Privacy Policy

Last updated: 2026-10-19

Your source files

Audio and video files you open here are processed inside your browser. The selected source is not uploaded or transmitted to PrivateMP3, and we do not receive its file name, contents, audio tracks or duration. The page keeps access to the local file only while the browser tab is using it. A supporting in-page browser assistant may call editor tools after that file is open; Convert and Save file remain visitor clicks, and the selected media still does not leave the device.

Temporary output storage

When the browser supports it, PrivateMP3 writes the file being produced to origin-private file system storage so a long conversion does not need to keep the complete output in memory. This storage belongs to the PrivateMP3 site inside your browser; the site operator cannot browse it remotely. The next conversion replaces the temporary output file. Clearing PrivateMP3 site data in your browser removes it. If this storage feature is unavailable, the output is assembled in browser memory instead.

A saved MP3, M4A or WAV is downloaded only when you press Save file. Your browser then places it in the download location you choose or have configured.

Analytics

This site uses Google Analytics to count visits and understand which pages and tool outcomes need attention. In addition to ordinary page information such as approximate location, device and browser type, PrivateMP3 sends limited events at each step of using a tool: when a file opens or cannot be opened, when the waveform is ready or fails, when a conversion starts, succeeds or fails, when Save file is pressed, when the browser lacks the required decoder, the first time the size calculator is changed on a page view, with none of the values entered, when a use is chosen in the File check panel (which of playing anywhere, an audio editor, keeping the quality or a size limit, and nothing else), when Copy details is pressed, and when a part is picked for a size limit (with that part's number and the number of parts only). When you open the sample recording instead of a file of your own, the same events are sent with names beginning sample_, so they are counted apart from real files. Each of these events also carries a random eight-character token made when a file opens, so the steps of one open can be counted together. It is not derived from the file. It is sent with those events and kept only in the open page, not saved in your browser, and the next file you open gets a new one. Copy details puts text on your own clipboard; it sends nothing. An open event can include the container type (for example MP4 or Matroska) and how many audio and video tracks it holds; a conversion or save event can include the chosen output format, whether the unchanged packet copy was used and, for a split, the part number; a failure event can include the processing-stage error code.

These events do not include the selected file, its name, its contents, duration or source codec. They describe the tool state, not the media itself.

Advertising

This site is supported by Google AdSense advertising. Third-party vendors, including Google, use cookies to serve ads based on your prior visits to this and other websites. Google's use of advertising cookies enables it and its partners to serve ads based on visits to this and other sites.

You can opt out of personalised advertising through Google Ads Settings. For third-party vendors generally, see aboutads.info. For EEA, UK and Swiss visitors, consent-dependent advertising and analytics storage is denied by default until a choice is supplied through Google's consent service.

Your choices

You can block or delete cookies in browser settings and clear PrivateMP3 site data to remove its temporary output storage. The local conversion engine does not depend on advertising cookies, although blocking scripts or browser features required by the application can affect the page.

Hosting and performance measurement

The site is served as static files by Cloudflare Pages. Cloudflare processes standard request data such as IP addresses in order to deliver and protect the website. Source media conversion does not run on the hosting server.

Cloudflare also injects its Web Analytics performance beacon into the live HTML response. It reports page-load timing and aggregated dimensions such as page path, referrer, country, device type and browser. Cloudflare states that this service does not use cookies to track individuals across customer sites. It does not receive the local media selected in PrivateMP3.

Contact

Questions or corrections concerning this policy can be sent through the Contact page. Do not attach a private media file to a privacy request.