A preset is a saved bundle of slider and option settings for one of the audio tools. Opening the tool through a preset link applies those settings instantly, so you hear a finished result right away — and you can still adjust every control afterwards before downloading.

Do presets upload my audio?

No. A preset only changes settings on the page; your audio is decoded, processed and encoded entirely in your own browser. Nothing is ever uploaded to a server.

Stereo Widener › Presets

Free Online Wide

Boosts the side signal by 50% for a bigger, more immersive stereo image on headphones.

Presets are one-click starting points: they set every slider and option on the Stereo Widener page to a tested combination, so you can hear the result instantly and then fine-tune it to taste. Everything runs locally in your browser — the preset never uploads your audio anywhere.

Like what you hear? You can tweak any control after applying the preset and download the final result as WAV or MP3. If the preset is not quite right for your track, try the neighbouring presets or dial the settings in manually — small moves make a big difference.

Use this preset →

How to use this preset

Open the tool — click “Use this preset” above to open Stereo Widener with these settings pre-applied.
Upload your audio — drag & drop an MP3, WAV, FLAC or OGG file (max 100 MB).
Preview & download — hit Preview to hear it, adjust any slider, then Process & Download your file.

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