Drag and drop an audio file or click to select it. Supports MP3, WAV, FLAC, OGG, and AAC formats.
Use the volume slider to increase or decrease the level, or use automatic normalization to balance audio levels.
Click apply and download the audio with your volume adjustments. The original file remains unchanged.
Your audio files never leave your device. All volume adjustments happen in your browser — no server uploads.
No registration, no file limits, no watermarks. Adjust volume on as many audio files as you need, completely free.
Automatically normalize audio levels using peak or RMS detection. Perfect for consistent volume across multiple recordings.
Boost the volume of a quiet voice recording so it is clearly audible on all devices.
Normalize multiple podcast episodes to a consistent loudness before publishing your feed.
Reduce the volume of a loud music track before using it as background audio in a video — then use Add Audio to Video to mix it in.
Fix audio recordings where the microphone gain was set too low during a live event.
| Format | Description | Best For |
|---|---|---|
| MP3 | Compressed lossy audio | Podcasts, voice recordings |
| WAV | Uncompressed lossless audio | Studio mastering, precise adjustments |
| FLAC | Compressed lossless audio | Archival with volume correction |
| OGG | Open-source lossy audio | Web audio normalization |
| AAC | Advanced lossy audio | Mobile and streaming playback |
Use RMS normalization for spoken content — it adjusts based on perceived loudness rather than peak levels.
Avoid boosting volume beyond +6 dB on already-loud recordings to prevent clipping and distortion.
Normalize all tracks in a playlist or podcast series to the same target level for a consistent listening experience.
If the original recording has background noise, consider using the Noise Reduction tool before adjusting volume. After normalization, compress the audio for smaller file sizes.
Adjusting audio volume can be done in your browser or by uploading to server-based tools. Each approach has distinct trade-offs in privacy, speed, and flexibility.
FyleTools uses FFmpeg WebAssembly to apply volume filters directly in your browser. The volume filter adjusts gain linearly, while normalization analyzes the entire waveform to calculate the optimal adjustment. All processing happens on your device with zero server interaction.