Audio Equalizer
Shape any audio file with a 10-band graphic EQ.
Tune the Tone of Any Recording
Ten sliders cover the whole audible range, from the 31 Hz rumble of a kick drum to the 16 kHz air above cymbals. Lift the bass on thin laptop recordings, cut the boomy 250 Hz range that makes voices muddy, add presence around 3–4 kHz so speech cuts through, or tame harsh highs. Presets give good starting points: bass boost, treble, vocal presence, podcast voice, warm, bright, lo-fi and the classic loudness “smile”.
Press Play and move the sliders while the audio runs — the change is heard immediately — and use Bypass to compare with the original. The download is rendered faster than real time through the same filters, and if your boosts would push the file into clipping, it is lowered just enough to stay clean.
Key features
- Ten bands from 31 Hz to 16 kHz, ±12 dB each, with shelving filters at the ends.
- Nine presets, including podcast voice and vocal presence.
- Live listening while you drag, with a one-click bypass.
- Clipping protection that lowers the level only when needed.
- Fast offline render to WAV for the download.
This tool does its work inside your browser using native Web APIs. The files and text you give it are processed on your device and are not uploaded to our servers.
How to use: Audio Equalizer
- Open a file
Drop the song, voice-over or recording onto the box. - Start from a preset
Pick the preset closest to what you want, or begin flat. - Adjust while listening
Press Play with EQ and move the sliders; toggle Bypass to compare. - Save
Press Download WAV. Clipping protection keeps the result distortion-free.
Technical specifications
| Processing location | Entirely in your browser — no server round trip |
|---|---|
| Data uploaded | None. Files and text never leave your device |
| Price | Free — no account, no trial, no usage cap |
| Category | Audio |
| Works offline | Yes, once the page has loaded |
| Browser support | Chrome 90+, Edge 90+, Firefox 90+, Safari 15+ |
| Interface languages | English, 中文, हिन्दी, Español, العربية |
Frequently asked questions
Which bands make a voice clearer?
Cut below 100 Hz to remove rumble, dip 200–400 Hz a little to reduce muddiness, and lift 2–5 kHz for presence. The “Podcast voice” preset does roughly that.
Why is the download slightly quieter than the preview?
Boosting raises the peaks. When the result would clip, the whole file is lowered by just enough to keep every sample below full scale — untick “Prevent clipping” if you would rather manage that yourself.
Can I boost only the bass?
Yes — use the Bass boost preset or raise the 31–125 Hz sliders. The dedicated Bass Booster tool is also available for a single-control version.
Is the audio uploaded?
No. Playback and rendering both use your browser’s Web Audio engine.