Tools

Free tools for checking domains and URLs, converting HTML entities and writing maths with LaTeX.

• HTML Decoder/Encoder Turns HTML entities such as < and & into plain characters, and back.
• URL Redirect Checker Checks each domain over http and https, with and without www, and shows the status code and redirect chain.
• URL Validator Checks a list of URLs or domains, one per line or comma-separated, and lists the ones that are not valid.
• Math Editor A rich-text editor that renders LaTeX formulas with KaTeX.

Need a different tool? Ask on the contact page