Spoof Me

Spoof Me is a privacy and browser-testing extension for Chrome and Firefox. Instead of changing only the user agent, it applies coordinated identity profiles across language, timezone, platform, screen size, device type, memory, CPU cores, touch support, and other browser-exposed signals. Choose a built-in identity or create your own, switch it across tabs instantly, and receive a warning when a website attempts fingerprinting. Settings stay local and browsing data is not collected.