Normalize Audio Online
Fix quiet or inconsistent audio levels instantly. Set a target loudness and normalize — free, private, no install.
How to Normalize Audio Volume Online
1. Open the Volume Normalizer on cut.audio 2. Drop your audio file (MP3, WAV, FLAC, or OGG) 3. Choose a target loudness — pick a preset (-14 LUFS for streaming, -16 for podcasts, -23 for broadcast) or set a custom level 4. Click Normalize 5. The tool analyzes your file, measures its current loudness, calculates the exact gain needed, and applies it 6. Download your normalized file The entire process runs in your browser using WebAssembly. Your audio never leaves your device.
What Does Normalizing Audio Mean?
Normalization adjusts the volume of an audio file so it hits a target loudness level. If your recording is too quiet, normalization boosts it. If it's too loud, it brings it down. Unlike just cranking the volume knob, proper normalization: • Measures loudness using LUFS (the broadcast standard) • Applies uniform gain across the entire file • Prevents clipping — if boosting would cause distortion, the gain is automatically limited • Preserves the dynamic range — quiet parts stay relatively quiet, loud parts stay relatively loud
Common Normalization Use Cases
• Podcast episodes — make every episode the same perceived loudness so listeners don't touch their volume knob • YouTube videos — match the -14 LUFS standard so your audio isn't quieter (or louder) than other videos • Voice memos and recordings — boost a recording that came out too quiet • Music distribution — hit the loudness target for Spotify, Apple Music, or other platforms • Presentations — ensure your audio clips play at a consistent level during a talk
Loudness Targets by Platform
Different platforms have different loudness standards: • Spotify: -14 LUFS • Apple Music: -16 LUFS • YouTube: -14 LUFS • Apple Podcasts: -16 LUFS • Broadcast TV (EBU R128): -23 LUFS • Broadcast TV (ATSC A/85): -24 LKFS The normalizer shows you the measured loudness of your file before and after processing, so you can verify you've hit the right target.
Try it now — free in your browser
No download. No signup. Your files never leave your device.
Open Volume NormalizerRelated Guides
Frequently Asked Questions
Normalization applies a single gain adjustment — it's the least destructive audio process possible. If you export as WAV or FLAC, quality is perfectly preserved. MP3 export involves re-encoding, which is standard for any audio processing.
Turning up the volume in a player doesn't change the file — it just amplifies on playback. Normalization permanently adjusts the file's amplitude so it plays at the right level everywhere, on every device and platform.
No. If the original recording is distorted from clipping, normalization can't repair it. Normalization adjusts level — it doesn't fix damage. It's best used to boost quiet recordings or match loudness standards.