Will the audio clip if I boost too much?

Yes — boosting above the peak headroom causes hard clipping (a harsh distortion). Enable the Soft Clip option to apply a gentle tanh limiter that prevents harsh artifacts.

Free Volume Booster

Make quiet audio files louder. Boost manually with a slider or use one-click Normalize to maximize without clipping. Your file never leaves your browser.

No file handy?

Drop audio file here

or click to browse — processed in your browser, never uploaded

MP3WAVOGG FLACAACM4A

Your file is never uploaded. All processing happens in your browser — nothing is sent to a server. Privacy policy.

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Gain +0.0 dB

Original peak: — New peak: —

Boost exceeds headroom — audio will clip unless soft-clip is enabled.

Soft clip — smooth tanh limiter to prevent harsh distortion when boosting

Make Quiet Audio Louder — Free, Private, No Sign-up

SnipSound's Volume Booster increases the loudness of any audio file directly in your browser. Drop in an MP3, WAV, OGG, FLAC, AAC or M4A, choose Boost for a manual gain slider or Normalize to push the peak as loud as possible without clipping, then download the result. It's the fastest way to increase volume online or make any audio file sound louder — free, private, no sign-up.

How to make an audio file louder online (free)

Drop your file in. MP3, WAV, OGG, FLAC, AAC or M4A — nothing is uploaded, it stays on your device.
Increase the volume. Drag the Boost slider to add gain (in dB), or press Normalize to make the audio as loud as possible without clipping.
Preview it. Play it back to confirm it sounds louder with no distortion.
Download. Export the louder file in your chosen format — free, no sign-up, no watermark.

It works the same for every format — use it as an MP3 volume booster, a WAV volume booster, or to make an MP3 louder and increase the volume of any recording in seconds.

Common use cases

Quiet phone recordings. Voice memos, interviews, and lecture recordings often come out too quiet to hear in noisy environments. Boost them.
Old MP3s. Older recordings often weren't mastered to modern loudness. Bring them up to today's streaming levels.
Podcast leveling. Bring guest audio that's noticeably quieter than the host up to the same loudness.
Background music for video. Match the level of a music bed to dialogue or narration.

Why use SnipSound

100% in your browser. Other boosters upload your file to a server; we don't.
Soft-clip protection. When you push the gain past headroom, a smooth tanh limiter prevents the harsh digital clipping artifacts you'd otherwise get.
Visible peak meter. See your original peak and the new peak in dB before you commit.
Lossless WAV export. No re-encoding artifacts.

Frequently Asked Questions

How do I make an audio file louder online?▼

Drop your audio file onto the page, choose Boost (manual gain) or Normalize (auto-maximize), preview, and download the louder version as WAV.

How do I increase the volume of an audio file online for free?▼

Drop your file in, drag the Boost slider (or press Normalize), preview, and download the louder file. No account, no software to install, no upload — it all runs in your browser.

How do I make an MP3 or WAV sound louder?▼

It's the same for any format: drop in the MP3, WAV, FLAC, M4A, OGG or AAC, add gain with Boost or use Normalize to maximize loudness without clipping, then download. Works as an MP3 volume booster or a WAV volume booster.

Can I make audio louder without downloading software?▼

Yes — this free online volume booster runs entirely in your browser. Nothing to install, no sign-up, and your file never leaves your device.

What's the difference between Boost and Normalize?▼

Boost applies a fixed gain that you set with the slider, measured in dB. Normalize automatically scales the audio so its peak hits -1 dBFS — the loudest possible without going over digital full scale.

What does soft-clip do?▼

When you boost past the available headroom, samples that exceed 0 dBFS would normally be hard-clipped (chopped flat), which sounds harsh. Soft-clip applies a smooth tanh limiter so the overshoot is rolled off gently — more like analog tape saturation than digital distortion.

Is my file uploaded?▼

No. All processing happens in your browser via the Web Audio API. See our privacy policy.

What format is the output?▼

WAV (16-bit PCM). Lossless.