Firebug
100% free, firebug integrates with Firefox and puts web development tools at your fingertips. You can monitor CSS, HTML, and JavaScript live in any web page; you can also de-bug and edit anything on the web pages. Firebug can be your eyes measuring and illustrating all the margins and sizes for you when the CSS boxes don’t line up correctly and you can’t find out why.
In CSS, all elements are made up of boxes known as borders, content, margin and padding. Firebug will shade all the elements in different colors to easily differentiate between the different aspects of CSS. A great popular and powerful web development and design tool.
Vecteezy
This is a fantastic web design tool offering vector art for you to use on your website. There are plenty of free images to choose from, but also a selection of premium vector images for you to purchase.
Uptime Robot
Uptime Robot will monitor all your websites every 5 minutes to ensure they are all up and running totally free. It has a simple user friendly dashboard where you can see at a glance all the stats for each of your sites. You can monitor up to 50 websites and get notification of any down time on any of your sites by email, SMS, RSS, Twitter or Push notifications for iPad/iPhone.
It now supports IPv6 and can monitor IPv6 sites. At any one time with a few clicks of the mouse you can start, stop or delete all or any of the monitors on your websites. Uptime Robot is very useful tool to have when you have a large number of websites to keep track of.
FreeMind
FreeMind is a high productivity tool that is a free mind mapping software written in Java. It helps to organise all your thoughts into one easy place linking from one aspect to another all on one page. It is one of the easiest mind mapping software’s to use and certainly very useful for webmasters with several sites to maintain.
Live Pipe UI
This is a great suite of controls and widgets for web 2.0 applications using prototype JavaScript. It also includes a small list of extras of the following: Event, Behaviour, Cookie and Hotkey.
iPhoneMock-up
iPhoneMock-up lets you create a user interface for iPhones using a drag and drop system. You can find this tool useful and very much handy for your upcoming projects.
Redmine
Redmine is an all in one project management solution, you can manage a lot of projects and assign tasks to many different team members if you so wish. You can manage documents and files. It also tracks time and creates charts and calendars. This is great project management software for all web designers.
Yuuguu
This tool is great for instant web conferencing and online meetings. Yuuguu is a screen sharing multi-platform tool for Mac, Windows and Linux users to be able to participate in meetings and conferencing. Yuuguu is a great tool for working together on documents from anywhere in the world making it possible to work together in different countries and time zones. It also has the capabilities to brand and use personal customization.
Dropbox
Dropbox is a clever tool for storing and sharing all your documents and files with other team members from different computers in the network. All you need to do is invite people to your dropbox where they can access any documents or files you have placed in there. This is a very good tool for collaborative working as well as cloud computing.
Mockingbird
A simple to use drag and drop interface Mockingbird allows you to create a mock-up of a website in minutes. When you have created a mock-up of a website Mockingbird will create a link so that you are able to share the website mock-ups with other people such as customers and clients who need to know how to navigate one of your websites.
You are able to add as many pages of a website as you like and link them all together. With nothing to download or install as it is web based this makes it the perfect web design tool.
Toggl
toggl is a web based tool to create the perfect time tracking solutions for you. Great if you are a freelance web designer who gets paid by the hour. With the power of the internet many of us are able to work from anywhere in the world not just from an office. This tool can be accessed anywhere there is an internet connection. It can also create charts and other data for analysis. This enables you to track time efficiently and be able to bill quickly and efficiently on time.