Remove Background Noise from Audio Online Free

The tool uses advanced spectral analysis (FFT-based denoising) to separate noise from useful audio signal. You choose one of five profiles — Voice, Podcast, Music, Hum Removal, or AI — and the algorithm is optimized for that specific type of content, preserving voice clarity and musical detail.

Choose "Voice" for phone calls, meetings, and voice memos. "Podcast" for interviews and talk recordings — it also normalizes loudness. "Music" for songs and instrumentals — gentle processing to preserve dynamics. "Hum Removal" for recordings with electrical buzz. "AI" uses a neural network for the best results on complex, non-stationary noise.

A typical 5-minute podcast episode cleans in 10–30 seconds on the spectral profiles (Voice / Podcast / Music / Hum Removal) on a 2023 laptop or recent phone. The AI profile is slower — about 30–90 seconds for the same 5 minutes — because the neural model has to look at every frame. Big files (over 30 minutes / 200 MB) take proportionally longer; you can keep the tab in the background.

The tool effectively removes: background hiss, fan and AC noise, room ambience, electrical hum (50/60 Hz), wind noise, keyboard and mouse clicks, and general background chatter. It works best on consistent background noise rather than sudden loud sounds.

With Light and Medium strength, the tool removes noise while preserving natural audio quality. Stronger settings may slightly affect tone — use the A/B comparison to find the right balance. The Music profile is specifically designed for minimal impact on audio quality. For further improvement, try the audio enhancer to boost clarity and normalize volume after denoising.

You can process files up to 1 GB. Since all processing happens in your browser, larger files may take more time depending on your device. Files over 150 MB may cause slowdowns on devices with limited RAM.