MotionShine01 / Shelf
Below a frequency
A low shelf lifts everything under the frequency you pick by the amount you pick.
Free tool
Bass booster, feel the low end.
Drop a song and turn up the bass while it plays: choose how many decibels and where the boost starts, or start from a preset. What you hear is what you save; the saved file is set so its loudest point sits just under the top, so the extra bass does not clip. It runs in this tab, so your file is never uploaded.
Presets
Press play and move the sliders: the boost is heard live. Phone and laptop speakers play little below about 100 Hz, so check deep settings on headphones.
Save
The sound is changed in your browser. It is never uploaded.
How it works
More low end, no clipping.
02 / Live
Hear it as you go
The same filter runs while the song plays, so you hear each change at once.
03 / Safe
No clipping
The saved file is turned down as a whole so its loudest moment sits at -1 dB.
Questions
Good to know.
Why does the song sound quieter with a big boost?
Bass takes up a lot of the room before a file clips, so the whole song is turned down to make space for it. Turn your volume up a little.
Can I boost the bass of a video?
Save the sound here, then put it back on the video with add music to video.
What is the difference from the equalizer?
This page does one thing, the low end. The audio equalizer has ten bands from 31 Hz to 16 kHz.
Is my file uploaded?
No. Everything happens in this tab.