Boost audio volume online — up to 800%
Make any audio file louder with a professional-grade volume booster and 10-band equalizer. All processing happens in your browser — your files never leave your device.
How it works
Upload your audio
Drag & drop any MP3, WAV, OGG, FLAC, or AAC file. Nothing is uploaded to a server.
Enhance & preview
Boost volume, shape the EQ, apply studio presets. Listen to changes in real-time.
Export & download
Click Export to render the enhanced audio. Download your boosted WAV file instantly.
Why Hearably Studio?
Professional Volume Booster
Amplify audio up to 800% using the same 3-band loudness maximizer used in professional mastering. Our look-ahead limiter prevents all distortion — even at maximum boost.
10-Band Parametric EQ
Shape every frequency from 31Hz sub-bass to 16kHz air. Boost vocals, cut rumble, add sparkle — with surgical precision across 10 fully adjustable bands.
100% Private & Browser-Based
Your audio files never leave your device. All processing runs locally in your browser using the Web Audio API. No upload, no server, no data collection.
Studio Presets
One-click audio profiles: Music, Bass Boost, Vocal Clarity, Cinema, Gaming, Late Night. Each preset configures the EQ and compression for optimal results.
Frequently Asked Questions
How do I boost audio volume online?
Upload your audio file to Hearably Studio, drag the volume slider to your desired level (up to 800%), and click Export. Unlike basic volume boosters that cause distortion, Hearably uses a professional-grade look-ahead limiter that catches audio peaks 5 milliseconds before they clip — giving you crystal-clear amplification at any volume level.
How do I make a quiet MP3 louder without distortion?
Most online tools simply multiply the waveform, which clips at 0dBFS and creates harsh digital distortion. Hearably Studio runs a full mastering-grade DSP chain: 3-band Linkwitz-Riley crossover, per-band compression, and a custom look-ahead limiter. This means you can safely boost a whisper-quiet MP3 to 800% volume while preserving every detail of the original recording.
Is it safe to boost volume above 100%?
Yes — if you use the right tool. Standard volume boosters cause speaker-damaging distortion because they have no peak protection. Hearably's online studio uses the same DSP engine found in professional audio mastering: a look-ahead limiter that sees peaks 5ms before they arrive and smoothly reduces gain to prevent any clipping. The result is louder audio with zero distortion, safe for any speakers or headphones.
What audio formats does Hearably Studio support?
Hearably Studio accepts MP3, WAV, OGG, FLAC, AAC, M4A, and WMA files. All processing happens entirely in your browser using the Web Audio API — your files are never uploaded to any server. This means your audio stays 100% private, and processing is instant regardless of file size.
What is a look-ahead limiter and why does it matter?
A look-ahead limiter is a professional audio tool that delays the signal by a few milliseconds so it can detect peaks before they happen. When a peak is detected, the limiter smoothly reduces the gain just enough to prevent clipping — unlike a standard limiter that reacts after distortion has already occurred. Hearably Studio uses a 5ms look-ahead buffer implemented as a custom AudioWorklet, the same technology used in professional mastering studios.
Is my audio uploaded to a server?
No. Hearably Studio processes audio entirely in your browser using the Web Audio API and OfflineAudioContext. Your files never leave your device — there is no upload, no server processing, and no data collection. This makes it the most private online audio enhancer available.
Want this on every website?
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