One line of code, and the page is yours.
Boost injects custom JavaScript and CSS into any webpage, straight from the browser, applied the moment you enable it. Per-domain rules, a syntax-highlighted editor and no page reload in between.
Highlights
Per-domain rules
Different JavaScript and CSS for different websites, applied automatically when the page loads.
Real-time injection
Enable a script and it's in, no page reload required.
Editors that behave
Syntax highlighting for both JavaScript and CSS in a proper code editor.
Mobile, including Orion
Works on desktop and mobile browsers, including Orion Browser on iOS with touch-friendly controls.
Beats strict CSP
Injects even on sites with a strict Content Security Policy.
Big scripts, saved
Chunked storage handles scripts larger than 100KB, persisted across sessions.