Web design tools

Free tools to help webmasters to build a website and improve its appearance and ease of use. Content management systems, themes and plugins for CMS are not included in this list.

Building components

SVG Edit
Online editor of SVG images, works in the browser.

Draw.io
Online editor to draw diagrams, very intuitive. It has no more features than Inkscape or LibreOffice Draw, but is somewhat simpler and can be used anywhere, with a smartphone or a connected tablet. Lot of shapes are available. Was formerly named diagram.ly.

Mondrian
Vector editor, sort of simpler online Inkscape, whose code is open source too (in CoffeeScript unlike SVG-Edit). Suitable for creating interactive demos with the library compiled to JS. Not really SVG compatible however.

Logo Maker
To create 3D titles, online tool on this site.
It is also possible to create embossed logos with the Script-Fu menu of Gimp, or like in this page with SVG code inserted into the HTML code. See the XML folder in this site.

Chart tools
These Google's tools build charts from your data you can include on your pages with a JavaScript code.

Wordle: Tag Cloud
This online service generates a tag cloud from a URL, by analyzing the keywords contained on the site! Useful in SEO to know the semantics of a topic, it is also a mean, by creating an image from a sentence, to illustrate a page quickly...

Drawing or generating images

Krita

Freehand paint software

MyPaint, Krita, Paint.NET are designed to replace the easel and the palette. The image at right is a screen capture of Krita.

beFunky
A simple way to enrich a web page: Turn photos into drawings with one click (Line artopia effect). To do this you have just to load or share a photo for an instant processing! You can also make a HDR.
Your videos may be converted to cartoons too.

DevianArt Muro
To paint anywhere, without a trestel, a free online tool built in HTML 5 with basic functions but a lot of filters.

Picozu
Less well finished than the previous one, but it is more user friendly. Based on HTML 5.

Comix Editor
Simplistic comic editor in HTML. The idea is to modify predefined objects. The editor requires Chrome.

Image Analyzer 
Image processing, does not allow drawing but various improvements on existing photos such as morphological operations.

Favicon
Tools to make the small image.

DarkRoom
Alternative to Lightroom of Photoshop, but for Linux, features to manage a stock of photos and make manipulations in the rendering.

Tunning

Browser Turns Editor
Plugin for Firefow that edits a web page directly useful for the development and arrangement of elements.

CSS 3 Maker
Generator for CSS 3 style of various attributes.

Images and templates

Where to find free images?

Webfont
Add system-independent fonts to your page, requires a JavaScript code.

See also...