Song Slower — Speed & Reverb

Change web audio speed and reverb, or edit local songs offline with pitch controls and MP3/WAV export.

Find a different tempo with Song Slower. Enable effects on a playing web page, choose a Slowed, Nightcore or Practice preset, and adjust speed and reverb. Keep the original pitch for practice, or let pitch follow speed for a different sound. Effects keep running when you close the popup. Stop restores the player's original settings. The included local-file editor also works offline. Import your own audio, adjust speed and pitch, add reverb or a warm tone, select a section, save sound presets, and export MP3 or WAV. Try the original built-in demo before choosing a file. Audio processing happens on your device. The extension contains no analytics, account system or audio upload service. Web effects start only when you enable them. Website links open only when you select them. Web mode supports standard audio/video players in the main page, one tab at a time. Protected media, cross-site embedded players and browser-internal pages may not work. Web mode does not download or record streaming audio; MP3/WAV export is for files in the local editor. Learn more: https://songslower.com/ Support: contact@songslower.com