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Trusted by 100K+ users in 143 countries
Jay PadimalaMarch 20265 min read
Video Tools5 min read

Normalize Audio Online Free — Fix Volume Levels

Normalize audio volume online for free. Fix inconsistent volume levels in podcasts, music, and recordings to broadcast standard.

950 words

Access and pricing

Supported tools include 5 free on-device uses per day, shared across eligible tools. On compatible devices, guest access needs no sign-in. Signed-in users also get 5 daily eligible on-device uses. AI and cloud processing use credits separately.

New accounts can claim 20 welcome credits once. Eligible offers in MiOffice can earn up to 80 reward credits; offer conditions apply.

Starter costs $6.99/month and includes 250 credits at each paid renewal plus unlimited eligible local processing. Unused credits roll over. The $2.99 Day Pass covers 24 hours of eligible local processing; AI and cloud credits are separate.

Compare tools using a representative file and inspect the export. Check supported formats, device compatibility, processing location and the displayed cost before starting. This article is published by MiOffice; consider its recommendations with that affiliation in mind.

Pricing

Access and pricing updated October 30, 2026. This editorial update does not indicate a new test run.

Inconsistent audio volume is one of the most common problems in recordings. One person speaks louder than another in an interview. Background music drowns out narration. A podcast episode is too quiet compared to the previous one. Audio normalization fixes all of these issues by adjusting volume to a broadcast-standard level.

MiOffice normalizes audio to -16 LUFS (the broadcast standard) in your browser using FFmpeg WebAssembly. Works with both audio files and video files. No upload, Guest access on supported tools; AI requires sign-in and credits.

How to Normalize Audio

  1. 1

    Open the Audio Normalizer

    Go to the audio normalizer.

  2. 2

    Upload Your File

    Drag and drop your audio (MP3, WAV, M4A, AAC, OGG, FLAC) or video (MP4, MOV, MKV, WebM) file.

  3. 3

    Download Normalized File

    Click process. Your audio is normalized to -16 LUFS broadcast standard.

Platform Loudness Standards

PlatformTarget LUFSMiOffice Output
Spotify-14 LUFSCompatible
Apple Podcasts-16 LUFSExact match
YouTube-14 LUFSCompatible
Broadcast TV-24 LUFSClose (louder)
Amazon Music-14 LUFSCompatible

When to Normalize

  • --Podcast episodes: Ensure every episode has consistent volume for your listeners.
  • --Interview recordings: Balance volume between speakers who sit at different distances from the microphone.
  • --Music playlists: Normalize tracks from different albums so they play at similar volume.
  • --After audio extraction: Audio from video often has inconsistent volume. Normalize after using Video to MP3.

Privacy

Audio normalization happens locally in your browser. Recordings of meetings, interviews, and private conversations are processed in your browser. FFmpeg WebAssembly handles all processing on your device.

Process Your Video Now

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Frequently Asked Questions

What is audio normalization?
Audio normalization adjusts the volume of an audio file to a standard level (-16 LUFS for broadcast). This ensures your audio sounds consistent with other professional content and does not blast the listener or force them to turn up the volume.
Does normalization work with video files?
Yes. Upload an MP4, MOV, or MKV file and the audio track is normalized while the video is preserved unchanged.
Will normalization distort my audio?
No. Normalization adjusts the overall volume level, not dynamic range. Quiet parts stay quiet relative to loud parts. The entire track is scaled to meet the target loudness.
What is LUFS?
LUFS (Loudness Units Full Scale) is the industry standard for measuring audio loudness. -16 LUFS is the broadcast standard used by Spotify, Apple Podcasts, YouTube, and most streaming platforms.
Can I normalize multiple files to the same level?
Process each file through the normalizer. Since all files are normalized to the same -16 LUFS target, they will all have consistent volume.

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Jay Padimala

CEO & Founder

Jay Padimala is CEO and Founder of MiOffice, a product of JSVV SOLS LLC.

View all posts by Jay Padimala
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