Web Tools

Small tasks that come up when building or debugging web pages: escaping a string so it survives a query parameter, escaping characters so they render as text rather than markup, producing a QR code for a link, or checking what the browser is actually reporting about the current device.

All of these except Device Info are pure text or image transformations that run in the page.

URL Encoder

Encode/Decode URL strings.

HTML Entity Encoder

Convert characters to HTML entities.

QR Code Generator

Create QR codes from text/URL.

Device Info

View IP, UA, and Screen info.

How these tools behave

Device Info is the one tool on the site that makes a request to a third party, in order to look up the public IP address your connection presents. That is stated on its page.
QR codes are generated in the page; the text you encode is not sent anywhere.

Frequently asked questions

What is the difference between encoding a URL and encoding HTML entities?

URL encoding makes a string safe to travel inside a web address, replacing characters such as spaces and ampersands with percent escapes. HTML entity encoding makes a string safe to display inside a page, so that characters such as < and & are shown as text instead of being read as markup.