Bad Grammar is a free Chrome extension developed by vocativinteractive. Falling under the category of Browsers and subcategory of Add-ons & Tools, this extension aims to test the grammar vigilantes in your life by changing every appearance of commonly confused words like its/it's, your/you're, and there/they're/their.

With Bad Grammar, you can quietly terrorize the grammar vigilantes around you. This extension works by randomly altering the usage of its/it's, your/you're, and there/they're/their on any webpage you visit. By installing this extension, you can sit back, relax, and enjoy the chaos it creates.

Whether you're looking to challenge your friends or simply have some fun with grammar, Bad Grammar is an entertaining Chrome extension that adds a twist to your browsing experience. So go ahead, install it, and get ready to light a cigar while the grammar vigilantes scratch their heads.