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Free Noise Reducer Online

Remove background noise from audio using filters and noise gate. Perfect for podcasts, voice recordings, and music. No install, no sign up. 100% private.

Background Noise Removal

Drag & drop your audio file here

or click to browse • MP3, WAV, FLAC, OGG, M4A, WebM, AIFF, MP4 • Max 50MB

How to Remove Background Noise

  1. Upload Your Audio

    Drag and drop or browse to select your audio file. We support MP3, WAV, FLAC, OGG, M4A, WebM, AIFF, and MP4 formats.

  2. Adjust Filter Settings

    Set the high-pass filter to remove low-frequency rumble, the low-pass filter to remove high-frequency hiss, and the noise gate threshold to silence quiet background noise.

  3. Or Use a Preset

    Choose from Voice, Music, Podcast, or Aggressive presets for quick professional results.

  4. Preview and Export

    Click "Play Preview" to hear the cleaned audio. Click anywhere on the waveform to play from that point. When satisfied, click "Export & Download".

Why Use ChangerAudio Noise Reducer?

No Sign Up

No account needed. No email required. Just open and use instantly.

No Install

Works directly in your browser. No software, no plugins, no downloads.

100% Free

No watermarks, no hidden limits. Forever free for personal and commercial use.

Multi-Stage Cleaning

High-pass filter, low-pass filter, and noise gate work together for comprehensive noise removal.

Frequently Asked Questions

How does the noise reducer work?

The noise reducer uses a three-stage approach: a high-pass filter removes low-frequency rumble (air conditioning, traffic), a low-pass filter removes high-frequency hiss (tape noise, electronic interference), and a noise gate silences quiet background noise below the threshold.

What is a high-pass filter?

A high-pass filter allows frequencies above the cutoff to pass through while attenuating frequencies below it. Use it to remove low-frequency rumble, hum, and handling noise.

What is a noise gate?

A noise gate silences audio that falls below a threshold level. It's effective for removing background noise during pauses in speech or music.

Will noise reduction affect audio quality?

Some quality loss is inevitable when removing noise, but our algorithm minimizes artifacts. Start with conservative settings (Voice preset) and increase aggressiveness only if needed.

Is my audio uploaded to a server?

No! All audio processing happens locally in your browser using Web Audio API. Your files never leave your device, ensuring 100% privacy.

Can I use the output commercially?

Yes, all exports are royalty-free. You can use them for personal or commercial projects.