Find out if your website is Accessible and Compliant

Our free ADA and WCAG compliance checker identifies web accessibility issues and gives exact instructions for fixing them.

Outil d’analyse SEO

• Vérifiez l'aptitude de vos images au référencement
• Vérifiez les erreurs réseaux et HTTP
• Effectuez une analyse SEO instantanée de vos pages
• Sauvegardez vos rapports SEO
• Optimisez le référencement de votre site web gratuitement
• Déterminez les mots-clés les plus pertinents
• Comprenez comment Google voit votre site
• Vérifiez la cohérence de vos liens

uild Google searches in any combination of Google supported top level domain, country and language.
A tool for international SEOs

SEO-Hero gives your true position on Google in several datacenters.

See how your site performs, reveal why it's slow and discover optimization opportunities.

You can track historical performance of pages with a free GTmetrix account!

Specificity Calculator was built by Keegan Street.

Calculate CSS strong.

HTML5 UP
... makes spiffy HTML5
site templates that are:

• Fully Responsive
• Built on intelligent HTML5 + CSS3
• Super Customizable
• 100% Free under the Creative Commons

Animista is a place where you can play with a collection of pre-made CSS animations, tweak them and get only those you will actually use.

Code generators for front-end development.

Fontello is a tool to quickly pack vector images into webfonts. Consider it like Twitter Bootstrap, but for images. It builds everything necessary to include graphics into your web pages. Also, fontello has a big built-in collection of open source artworks.

A version of LiveSplit that works on a lot of platforms.

This wonderful website, made with ❤ by Corentin Thomasset , aggregates useful tools for developer and people working in IT. If you find it useful, please feel free to share it to people you think may find it useful too and don't forget to bookmark it in your shortcut bar!

IT Tools is open-source (under the MIT license) and free, and will always be, but it costs me money to host and renew the domain name. If you want to support my work, and encourage me to add more tools, please consider supporting by sponsoring me .

Non-judgmental guidance on choosing a license for your open source project

How it works

We evaluate your color combination using the WCAG 2.0 guidelines for contrast accessibility.
If your combination does not meet the guidelines, we find the closest accessible combination by modifying the color lightness.
We modify the lightness value only, in order to stay as true to the original color as possible.

All in one Information Gathering Tools

Well, I was writing a zine about DNS. And at the end of many of my zines, I say "the best way to learn is to experiment! Do weird DNS experiments and see how it works". But I realized that most people, even if they have a domain, probably aren't comfortable doing weird DNS experiments on a domain that's important to them.

So I figured I'd create a domain that's just for playing around (messwithdns.com) and let anyone set DNS records on it. You're very encouraged to play around and break things.

To test Linux Distros.