What Toolfix is
Toolfix.info is a collection of free, single-purpose web tools: calculators, converters, generators and checkers for people who run websites, online shops and small businesses, plus students and anyone who works with documents. Every tool is meant to do one job well, with a short guide underneath that explains how it works and where its limits are.
Our mission
Many useful utilities sit behind sign-ups, trials or paywalls. We want the everyday ones to be free, fast and honest: no account, no download, and no exaggerated claims about what a tool can do. If a tool can only estimate something, the page says so.
What you will find here
- PDF and image tools: merge PDFs, unlock PDFs, compress images, convert SVG to PNG, encode images to Base64.
- SEO and website tools: meta tag and Open Graph generators, schema markup, .htaccess and redirect rules, URL slugs, keyword density, a PageSpeed analyzer.
- Writing tools: word counter, writing style analyzer, duplicate sentence finder, text summarizer.
- Business and e-commerce calculators: profit and marketplace fees, pricing, break-even, ROAS, CAC/LTV, SaaS MRR, loans and compound interest.
- Health calculators: standard clinical scores such as eGFR, FIB-4 and HbA1c, for education only.
- Everyday utilities: QR codes, passwords, age, GPA and more.
Privacy
Most tools run entirely in your browser, so the text, numbers and files you enter stay on your device. A few tools need an outside service to work (for example, the PageSpeed analyzer sends the URL you enter to Google’s PageSpeed Insights API); those pages say so. We do not ask you to create an account. Ads and analytics on the site are covered in our Privacy Policy.
Accuracy and corrections
We check formulas and fee tables against official sources and date them where rates change. Health calculators use published clinical formulas and are not a substitute for a doctor. If you find a mistake or want a new tool, please tell us through the contact page.