Small tools, maintained with care.
thisuseful is an independent collection of browser utilities built to remove friction from recurring tasks—not a content farm or a wrapper around someone else’s software.
One job at a time
Each page is organized around a specific task, with sensible defaults and a clear result.
Local when possible
Most text, image, and file tools process input on your device. Exceptions are labeled.
No account wall
You can use the core utilities without creating a profile or joining a mailing list.
1Why this exists
I kept rebuilding the same small helpers for everyday work: cleaning a pasted list, checking JSON, resizing an image, comparing two drafts, or calculating a subnet. thisuseful grew from that personal toolbox.
The goal is not to publish every possible calculator. A tool belongs here when its purpose is clear, its result is understandable, and it saves more time than it takes to learn.
2How tools are reviewed
Before publishing a tool, I test its main workflow, invalid input, empty states, keyboard navigation, mobile layout, and generated downloads. Tools that depend on a browser API or external data source explain that limitation on the page.
3How the site is funded
The site may display advertising after a visitor provides consent. Ads do not change tool results, and declining advertising does not disable the tools. There are currently no paid placements or affiliate recommendations in the tool library.
4Corrections and requests
If a result looks wrong, a description is unclear, or you have a practical tool request, send a note. Useful reports include the tool name, browser, input format, and the result you expected.