Free Online Bass Booster
Add deep, powerful bass to any audio file. Upload, boost, preview, and download — all in your browser. 100% free and private.
Coming soon · Join the betaComing soon
This tool is currently in development. Download our desktop app for full functionality.
Download Desktop AppHow it works
Upload an audio file (MP3, WAV, OGG, FLAC)
Adjust the bass boost amount and frequency range
Preview the boosted audio in real-time
Download the bass-boosted result as WAV
What's included
Adjustable Boost
Control exactly how much bass to add. From subtle warmth to earth-shaking sub-bass, dial in the perfect amount.
Frequency Targeting
Choose between sub-bass (20-60Hz), mid-bass (60-200Hz), or both. Different settings for music vs. voice.
100% Private
All processing happens in your browser using Web Audio API. Your files never leave your device.
Who is this for?
Music Enhancement
Add punch and depth to music tracks that sound thin or lack low-end energy.
Headphone Compensation
Compensate for headphones or speakers that lack bass response by boosting low frequencies.
Voice Warmth
Add warmth and depth to voice recordings, podcasts, and voiceovers for a richer, more professional sound.
Video Soundtracks
Enhance the low-end impact of video soundtracks for more cinematic, immersive audio.
Boost Bass in Any Audio File — Free Online Tool
Make any song or recording hit harder with deeper, more powerful bass. This browser-based bass booster uses a precision low-shelf filter to amplify low frequencies without muddying the rest of your mix. Choose between sub-bass (20-60Hz) for that chest-thumping EDM feel, mid-bass (60-200Hz) for warm, full-bodied vocals, or boost both for maximum impact. Automatic gain limiting prevents clipping and distortion. All processing happens locally using Web Audio API — your audio files are never uploaded anywhere.
Frequently asked questions
How does bass boosting work?
The bass booster uses a low-shelf EQ filter to increase the volume of low frequencies (typically 20-200Hz) while leaving mid and high frequencies unchanged. This adds depth and weight to music and voice recordings.
Will it distort my audio?
Moderate bass boost sounds clean and natural. Extreme settings may cause clipping if the original audio is already loud. The tool includes automatic gain limiting to prevent distortion.
Can I boost bass in music?
Yes — it works great on music. Boost sub-bass for EDM and hip-hop, or add mid-bass warmth to acoustic recordings and podcasts.
Is it free?
What is the difference between this and the equalizer?
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