20+ handy free online tools for web designers and developers

20+ handy free online tools for web designers and developers

It seems that online web design tools are becoming more and more popular and increasingly in demand among the web designer community. That might be the reason why new tools are constantly being released almost every day. It’s a known fact that work preassure can kill productivity and creativity. These handy online tools can be a huge time-saver at times of serious work stress.

With the introduction of all these online web design tools, now it is possible to design and develop a most modern looking website purely using your web browser in quick time.

Here, I am presenting you with a random list of more than 20 online tools which I have found really useful over the years. I am sure these tools can make a web designers life a little easier. There will be so many other amazing tools out there which I have missed to include, Feel free to bring up the details in the comments.




There are a thousand great design tools out there, including pen and paper. Sketch out your designs, then upload them to Connect-A-Sketch. Drag and drop your sketches into your prototype. Create connections between sketches and make your prototype interactive. Explore your own interactive design, or easily share it with your users.



Solidify is the quickest way to prototype interface screens for user testing feedback. Learn where people get confused by page interactions. Solidify makes it easy to upload mockups and wireframes to quickly create clickable prototypes. Quickly created prototypes can be shared with users to test their understanding of directed flows. User test reports reveal problematic interactions in the clickable prototype.


Resizer is a responsive design bookmarklet that allows you to quickly change the dimensions of a webpage to test responsive design. Visit any site that you wish to test responsive dimensions on, and click the Resizer bookmarklet on your bookmarks bar.


ColorHexa.com is a free color tool providing information about any color. Just type any color values (view full list here) in the search field and ColorHexa will offer a detailed description and automatically convert it to its equivalent value in Hexadecimal, Binary, RGB, CMYK, HSL, HSV, CIE-Lab, Hunter-Lab, CIE-Luv, CIE-LCH, XYZ and xyY. ColorHexa will also generate matching color schemes such as complementary, split complementary, analogous, triadic, tetradic and monochromatic colors. So you will be able to know what colors best suit with the one you chose. It is also possible to blend colors together or create a gradient between them


Browsercam is a cross browser compatibility testing tool which can be used to See any browser / operating systems combination, Test code and dynamic functionality on any platform, Use our bank of test machines remotely.


Imageless css buttons simplified: CSS Button Generator will create beautiful css buttons for you to use on your web pages without the need for any images. When you have styled your button to your liking, simply click on the generated button to get your css style code.


Start an HTML5 project in 15 Seconds – Initializr is an HTML5 templates generator to help you getting started with a new project based on HTML5 Boilerplate. It generates for you a clean customizable template with just what you need to start!


Pixlr is a free online photo editor. Edit, adjust and filter your images. No registration jump right in!


A powerful online Photoshop-like CSS gradient editor, image to CSS converter and much more.


Gridpak is the starting point for your responsive projects, improving your workflow and saving time. Create your responsive grid system once using the simple interface and let Gridpak do the heavy lifting by generating PNGs, CSS and JavaScript.


Explore, create and share color themes — the web-hosted application for generating color themes that can inspire any project. No matter what you’re creating, with Kuler you can experiment quickly with color variations and browse thousands of themes from the Kuler community.


Fontomas – easy iconic fonts composer


Vizuali is a new innovative scrapbooking tool for collecting your favourite visual content from around the web. Collections are incredibly visual, presented in a beautiful, organised manner.


hextone: convert any color values from hex to rgb.


Like taste and smell, color is a sense that is processed by our brains in multiple dimensions. Yet traditional methods of choosing colors on computers are limited to obscure sliders and flattened two-dimensional viewers. With ColoRotate, you can work with colors in 3D, in real time, and in a way that matches how our minds process color.


DropMocks is the easiest way to create and share beautiful image galleries online. Just drag your image files onto this page, and we’ll do the rest.


Stripemania is a simple and free web 2.0 tool to create seamless diagonal stripes for your designs. You are able to choose the size of the stripes and the spacing between those. You can even add color gradient effect for all of your stripes.


Every website, including yours, needs a privacy policy Iubenda is the most stylish and effective way to generate one. Generate a privacy policy in seconds. Easy. Fast. Beautiful.

Dirty Markup

DirtyMarkup combines the power of HTML Tidy, CSS Tidy, JS Beautify, and the Ace editor to effortlessly clean up your messy code. Just paste your code into the editor and press “clean”.

XHTML Character Entity Reference

This page contains the 252 allowed entities in HTML 4 and XHTML 1.0, as outlined in section 24 of the official HTML 4 specifications, published by the W3C.


Placebox.es is a free image placeholder service which both novice and experienced web designers can use in their template designs. The service is 100% free and you can use it as much as you like and on any page or project you wish.

This article is translated to Serbo-Croatian language by Jovana Milutinovich from Web Geeks Resources.

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