About Toolfrnd
Toolfrnd is an independent studio that builds small, focused web tools for everyday work. Every tool runs entirely in your browser so your inputs stay on your device. We do not sign you up, we do not track you across the web and we do not upload your files.
Our Mission
Most online tool sites are heavy: popups, sign up walls, tracking scripts everywhere and ads that outnumber the content. Toolfrnd is deliberately the opposite. Each tool is a single lightweight page you load, use and close. No account, no download, no data collection beyond what the ad network needs to serve a relevant ad.
Who Runs Toolfrnd
Toolfrnd is run by a small editorial team with backgrounds in web development, finance and health content. Tools are designed and built in-house. Content is written by the editors below and reviewed before each release.
- Developer tools are built against the published IETF or W3C specification for that format (RFC 4648 for Base64, RFC 7519 for JWT, RFC 4122 for UUID, ECMAScript for regex). Where the browser offers a native API like Web Crypto we use it rather than reimplement.
- Finance calculators use the standard textbook formulas (future value of an annuity for SIP, standard compounding formula for interest). Outputs are planning estimates, not financial advice.
- Health calculators use clinically accepted formulas (WHO bands for BMI, Mifflin-St Jeor for BMR, EFSA and US NAM guidance for hydration). They are informational, not medical advice.
Editorial Standards
Our published guidelines, applied to every tool page:
- Every formula or claim is tied to a named standard or peer-reviewed source.
- Articles are written by our editors, not auto-generated. AI assistance is used for drafting only, never as the final text.
- Every tool page shows a last-updated date so you can tell when a page was last touched.
- Health and finance pages carry a reviewer badge and a clear disclaimer that they are not professional advice.
- We disclose when an external library is used. Only the QR code generator loads one small library from a CDN; everything else is standalone.
Privacy by Default
Every tool runs client side. Your inputs, text, numbers, images and files never leave your browser. We serve ads through Google AdSense, which places cookies for personalization. See our Privacy Policy for the full list of what is collected and how to opt out.
How We Pay for Hosting
Toolfrnd is free and ad supported. A small number of relevant advertisements are shown on each page by Google AdSense, which follows the content policies at support.google.com/adsense. If ads bother you, a reputable ad blocker will hide them. We appreciate the support when you leave them on since that is what keeps the tools free.
Suggest a Tool
Do you use a repetitive calculation, conversion or format that could become a tool? Send us the idea from the contact page. Small, focused tools are the ones we build best.
Correction Policy
If you spot a mistake in a formula, an outdated reference or a bug in any tool, write to us from the contact page and we will fix it. Every correction updates the last-updated date on the affected page.
Contact
For feedback, partnership or press enquiries, see the contact page.