These pages explain the tools on Utilza in plain language: image files, PDFs, code and data formats, text cleanup, SEO checks, and the math behind the calculators. A guide stays short, says what the tool can and cannot do, and links to the page where you run it.
Latest
Resize a photo to the width it is shown, save WebP where the page can use it, and compress with a quality you can compare before you replace the original.
Check a photo, a PDF, and a Word, Excel, or PowerPoint file for hidden fields, then download a copy with those fields removed before you send it.
Price your income can carry, the full mortgage, and rent versus buy for the years you plan to stay. The figures are estimates, not a decision.
See total interest on a fixed loan, what extra payments do to a mortgage, and how upfront fees change APR compared with the rate you were quoted.
Pretty-print JSON that already parses, jump to the line and column when it does not, and open a tree when the document is too deep to scan as text.
Combine PDFs in the order you choose, extract the pages you need, and drag thumbnails to reorder, rotate, copy, or delete pages. The files stay in your browser.
Generate a random password, see what makes it weak, then store the bcrypt string. Argon2id is not available in this tool.
The list above is every published guide, newest first. Topics follow the same groups as the tools:
If a topic has no guide yet, the tool page itself still has a short explanation and the form.
A guide explains one tool. It does not store your files, and it does not run the tool for you. Anything you type or upload stays in the browser on the tool page, the same way it does when you open that tool directly.
Guides are added one tool at a time. A missing guide means the write-up is not published yet. The tool stays on its category page.
No. The guides and the tools are free to open. There is no sign-in.
No. The guide describes the tool. The tool page is where you enter data and get a result.
No. A guide is a normal web page. Files are handled on the tool page, in your browser.
Only published guides appear here. You can still open the tool from its category page.
Yes. Every tool page works on its own. The guide is there when you want the longer explanation.
