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Private by design. Files are processed on your device and never uploaded.

Boost the low end

Give one audio file a fuller bass response, keep the sound in balance, and download the result when it is ready.

Drop one audio file here

or browse your device · common audio formats · up to 50 MB

Choose a starting point

Custom

Presets set a practical starting point. You can fine-tune the amount and focus below.

Choose a file to get started.

Listen before and after

Original

Before

Choose a file to listen to the original.

Bass boosted

After

Your boosted preview and download will appear here.

Click or drag either waveform to jump to a moment. Arrow keys fine-tune the position; playing one preview automatically pauses the other.

The result shows the processed signal separately from a fresh measurement of the saved file. Compressed formats can vary slightly after saving.

How to boost bass

  1. Choose one audio file from your device. Common audio formats are supported up to 50 MB.
  2. Start with a preset, then adjust Bass amount and Bass focus. Choose your download format and channel option.
  3. Select Boost bass. Click or drag either waveform to compare a moment, check the measurements, then download your finished file.

Tips for a natural bass boost

Start gently. A +3 to +6 dB boost around 80 to 140 Hz often adds weight without making voices or drums muddy. Move Bass focus higher when you want more punch rather than deeper rumble.

Keep peak protection enabled for most music. If the result feels too loud, lower Bass amount or choose a gentler preset instead of stacking multiple strong boosts. WAV or FLAC are useful when you want a lossless result for later editing.

When should you use Bass Booster?

Use it when a song, voice clip, podcast intro, or video soundtrack sounds thin on your headphones, car speakers, or small Bluetooth speaker. It is useful for giving a finished file a fuller low end without rebuilding the whole mix.

Bass boosting cannot repair distortion, remove noise, or create bass that was never captured. Check the original first if it already sounds boomy or clipped.

Private local processing

Your audio is processed directly on your device. Neither the original nor the finished file is uploaded to a server. Longer recordings can take more time and device memory, especially on a phone, so process one file at a time and keep this page open until it finishes.

FAQ

No. Your selected audio and the finished file stay on your device. Processing happens locally in this browser.
You can use MP3, WAV, M4A, FLAC, OGG, AAC, Opus, WebM audio, AIFF, WMA and other common audio files. You can download as MP3, WAV, M4A, FLAC, OGG, AAC, Opus, WebM or AIFF. A file can still fail if its audio is damaged or unsupported.
Bass amount controls the configured low-end gain. Bass focus moves the reference point of the adjustment: lower values reach deeper, while higher values carry farther into bass. Start with a gentle preset if you are unsure.
Peak protection reduces the result evenly when a boost would exceed your selected ceiling. It helps avoid clipping, but it cannot guarantee every compressed download will measure at exactly the same ceiling.
Some compressed formats can shift the level slightly while saving. The Saved-file measurement in the result shows the level measured from the finished download rather than assuming it matches the processing setting.
Choose one file up to 50 MB and about 30 minutes. Some long or detailed recordings need more device memory, so the tool stops a job instead of creating a partial download when it cannot finish safely.
Yes. After processing, click, tap, or drag either waveform to seek and play from that point. You can also focus it and use the arrow keys, Home, or End.
A browser may not play every audio format even when the file can be processed. If a preview is unavailable, you can still download the finished file and listen with your usual audio player.