What this tool does
Bass booster opens the equalizer tool with this setting ready, so you only choose your file and tap once.
Make songs thump with more bass for speakers, make a dull voice recording clearer, or soften harsh treble. Pick a preset or move the three sliders, listen, and save.
How to use it
- Choose your audio file.
- Pick a preset or move the bass, middle and treble sliders.
- Tap Apply equalizer and listen.
- Download the new file.
Why 123ToolBox
Your files stay with youEverything happens inside your browser. Nothing is uploaded to us or anyone else.
Free, no watermarkEvery tool is free. Your result has no logo or watermark.
No sign-upOpen the page and use it. No account, no email.
Made for phonesWorks on cheap Android phones as well as laptops.
FastNo upload or download wait. Small files finish in seconds.
Exact resultsWhen a form says “under 20 KB”, you get under 20 KB.
Popular ways to use it
Questions people ask
How do I boost bass in a song?
Pick Bass boost, or move the Bass slider up, and tap Apply.
How do I make a voice recording clearer?
Pick Clear voice. It lifts the middle range where speech is.
Will the sound distort?
The tool lowers the level slightly if needed so it does not crackle.
Is my audio uploaded?
No. Everything happens inside your browser. Your file never leaves your device.