Privacy and your audio

Your audio stays on your device

Songs and audio are decoded, processed and exported in your browser. We do not upload your audio, filenames, artist tags or other file metadata. The MP3 encoder is included in our website files and runs locally.

Optional usage analytics

On the live website we use PostHog’s EU service to understand page visits, which tools and controls are used, processing times, success and failure counts, and download starts. Technical events may include a random job ID, selected processing settings, audio duration, sample rate, channel count, browser/device category and a sanitized error category. A download-start event cannot confirm that your browser finished saving a file.

What we do not record

We do not record sessions, screen contents, typed text, your audio, filenames, artist tags, file metadata, email addresses, raw error messages or stack traces. We do not create identified person profiles. Full page queries and URL fragments are excluded from our events. We do not request microphone access or precise location.

Cookies and preferences

Analytics uses PostHog’s cookieless mode with in-memory browser storage. It does not set analytics cookies or store a persistent analytics identifier in this browser. PostHog temporarily uses the request IP address, browser user-agent string and website host to generate a daily anonymous identifier, then removes the IP and user-agent fields before storing cookieless events. PostHog receives ordinary connection information to process requests; cookieless measurement is not a promise of complete anonymity. Your optional analytics preference is stored locally on this browser. We honor supported Do Not Track and Global Privacy Control signals. Local downloaded copies and normal private review previews do not send analytics.

External services and hosting

PostHog’s script and analytics requests are loaded from its EU endpoints. Google Fonts may load fonts from Google. These services and our hosting/security providers receive ordinary web connection information, such as IP addresses and request headers. Hosting providers may keep their own access and security logs. Your audio is not included in these requests. Music and social links open their respective services when you choose them.

Troubleshooting and contact

Each processing job has a random job ID. The full troubleshooting report is kept on your device and is shared only if you choose to copy or email it. Reports can be matched to a captured job ID when optional analytics is enabled and the event is successfully received. For support or privacy questions, email [email protected]. Please do not send audio unless requested.

Local audio and downloads

Leaving or reloading a tool discards its working audio. Files you download remain wherever your browser saves them. Analytics can be blocked or disabled without affecting processing, previews or downloads.