Privacy Policy
Last updated October 31, 2026. MicTest is built around one core promise: your microphone audio never leaves your browser.
Overview
This policy explains what information MicTest ("we", "us") collects when you use mictest.dev, and how it's used. MicTest has no user accounts, no sign-up, and no login — you can use every tool on the site anonymously.
By using MicTest, you agree to the practices described in this policy. If you don't agree, please don't use the site.
Microphone & Audio Data
Every tool that uses your microphone — Mic Test, Mic Recorder, Sound Level Meter, Voice Frequency Analyzer, Background Noise Analyzer, and Echo Test — processes audio entirely inside your browser using the Web Audio API. We never have access to your microphone stream, and no audio is ever transmitted to, or stored on, any MicTest server.
Recordings made with Mic Recorder are held only in your browser's memory for as long as the tab stays open. Closing the tab, navigating away, or refreshing the page permanently discards them. There is no server-side storage of recordings, and no way for us to retrieve one after the fact — because we never had it.
Cookies & Local Storage
MicTest itself sets no tracking cookies. We use your browser's localStorage to remember one thing: your light/dark theme preference. That preference stays on your device and is never sent to us or anyone else.
Our advertising partner (Mediavine) and our analytics provider (Microsoft Clarity) may set their own cookies or use similar technologies. See the Advertising and Analytics sections below.
Advertising (Mediavine)
MicTest is supported by advertising managed by Mediavine, a third-party ad management partner. Mediavine and its advertising partners may use cookies, device identifiers, and similar technologies to show ads, measure how they perform, and, where permitted, personalize them based on your visits to this and other sites. This can involve information such as your IP address, browser and device details, and approximate location.
Depending on where you are, you may be shown a consent banner that lets you accept or decline personalized advertising. You can also opt out of interest-based advertising through aboutads.info, the Network Advertising Initiative, or, in the EU/UK, Your Online Choices. Google's own advertising settings are at Google's Ads Settings.
For details on how Mediavine handles data, see the Mediavine Privacy Policy. Your microphone audio is never shared with advertisers — it never leaves your browser (see Microphone & Audio Data above).
Analytics
We use Microsoft Clarity, a free analytics tool, to understand how people use MicTest — for example, which tools get used and where visitors get stuck. Clarity collects usage data such as pages visited, clicks, scrolling, device and browser type, approximate location, and session replays and heatmaps of on-page interactions, and may set its own cookies (such as _clck and _clsk) to do so. This data is shared with Microsoft, which processes it under the Microsoft Privacy Statement.
Clarity records how you interact with the page, not your microphone: audio from your microphone is processed only in your browser and is never captured or sent to us or to Clarity.
Third-Party Links
Some pages link to other sites — for example, Joteo for wave and frequency physics calculators. Those sites have their own privacy policies, and we're not responsible for their content or practices. We'd recommend reviewing a site's own policy before sharing any information with it.
Children's Privacy
MicTest isn't directed at children under 13, and we don't knowingly collect personal information from children. If you believe a child has provided us information, contact us and we'll remove it.
Data Security
MicTest is served entirely over HTTPS. We don't ask for personal information, don't require accounts, and don't operate a database of user data. Our host (GitHub Pages) may keep standard server access logs common to any web host, and the third-party advertising and analytics services described above collect data under their own policies.
Changes to This Policy
We may update this policy as MicTest changes — for example, if we add or change advertising or analytics partners. Any update will be posted on this page with a revised "last updated" date at the top.
Contact Us
Questions about this policy? Get in touch or email vinithablog@gmail.com.