ready — local
Volume/Gain Adjuster & Normalizer
Adjust audio volume or normalize loudness. Processing happens entirely in this tab — no upload.
Drop audio files here, or click to choose
How this works
This tool uses ffmpeg.wasm to run FFmpeg in the browser. For volume adjustment, it uses the volume filter. For normalization, it uses the loudnorm filter (EBU R128) to measure and adjust loudness to -23 LUFS. All processing happens locally — no upload to a server.
Common uses
Boosting quiet podcast episodes, reducing volume of overly loud music, normalizing multiple tracks to a consistent loudness level, or preparing audio for video platforms with loudness standards.