Local, transient audio processing
Warmline accesses audio already playing on your Mac, processes it transiently in memory, and sends the processed signal to the output you selected. This work happens locally on your Mac.
Warmline does not record, save, upload, transmit, or retain your audio. It does not send song titles, listening history, or audio content to the developer or any third party.
Why macOS asks for permission
macOS places system playback access under Screen & System Audio Recording. Warmline requests audio access so it can apply its effects in real time. Warmline does not capture your screen and does not request microphone access for this processing.
What Warmline does not collect
Warmline has no analytics, telemetry, advertising, tracking, accounts, or cloud sync. It includes no third-party analytics or crash-reporting SDK. Preferences such as the selected output and processing settings stay on your Mac.
This support website
This website uses no cookies, forms, analytics, tracking pixels, or remote assets. It does not collect information when you read these pages.
If you choose the email support link, your mail app and mail provider send the message you write. The details you choose to include are used only to understand and reply to your support request.