Remove background noise from audio online — free
Quick answer Standard spectral noise reduction with a strength slider, or Studio AI speech enhancement (Pro) for a real model-based clean-up pass.
Reduce steady noise (fan, AC, hiss), or run Studio mode for real AI speech enhancement. 15MB max (Pro: 20MB).
Free to try · No signup required · Commercial use allowed · How we test · About VoxCraft
Remove background noise from audio online for free with VoxCraft. Upload a recording, choose Standard or Studio (AI) mode, and download a cleaner version in seconds — no account required. Standard mode uses spectral noise reduction to pull down steady background noise (fan hum, room tone, AC, light hiss) while keeping speech intact.
Studio mode (Pro) runs DeepFilterNet, a deep-learning speech-enhancement model in the same class of approach as tools like Adobe Podcast Enhance. Instead of only subtracting a noise profile from the spectrum, it reconstructs what the speech should sound like — which helps on roomy, low-quality, or non-stationary recordings that a simple noise gate cannot fix.
Most free “noise reducers” only offer one spectral pass. VoxCraft pairs a free Standard path with an optional AI Studio path so you can match the tool to the recording: steady hum vs messy real-world speech. For creator workflows, denoise often sits between capture and publish — after you extract audio from video, before you transcribe, or before you normalize loudness for YouTube.
In practice, “remove background noise” is not the same job as “make any bad recording perfect.” Sudden claps, overlapping talk, and heavy music beds need different tools. Use this page when the problem is continuous background energy under a main voice — the most common case for podcasts, voice memos, and interview mics.
How it works
- Upload your recording (15MB max, 20MB with Pro — output is mono).
- Choose Standard (fast, free) or Studio (AI enhancement, Pro).
- In Standard mode, set the strength slider — higher removes more noise but can start to affect speech quality.
- Tap Remove noise and listen to the result before downloading.
Who uses this
Podcast cleanup
Reduce a constant room hum picked up by an entry-level microphone — or run Studio mode for a genuinely polished, publish-ready pass.
Voice memos
Clean up recordings made in noisy environments like a car or café.
Interview audio
Pull down background hiss before transcribing or publishing.
Pre-transcription cleanup
Denoise before running through the Transcribe tool to improve accuracy on noisy source audio.
Tips for better results
- Start around 0.4–0.5 strength in Standard mode and increase only if noise is still obvious — aggressive settings can make voices sound thin or watery.
- Standard mode targets steady noise (hum, hiss, fan). Studio mode handles a wider range of degradation because it models speech, not only a noise floor.
- Studio mode is limited to about 6 minutes per file (AI pass cost/time). For longer files, use Standard or split with the trim/cut tool first.
- Denoise before converting to a heavily compressed MP3 when possible — lossy encode-after-clean usually sounds cleaner than clean-after-encode.
- If the file is stereo music with vocals, expect different results than mono speech; this tool is optimized for spoken-word cleanup.
- After denoise, check loudness with Normalize if you are preparing a podcast or YouTube upload.
Frequently asked questions
What is the difference between Standard and Studio mode?
Standard is spectral noise reduction — fast, free, strong on steady hum and hiss. Studio (Pro) runs an AI speech-enhancement model that reconstructs speech and can help when the room or mic quality is poor, not only when the noise is a flat hum.
Is this free?
Standard mode is free to use within the site’s current free-tier limits and does not require an account. Studio AI mode is available on Pro plans. See pricing for current limits.
Can it remove sudden noises like coughs or door slams?
Standard mode is built for continuous background noise, not isolated transients. Studio mode can improve overall speech clarity on messy recordings, but it is not a dedicated “de-click” editor for single events.
How does this compare to Adobe Podcast Enhance?
Both Studio-style tools use AI speech enhancement rather than a simple EQ. Adobe’s product is polished and account-based. VoxCraft’s free Standard path needs no signup; Studio mode offers a similar class of AI cleanup for eligible plans, plus you stay in the same toolkit for convert, trim, and transcribe.
What file types and size limits apply?
Typical uploads include common speech formats (for example MP3, WAV, M4A) up to the tool’s current size limit (15MB on Free, 20MB with Pro; the uploader always shows your current limit). Output is optimized for speech cleanup workflows.
Should I denoise before or after transcription?
For noisy sources, denoise first, then run transcribe. Cleaner speech usually improves word error rate, especially on Urdu/Hindi or accented English.
Will it damage music or sound effects?
Speech-oriented denoisers can dull music and ambiences. Prefer this tool for voice-first files. For music masters, use a dedicated audio editor.
Is my audio stored?
Processing is for generating your download. See the privacy policy for retention details for uploads.
How do I remove fan noise or AC hum from a recording?
Use Standard mode, which is built for steady noise. Start with a medium strength, listen, and raise it only if the fan is still obvious. There is a dedicated walkthrough on removing hum, hiss and fan noise.
Related VoxCraft tools
From the VoxCraft blog
How to Extract Audio from a Video File (No Software Needed)
Pull the audio track out of a video for podcasts, transcription, reuse as voiceover or clean-up — using a simple browser tool, no desktop editor required.
TutorialsHow to Merge and Trim Audio Clips Without Installing an Editor
Learn how to cut silence, remove mistakes and join intro, voiceover and outro into one clean file — entirely in the browser, no desktop DAW required.
TutorialsHow to Remove Background Noise from a Recording (Free, No Software Install)
A practical guide to cleaning fan hum, room tone and light hiss from voice recordings in the browser — when denoise helps, when it cannot, and a simple step-by-step workflow.