Free Online Audio Equalizer
A 7-band equalizer with low and high shelves, five bell bands and a live frequency curve.
Source
Loops while you adjust. Match loudness sets the effect to the same average level as the original while previewing, so you judge the tone and not the volume. It does not change the export.
Equalizer
Drag a knob up or down, or focus it and use the arrow keys. Double-click or press Delete to reset one knob.
Meters
The safety limiter only protects the preview. The export is turned down as a whole if needed, so peaks stay under -1 dBTP.
Export
How to use the equalizer
How to use it
Drop in a file and press Play. Each band has a gain knob and a frequency knob. The five middle bands also have a width (Q) knob: higher Q affects a narrower range.
The curve above the knobs shows the combined effect of all seven bands.
Sensible starting settings
- Muddy mix: cut 2 to 3 dB around 250 to 400 Hz with Q near 1.
- Harsh vocal: cut 2 dB around 3 kHz, then compare with bypass.
- More air: raise the high shelf 1.5 to 3 dB at 10 to 12 kHz.
- Small cuts usually work better than large boosts. Keep most moves within 3 dB.
Compare fairly
Boosts make audio louder, and louder often sounds better. Turn on Match loudness so the preview plays the EQ at the same average level as the original, then switch bypass on and off.
Hear changes as you make them and export a 24-bit WAV.
How it works.
- 1
Drop in a file
MP3, WAV, FLAC or M4A. It is decoded on your device.
- 2
Adjust while it plays
Turn the controls and hear the change live. Use bypass and loudness match to compare fairly.
- 3
Save a 24-bit WAV
Render the full file and download it with your plan access. Your original is unchanged.
Questions.
What type of EQ is this?
Seven Web Audio biquad filters in series: a low shelf, five peaking (bell) bands and a high shelf. Each band ranges from -12 to +12 dB.
Is it a linear-phase EQ?
No. Biquad filters are minimum phase, like most analog-style EQs. That is normal for mixing and mastering moves of a few decibels.
Does it make my song louder?
Only if you boost. It does not apply loudness mastering. If boosts would push peaks over -1 dBTP, the export is turned down to stay clean.
Which settings should I start with?
Start flat, listen, then make small cuts where something sounds wrong. Use Match loudness and bypass to check each change actually helps.
Is my audio uploaded?
No. The file is decoded and processed in your browser with the Web Audio API. Nothing is sent to a server.
Can the export clip?
No. After rendering, the tool estimates the true peak between samples. If it would go above -1 dBTP, the whole file is turned down by the amount needed, and that amount is shown.