Simple utilities for marketers, analysts, and developers. No sign-up, no ads, no tracking. Everything runs in your browser.
Free Marketing Tools
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Browser-based utilities that respect your privacy
Create trackable campaign URLs with UTM parameters for Google Analytics 4.
Open tool LiveFormat, validate, and beautify JSON data instantly in your browser.
Open tool LiveEncode and decode Base64 strings online. Works with text and files.
Open tool LiveCount words, characters, sentences, and paragraphs in your text.
Open tool LiveWrite Markdown and see rendered HTML in real time with live preview.
Open tool LiveTest regular expressions with real-time match highlighting and details.
Open tool LiveGuides on analytics, marketing, and web privacy
You want to write something for the web — a README file, a blog post, some documentation. Should you write it in Markdown or HTML?...
Jan van Dijk · Jun 5, 2026
Regular expressions — regex for short — look like someone fell asleep on the keyboard. ^\d{3}-\d{4}$ isn’t exactly inviting. But once a few symbols click...
Jan van Dijk · May 18, 2026
Have you ever copied a link and noticed it was full of strange codes like %20, %3D, or %26? Maybe you pasted a search result...
Jan van Dijk · Apr 29, 2026
You’ve been handed a data file. It might be a list of customers, a product catalog, or an export from some tool. Now you have...
Jan van Dijk · Apr 11, 2026
A few years ago, a small e-commerce client asked me: “We’re spending €2,000 a month on ads. Is it working?” I couldn’t give them a...
Jan van Dijk · Apr 4, 2026
When Google announced it would phase out third-party cookies in Chrome, I got calls from three clients the same week asking what it meant for...
Jan van Dijk · Mar 31, 2026
Independent web analyst, Amsterdam
I got tired of hunting across dozens of websites for simple everyday tools — buried under ads, pop-ups, and sign-up forms. So I built what I wished existed: clean utilities that just work.
Learn more about meNo sign-up. No tracking. Everything runs in your browser.