Audio Noise Reduction — Free Online

Remove background hiss, hum, and noise from any audio file. Perfect for podcasts, Zoom recordings, voice memos, and interviews.

✓ Free ✓ No Signup ✓ Unlimited ✓ Files Auto-Deleted in 1h ✓ Spectral Gating

Supports: MP3 · M4A · WAV · OGG · FLAC · OPUS · WMA · AIFF  ·  Max 500 MB

Drop your audio file here

or click to browse · MP3, M4A, WAV, OGG, FLAC and more

How to Remove Background Noise

1

Upload your audio

Drag & drop or click to browse. Supports MP3, M4A, WAV, OGG, FLAC and more. Up to 500 MB.

2

Choose strength

Standard works best for most recordings. Aggressive for heavy noise; Subtle for light cleanup.

3

Download clean audio

Click Remove Noise, wait a few seconds, then download your cleaned audio file — free.

Frequently Asked Questions

What types of noise does this remove?

The tool uses spectral gating to remove consistent background noise: HVAC hiss, fan noise, room hum, computer fan noise, electrical hum (50/60 Hz), and microphone self-noise. It works best on steady-state noise rather than sudden sounds like claps or speech from another person.

Will noise reduction affect my voice quality?

At Standard strength, voice quality is well preserved. Aggressive mode removes more noise but may add a subtle artifact (sometimes described as a "watery" sound) to the voice. If you notice artifacts, try Standard or Subtle strength instead.

Is it free? Any limits?

100% free with no account required. Files up to 500 MB, no limit on number of files. Your audio is processed on a secure server and deleted within 1 hour.

Which output format should I choose?

MP3 is best for sharing and uploading to podcast hosts. WAV or FLAC are best if you'll continue editing in a DAW. M4A is ideal for Apple devices and iTunes.