FAQ
Questions, answered.
The short answers about pricing, accounts, privacy, limits and how the 585 tools across 29 categories work.
Are the tools on utils.sbs free?
Yes. All 585 tools are free to use. There is no per-file charge, no paid tier and no account requirement.
Do I need an account to use a tool?
No. Open a tool page and use the workspace immediately. There is no sign-in, email capture or subscription step.
Are my files uploaded to a server?
The tools are designed to process input locally in the browser whenever the platform API allows it. Files are not uploaded to a server for processing. Some tools depend on browser APIs that may not be available in every browser.
Is there a file size limit?
There is no server-side file limit. Practical limits depend on the device: available memory, CPU and the browser's maximum canvas or media size. Very large videos, PDFs or images may be slow or fail to decode on low-memory devices.
Can I use the tools offline?
Once a tool page has loaded, its processing runs locally. If the page is already open and the browser keeps it available, the tool can continue without a network connection. Reloading or opening a new page still needs the site.
How accurate are the calculators?
Calculator pages show the formula or method used. Results are computed from the values you enter with standard JavaScript arithmetic. They are reference calculations, not financial, medical, legal or safety-critical advice.
Do the tools work on mobile?
Yes. The pages are responsive and work in modern mobile browsers. Very large files may be limited by the device's available memory and by mobile browser API support.
How are the tools built and reviewed?
Every tool has its own page with its input, output, engine, limitations and, where relevant, the calculation method. The methodology page explains the local-first architecture, accuracy, privacy and review process.
Still curious? The tools are local-first, free and do not require an account.