Inject custom JavaScript and CSS into websites
User JavaScript and CSS allows you to inject custom JavaScript and CSS code into any website. Automate repetitive tasks, enhance website functionality, fix broken layouts, or customize the appearance of your favorite sites. Perfect for web developers, power users, and automation enthusiasts. Features include per-site rules, code editor with syntax highlighting, import/export, enable/disable toggles, and extensive customization. Take control of how websites look and behave.
User JavaScript and CSS allows you to inject custom JavaScript and CSS code into any website. Automate repetitive tasks, enhance website functionality, fix broken layouts, or customize the appearance ...
Yes, User JavaScript and CSS offers a free tier.
Unlimited customization. Code editor included. Per-site rules.
User JavaScript and CSS is ideal for Web developers, Power users, Automation enthusiasts.
Popular alternatives to User JavaScript and CSS include tampermonkey, violentmonkey, greasemonkey. Each offers similar functionality with different features and pricing models.