multiple search terms on any webpage simultaneously, each in a distinct color — just like a physical highlighter set. Key Features: Multi-term highlighting — Add as many search terms as you need, each gets its own unique color automatically. Match count badge — See exactly how many times each term appears on the page at a glance. Cycle through matches — Click any highlighted term chip to scroll smoothly to the next occurrence on the page. Regex support — Toggle regex mode to use powerful regular expressions for advanced searches. Case sensitive & whole-word modes — Fine-tune matching behavior from the Settings tab. Persistent highlights — Your search terms are remembered per tab and restored when you reopen the popup. Works on dynamic pages — A MutationObserver ensures newly loaded content (SPAs, infinite scroll) gets highlighted too. No data collection — Everything stays on your device. No servers, no tracking, no analytics. Perfect for researchers, developers, students, and anyone who reads long pages and needs to track multiple concepts at once. Developed with Love by Frontend Master