Audio Equalizer
Shape bass and treble with a 10-band EQ — hear changes live, processed in your browser
1. Pick audio
Adjust bass, mids, and treble across 10 frequency bands (32Hz–16kHz) from -12 to +12dB. Slider changes apply to playback instantly so you can tune by ear, then save the result as WAV, MP3, M4A, or FLAC. Everything runs inside your browser.
What you can do
- ✓10 bands (32Hz–16kHz), ±12dB each
- ✓Live preview while playing, compare with original
- ✓Presets like bass boost and clear voice
- ✓Save as WAV, MP3, M4A, or FLAC
How to use
- 1Add an audio file
- 2Adjust the bands while listening
- 3Click Render and download the file
Supported formats · MP3 · M4A · WAV · OGG · FLAC → WAV · MP3 · M4A · FLAC
An equalizer that splits your audio into 10 frequency bands, each adjustable from -12 to +12dB. Slider moves apply to playback instantly so you can tune by ear, and a compare button flips between original and adjusted sound. When it sounds right, click Render and save it as WAV, MP3, M4A, or FLAC. Everything runs inside your browser, so the file is never uploaded to a server.
How to use it
- 1Select or drag in an audio file (MP3, M4A, WAV, OGG, FLAC).
- 2Play it and shape the sound with the band sliders or presets.
- 3Click Render and download the resulting WAV.
When it comes in handy
Great for giving thin recordings more bass, taming low-end rumble, or bringing out the voice range (1-4kHz) in lecture and meeting recordings.
Start from a preset (bass boost, treble boost, clear voice, cut rumble) and fine-tune with the sliders.
Bands and range
Ten octave-spaced bands from 32Hz to 16kHz, each adjustable from -12dB (cut) to +12dB (boost). Low bands shape bass and rumble, mid bands the voice, and high bands clarity and sibilance.
Picking an output format
Lossless WAV is the default. Pick MP3 (192kbps) or M4A when size matters, or FLAC to stay lossless at a smaller size. MP3 and M4A are lossy in theory, but the difference is hard to hear in everyday listening.
Frequently asked questions
Is my file uploaded to a server?+
No. Both preview and render happen inside your browser, so the file never leaves your device.
Will the saved result differ from the preview?+
Preview and render go through the same filter chain, so what you heard is what gets saved.
Can it save straight to MP3?+
Yes — pick MP3 under Save as next to Render and it saves directly as MP3 (192kbps). M4A, FLAC, and WAV are available too.
Can boosting cause distortion?+
Boosting several bands hard can clip (distort) the audio. If that happens, lower other bands by the same amount or ease off the boost.
Related tools