Free tools, built to be genuinely helpful.
Helpful-Site.com was built out of personal frustration: most "free tool" websites are cluttered, slow, or bury a simple calculator behind pop-ups and forced sign-ups. I wanted a single place with dozens of genuinely useful calculators, converters, and everyday tools that just work — instantly, with no account required.
Every tool is tested against real-world examples before it goes live. VAT calculations are checked against HMRC guidance. Mortgage repayments are verified against lender amortisation tables. Salary figures are cross-checked against government tax tables. If a tool gives a wrong answer, I fix it — usually within hours of being told.
Helpful-Site.com is an independent project by Ethan C.
The site is designed, built, and maintained by Ethan C — a developer based in the UK with a background in software engineering and product development. Every tool, guide, and piece of content on this site is written and reviewed first-hand — there are no outsourced articles or AI-generated bulk pages.
New tools are added based on what visitors actually ask for, using the built-in feedback button on every page. Accuracy matters more than quantity, which is why we'd rather have 60 tools that work correctly than 600 that don't.
Fast by default
Every tool runs client-side, so results appear instantly with no server round-trip.
Private by design
Your inputs stay in your browser. We don't collect or store anything you type into a tool.
Accuracy first
Every tool is verified against official sources before launch and updated whenever rules change.
Built from real feedback
New tools and fixes come directly from what visitors ask for using the report button.
Helpful-Site.com is free to use and supported by unobtrusive advertising. If you'd prefer an ad-free experience, a low-cost Premium subscription is available — it also syncs your planner and notes across devices. Either way, every tool remains fully functional for free, forever.
Helpful-Site.com runs entirely in your browser — no data is ever sent to a server. Results appear instantly because there is no round-trip. Every tool is verified against official sources (HMRC, IRS, ATO) before launch and updated whenever rules change.
Yes. All tools run client-side in your browser. Any numbers, text, or financial figures you enter are never uploaded to or stored on any server. The site has zero data retention for anything you type into a tool.
Yes. Once the site has loaded, most tools — including the mortgage calculator, unit converter, and text tools — continue to work with no internet connection. A small number of features, such as planner sync for premium users, require connectivity.
All finance and tax calculators are verified against official guidance from HMRC (UK), IRS (US), ATO (Australia), and equivalent authorities for other countries. Results are for informational purposes and should not replace professional financial or tax advice.
Yes. Every tool on Helpful-Site.com is free with no account required and no usage limits. The site is supported by non-intrusive advertising. An optional Premium subscription from £2.49 per month removes ads and adds cross-device planner sync — no core functionality is locked behind it.
Found a bug, have a tool idea, or just want to say hello? Reach us any time at info@helpful-site.com, or use the "Report issue" button found on any tool page. Every message is read personally.