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About NechVibes
NechVibes is a set of 31 calculators, unit converters and text tools that run entirely as JavaScript inside your browser tab. There is no account, no dashboard and no server-side processing of anything you type into a tool.
Why the tools run client-side
Every calculation, conversion and text transformation on this site happens on your device, not on a server. When you use the percentage calculator or the word counter, the numbers or text you enter are read by JavaScript already loaded in the page and never sent anywhere. You can check this yourself: open your browser's network panel, use any tool, and watch that no request goes out carrying your input.
This is a deliberate choice, not a limitation worked around. It means the site has nothing to store, nothing to log, and nothing that could leak, because the input never reaches us in the first place. It also means the tools keep working if your connection drops after the page has loaded.
The only things a page does request from elsewhere are the Google Fonts stylesheet used for the site's typefaces, and — only after you accept the cookie banner — the Google Analytics script. Neither of those requests carries anything you type into a tool.
What NechVibes deliberately does not offer
A few categories of tool are common on sites like this but cannot honestly be built as pure client-side JavaScript, because they depend on a live external feed or a server doing work on your behalf. Rather than fake them, NechVibes does not offer:
- Currency conversion with live rates. Exchange rates change constantly and require a server pulling from a live feed. A converter that quietly uses a stale or fixed rate would give you a wrong answer that looks confident.
- IP address lookup. A browser cannot see your public IP address or its geolocation without asking a third-party server, which defeats the point of a tool that keeps your data local.
- Internet speed test. Measuring real throughput needs a server on the other end to transfer data against, which is infrastructure this project does not run.
- Sitemap crawlers or URL shorteners. Both need a server to fetch other websites or to store and redirect short links — neither can exist as code running only in your tab.
- Email validation via MX lookup. Checking whether a domain can actually receive mail means querying DNS from a server; a browser cannot do that lookup itself.
The rule is simple: a tool that looks like it works but quietly returns nothing useful is worse than no tool at all. If something cannot be built honestly as client-side JavaScript, it does not go on the site.
What the site does offer
Thirty-one tools split across three categories — calculators, converters and text tools — each built around a real, specific question rather than a generic keypad. Every page carries at least one piece of content a competitor cannot copy in five minutes: a derived formula, a computed table, or a documented edge case that explains why the tool behaves the way it does. That content lives underneath the tool itself, because the tool always comes first.