There are some wonderful and useful free tools available for Web Designers and Developers. Here's a small taste of some.

 

The Google Suite: Google has created an entire set of tools for free.

 

Google Docs - A great replacement or addition to Microsoft Office or an alternative to OpenOffice.

GrandCentral - This is great for freelancers abound. The greatest feature for them is the ability to automatically send calls to voicemail during specific time periods. It helps a lot when you have clients in different timezones and you're trying to sleep.

Google Analytics - A great way to see statistics on your websites.

Google Webmaster Central - Another way to see statistics and errors on your websites.

Google App Engine - Although you're currently limited to 3 applications, it's a free way to play or host your Python projects on Google's servers.

 

Skype - Free internet calling, also available on the Sony PSP for those who actually own a PSP mic. Supposedly, they are considering an iPhone application.

 

Evernote - a wonderful tool for taking screenshots, pictures, notes and having them synchronize to all your computers and even the free iPhone application. Definitely handy for having your notes everywhere.

 

Remember the Milk - A wonderful to-do list application. Also has a mobile version with a 15-day trial. You need to sign up for their Pro services to continue use of it afterwards.

Tada List - Another great to-do list written with Ruby on Rails.

 

Notepad++ - A super-powered version of Notepad. Has a massive plug-ins community base.

 

What tools do you use? What did I miss? Any suggestions for alternatives?