www.onlinewebcheck.com
Check your HTML/XHTML and CSS, including HTML5. Powerful & easy to use.
html2xhtml.richarea.com/demo/
Translate HTML to XHTML
www.online-code.net
Online-Code.net is a individual website. I'm an ASP.NET developer, for the loading speed, I always want to decrease the page size. So I need minify the JavaScript and CSS file sometimes.I was able to find a bunch of software to do so, free ...
www.web2generators.com
Tools to speed up and ease web development.
www.geo-tag.de/generator/en.html
Use this HTML Geo-Tag-Generator to create html geo tags for your WEB-Site and show your location to the community.
www.ipaddressguide.com
Free web-based IP address and domain name tools for Ping, Traceroute, DNS Lookup, NSLookup, CIDR, Geolocation, WHOIS, HTML Validator and Speed Test.
freetools.webmasterworld.com
The official collection of search, social, PPC and webmaster tools at Webmaster World. Provide your feedback! Analyze your site with our free SEO tools: from Meta descriptions and keywords, to page speed and link checks, these online tools can be a sol ...
www.tutorialspoint.com/seo_tools.htm
A collection of SEO and Web Developer Tools
w3c.github.io/developers/tools/
Developer Tools from W3C Developers
www.inspyder.com/free-index
Free website tools from Inspyder. These online tools are provided free as a complement to our desktop SEO software products.
tools.devshed.com
Webmaster Tools, Developer Tools, Programming Tools. There are a lot useful tools here.
infohound.net/tidy/
HTML Tidy Online is a tool for checking and cleaning up HTML source files. It is especially useful for finding and correcting errors in deeply nested HTML, or for making grotesque code legible once more.
ctrlq.org/beautifier/
With Code Beautifier, you can deobfuscate and reformat your source code written in JavaScript, HTML, CSS, PHP or other programming languages.
