Misc

Find out what your browser size is.

Get a unique URL that shows every request made to it.

Merge and diff files online.

Generate redirect codes for your .htaccess files.

Make HTTP requests with custom parameters and headers.

Generate and customize QR Codes.

Get the weather with a sweeet UI.

This tool lets you combine multiple effects to create complex pure CSS objects.

Quickly set up one-question surveys.

Create invoices instantly, without even needing to sign up.

Send someone here to help them figure out their browser and computer configuration.

Get quick access to URLs for various common social network actions.

Find out more about the technologies behind a site.

Find out how much a link has been tweeted before sharing it.

Find out if a site is down for everyone, or just you.

Draw things right there on a site, then share the result.