Free tools · No sign-up · Runs in your browser

Free tools for Google Ads, Shopping and CSS

Three tools for jobs I do every week as a Google Ads specialist: working out what a click can cost before an order stops paying for itself, checking an Editor import before Editor skips half of it without telling you, and checking product titles before Merchant Center sees them. Your numbers and files stay in your browser, and nothing is tracked.

The tools

Your data stays in your browser

Every tool on this site is plain HTML and JavaScript that runs on your own device. There is no server behind it that receives your numbers or files, no analytics, no cookies, and no fonts or scripts loaded from anyone else.

Each tool page also carries a Content Security Policy with connect-src 'none' and form-action 'none', which tells your browser to block the page from sending data anywhere (you can see it near the top of the page source). The only thing the site stores is your choice of light or dark theme, in your own browser, and only if you use the switch.

Why these tools

I've worked with Google Ads for more than 15 years, as an advertiser, in-house, as a self-employed consultant and as a partner in an agency. A good share of what goes wrong in an account has nothing to do with strategy. It's a ROAS target nobody checked against the margin, an import where Editor skipped rows without a word, or a feed where the brand sits at character 90 of the title.

These are the checks I run myself (the CSV checker is a port of the script I run before every Editor import), so you might as well have them too.

Who's behind this

I'm Anton Hoelstad, a Google Ads specialist in Copenhagen and a co-founder of Zoliro, a CSS partner for Google Shopping. My main site is in Danish at antonhoelstad.dk, and there's a short, factual page about me here in English as well. If you'd like help with your own account, here's how I work with clients.