What kinds of noise can it remove?

Steady, consistent background noise like hiss, electrical hum and fan noise — sounds that stay constant throughout the recording.

Will it remove noise that only happens occasionally, like a dog barking?

No, this is built for continuous background noise — a one-off sound event needs to be edited out manually rather than filtered.

Does denoising affect the voice or music quality?

There's some tradeoff inherent to any noise reduction — heavier denoising removes more noise but can subtly affect the clarity of what's underneath, so it's worth comparing before and after.

Does Audio Denoiser upload my files to a server?

No. Audio Denoiser runs entirely in your browser using on-device processing, your files never leave your device.

Audio Denoiser

Remove background noise (hiss, hum, fan noise) from an audio clip.

Runs in your browser

Drop an audio file here

Choose File

Uses an FFT-based adaptive noise filter, higher values remove more noise but can also soften wanted audio, start around 12 dB and adjust to taste.

About this tool

Background hiss, hum from electrical interference, or a fan running in the background are common problems in recordings made outside a proper studio, and they're distracting even when the actual voice or music underneath is fine. This tool removes steady background noise like hiss, hum and fan noise from a clip, cleaning up a recording without needing professional audio restoration software.

Frequently asked questions

Audio Normalizer

Normalize an audio clip's loudness to a consistent streaming/podcast level.

Silence Remover

Automatically cut silent gaps out of an audio file.

Audio Converter

Convert audio files between common formats.

Text to Speech

Convert written text into natural-sounding speech.

Speech to Text

Transcribe your speech into text using your microphone.

Trim Audio

Cut an audio file down to a specific start and end time.

Merge Audio

Combine multiple audio files into one.

Audio Volume Booster

Increase or decrease the volume of an audio file.

Compress Audio

Reduce audio file size while keeping quality.

Audio Speed Changer

Speed up or slow down an audio file.

Vocal Remover

Remove or isolate center-panned vocals from a stereo song.

Ringtone Maker

Turn a song or audio clip into a ringtone for iPhone or Android.

PDF Tools

Merge, split, compress and convert PDF files.

Image Tools

Compress, resize, crop and convert images.

Link & QR Tools

Shorten links and generate QR codes and barcodes.

Video Tools

Compress and process video files, right in your browser.

Developer Tools

JSON, encoding, hashing and text utilities for developers.

SEO & Web Tools

Meta tags, sitemaps, schema markup and other on-page SEO utilities.

Data & Spreadsheet Tools

Clean, convert and inspect CSV, TSV and tabular data.

File Tools

Archive, inspect and convert files, right in your browser.

Business Tools

Invoices, quotations, receipts and other business documents.

Social Media Tools

Resize images for social platforms, count hashtags and preview posts.