About Web Toolkit
Web Toolkit is a collection of 21 small utilities across 6 categories. Every one of them runs entirely inside your browser.
Why another tools site
Most online utilities are one of two things: a thin wrapper around a server endpoint that receives whatever you paste, or a page so covered in advertising that finding the input box takes longer than the task. This site is built to avoid both.
How it works
- Nothing is uploaded. Formatting, hashing, encoding and image processing all happen with browser APIs on your own machine. Load a tool page, disconnect from the internet, and it still works.
- No accounts. There is nothing to sign up for and no paywall on any tool listed here.
- The tool comes first. The first screen of every page is the tool itself — never a banner, a cookie wall or an advertisement.
Languages
Every tool page, including its FAQ and explanatory text, is available in English, Traditional Chinese, Japanese, Spanish and German. Use the language switcher in the header; your choice is remembered on your device.
How it is paid for
The site is static and costs close to nothing to run. Advertising may appear below the tool, in the sidebar on wide screens, and between content sections — never inside or above the tool, and never as a full-screen interstitial. If advertising ever measurably degrades the experience of moving from one tool to the next, the placement gets removed rather than the standard lowered.
Built with
Astro for static rendering, React islands for the interactive parts, and Cloudflare Pages for hosting. Fonts are self-hosted so no request goes to a third-party CDN.
Suggestions
Missing a tool, or found a bug in a calculation? Let us know — the tool list grows based on what people actually ask for.