Adjust bass, mid, and treble frequencies to get the perfect sound. Apply presets or create custom EQ curves for your audio.
Supports MP3, WAV, OGG, FLAC and more
4 simple steps to get started.
Select the audio file you want to equalize.
Move sliders to adjust frequency bands.
Listen to the equalized audio in real-time.
Download the equalized audio file.
Everything you need to edit audio — right in your browser.
Boost low-end frequencies to add depth and punch to your audio.
Merge multiple audio files into a single track seamlessly.
Convert between MP3, WAV, OGG, FLAC, and more formats.
Increase or decrease the volume of your audio files.
Speed up or slow down audio without changing the pitch.
Add smooth fade-in and fade-out effects to your tracks.
Record audio directly from your microphone in the browser.
Adjust bass, treble, and mid frequencies to fine-tune sound.
Reverse any audio file instantly for creative effects.
Create custom ringtones from any audio file you have.
Remove background noise and clean up your audio recordings.
Extract audio tracks from video files quickly and easily.
Shift the pitch of audio up or down without changing speed.
Reduce dynamic range for consistent, polished audio levels.
Remove vocals from songs to create karaoke or instrumental tracks.
Split audio files into equal or fixed-length segments.
Everything you need to know about equalizer.
Adjust bass, mid, and treble frequencies to get the perfect sound. Apply presets or create custom EQ curves for your audio. No downloads, no sign-ups, and no accounts. Editing and preview run locally in your browser using the Web Audio API; exporting sends your file over an encrypted connection to our processing server, which deletes it as soon as your download finishes.
Simply upload your audio file — MP3, WAV, OGG, FLAC, or M4A — and use our intuitive editor to make your changes. Upload audio, Adjust EQ, Preview sound, Export. Once you're satisfied, export the result in your preferred format instantly.
Whether you're a podcaster, musician, content creator, or just someone who needs a quick audio edit, Equalizer is built for you. It works on any device — desktop, tablet, or mobile — across all modern browsers including Chrome, Firefox, Safari, and Edge.
The equalizer splits the audible range into ten bands — 32, 64, 125, 250, 500 Hz, then 1, 2, 4, 8 and 16 kHz — and lets you cut or boost each by up to 24 dB. The bands roughly double in frequency as they go up, which matches how hearing works: the musical distance from 100 Hz to 200 Hz is the same octave as 1 kHz to 2 kHz, even though one spans 100 Hz and the other 1,000.
Knowing what lives where is most of the skill. 32 and 64 Hz are sub-bass, felt more than heard, and often just rumble that can be cut. 125 and 250 Hz carry warmth and body, and are where recordings turn muddy. 500 Hz to 1 kHz is where voices sit — cut too much here and everything sounds hollow. 2 to 4 kHz is presence and intelligibility, the range that makes speech cut through. 8 and 16 kHz are air and sparkle, and also where hiss and sibilance live.
The instinct is to boost what you want more of. Cutting what you want less of usually works better. Boosting adds level and eats headroom, which risks clipping; cutting frees headroom and achieves the same relative balance. If a recording sounds dull, try cutting 250 Hz rather than boosting 4 kHz — the result is often cleaner.
If the only thing you want is more low end, the Bass Booster is faster: three sliders fixed at 80, 250 and 500 Hz with no decisions about which band to reach for. Come here when the problem is not confined to the bass, when you need to cut something specific higher up, or when you want finer control than three bands allow. Preview is local in both tools; the filtering is applied on the server at export and the file is deleted immediately after.
Everything you need to know about Equalizer.