Audio Equalizer & Bass Booster
Shape your sound with 7 studio-grade frequency bands, instant bass boost, vocal clarification, live audio spectrum analysis, and lossless WAV export — 100% locally in your browser.
Drop an audio file here or Click to Select
Supports MP3, WAV, M4A, AAC, FLAC, and OGG audio tracks.
🔒 Zero Cloud Upload: Audio processing is executed 100% in local memory via HTML5 Web Audio API.
track.mp3
Channels: Stereo • Sample Rate: 44.1 kHz • Total Duration: 0:00🎚️ 7-Band Multi-Frequency Controls (-12 dB to +12 dB)
Key Insights
- Filter Engine Cascaded BiquadFilterNodes
- Frequency Bands 7 Active Bands (60Hz - 12kHz)
- Gain Range -12 dB to +12 dB per Band
- Latency Near-Zero Real-Time DSP
Quick Facts
- Export Format Lossless 16-bit PCM WAV
- Audio Presets 7 Tailored Sound Profiles
- File Types MP3, WAV, AAC, M4A, FLAC
- Max Duration Unlimited Client-Side
Security Standards
- Server Uploads Zero (Air-Gapped)
- Offline Rendering Hardware Acceleration
- Data Tracking None (100% Private)
- Cost 100% Free Forever
How In-Browser Multi-Band Audio Equalization Works
Most online audio equalizers upload your confidential audio tracks and recordings to remote cloud servers to process filters via command-line tools. AG World Tools utilizes the browser's native HTML5 Web Audio API to process high-resolution audio filters directly inside your local hardware:
The 7-Band Equalizer Architecture
- Sub-Bass (60 Hz LowShelf): Enhances deep sub-frequency vibration and sub-woofer low end.
- Bass (170 Hz Peaking): Controls the primary punch and thump of kick drums and bass guitars.
- Low Mid (350 Hz Peaking): Adds acoustic warmth and richness to muddy or thin recordings.
- Mid (1 kHz Peaking): Focuses on the core harmonic body of guitars, keyboards, and human voice.
- High Mid (3 kHz Peaking): Clarifies vocal articulation and brings speech forward in the mix.
- Treble (6 kHz Peaking): Sharpens acoustic presence, percussion transients, and cymbal strikes.
- Air & Sparkle (12 kHz HighShelf): Imparts an open, breathy, professional sheen to the high end.
Frequently Asked Questions
How does the Bass Booster work without distorting the audio?
The Bass Booster preset applies low-shelf amplification at 60 Hz (+8 dB) and peaking gain at 170 Hz (+6 dB). If you hear clipping on already loud tracks, use the Master Volume slider to dial back the pre-gain slightly to leave headroom for the boost.
Are my audio files uploaded to your servers?
No. Audio decoding, real-time filtering, visualizer FFT analysis, and offline WAV rendering are executed 100% on your device using Web Audio API and WebAssembly. Your recordings never leave your computer.
What format is the downloaded equalized audio file?
The output is a lossless 16-bit PCM RIFF WAV file at the source track's native sample rate (e.g. 44.1 kHz or 48 kHz). It plays natively on all media players, smartphones, audio workstations, and editing suites.