Example audioquiet-recording.wav
150% applies 1.5× the signal amplitude. It does not promise the same percentage increase in perceived loudness.
Free browser-based audio tool
Audio Volume Booster Online
Make a quiet audio file louder, preview the result and download a new copy. Adjust volume without changing pitch, speed or timing.
0–200% volume · No sign-up · Processed in your browser
Need to make the sound in a video louder? Use Video Volume Booster.
Simple control, clear result
Turn up quiet audio and hear the difference
Choose a percentage for the selected clip, then preview the full recording before export. The original file on your device stays unchanged.
Before · original100%
After · boosted150%
Original level
Keep the source level unchanged.
A useful starting point
Raise a quiet recording by 1.5×, then preview it.
Maximum setting
Apply up to twice the amplitude before peak protection.
Three steps
How to increase audio volume online
Your upload opens directly in Audio Editor with the clip selected and the Volume control highlighted.
- 01
Upload your audio
Choose one recording to open it in the editor. Add or split clips later if you need more control.
- 02
Raise Volume and preview
Start around 125–150%, press Play and check both the quiet sections and the loudest peaks.
- 03
Choose a format and export
Download MP3 for easy sharing, or choose WAV or FLAC to avoid another lossy encoding step.
More control when you need it
Boost the whole recording or only the quiet part
A single percentage works for consistently quiet audio. When only one sentence, take or musical phrase is low, split around it and adjust that section independently.
- 1
Move the playhead to the start of the quiet passage and choose Split.
- 2
Split again at the end, then select the new middle clip.
- 3
Raise only that clip's Volume and listen across both edit points.
0:000:150:300:45
Original
Selected · 150%
Original
Common jobs
Make the recording easier to hear where it matters
Use direct volume control for a clearly defined file or passage—not as a substitute for repairing damaged audio.
Bring up a softly recorded memo
Raise a phone recording, explanation or lecture when the speaker was too far from the microphone.
Start around 125–150%Fix one take that sits too low
Split a quiet sentence or retake and balance it against the surrounding spoken audio.
Boost one selected sectionMake a quiet track easier to preview
Increase an old demo or music file while keeping its pitch, speed and arrangement unchanged.
Listen to the loudest passageBalance clips before export
Give separate clips their own volume settings, then preview how they sit together on the timeline.
Adjust clip by clipClean gain has a limit
Make it louder without ignoring clipping
Boosting cannot create headroom that the source never had. It also raises any hiss, hum or room noise already in the recording.
Start here
A practical first test for quiet audio with some available headroom.
Use after listening
The maximum control setting. Peak protection may reduce the finished gain.
Need steadier levels? Compression can reduce the difference between quiet and loud passages before you choose the final volume.
Choose the right level tool
Volume Booster, Normalizer or Compressor?
They can all make audio easier to hear, but each one solves a different problem.
| Tool | Best for | How it works | Choose it when |
|---|---|---|---|
| Volume Booster | Direct level changes | Applies the percentage you choose | You know exactly which clip or passage is too quiet |
| Audio Normalizer | Consistent peak or loudness targets | Analyzes audio and adjusts it toward a measured target | You want repeatable output across recordings |
| Audio Compressor | Large quiet-to-loud differences | Reduces dynamic range before final level adjustment | Some parts are hard to hear while others are already loud |
Straightforward from upload to export
Work with your file in the browser
Use a familiar format, keep the original on your device and export a separate louder copy.
No install or sign-up
Open the tool in a modern browser and begin with one audio file. No desktop setup or account is required.
Private browser processing
The edit and export workflow runs on your device. Keep the page open until your finished file is downloaded.
Choose the useful format
MP3 is convenient for sharing. WAV and FLAC avoid another lossy encoding step, but cannot restore missing source detail.
- MP3
- WAV
- FLAC
- OGG
- Opus
- M4A
- M4B
- AAC
- AIFF
- AIF
- AIFC
- WMA
- AMR
- MP4
Audio Volume Booster FAQs
Volume percentages, MP3 export, clipping, partial adjustments and private browser processing.
How do I increase audio volume online?
Upload an audio file to open Audio Editor. Select the clip, raise Volume above 100%, press Play to preview it, then choose an output format and export the louder copy.
How can I make an MP3 louder?
Upload your MP3, adjust the selected clip's Volume and preview the loudest passages. Export as MP3 for convenient sharing, or choose WAV to avoid another lossy encoding step. Your original file is not overwritten.
What do 100%, 150% and 200% volume mean?
100% keeps the original signal level. 150% applies 1.5 times the amplitude, and 200% applies twice the amplitude, or about +6 dB before peak protection. Twice the amplitude does not mean twice the perceived loudness.
Will the audio volume booster cause clipping or distortion?
A clean result depends on the source. Start around 125–150% and listen to the loudest parts. If the recording is already near its peak level, there may be little clean headroom; final peak protection can reduce the requested gain to keep the mix below its ceiling.
Can I make only one part of a recording louder?
Yes. Place the playhead at the beginning and end of the quiet passage and use Split at both points. Select the new middle clip, then raise its Volume without changing the surrounding clips.
Does changing volume affect pitch or speed?
No. The Volume control changes level only. Pitch, playback speed and timing stay unchanged unless you use their separate controls in Audio Editor.
View all 8 questionsShow fewer questions
What is the difference between Volume Booster and Audio Normalizer?
Volume Booster applies a percentage you choose to the selected clip. Audio Normalizer analyzes audio and targets a peak or perceived loudness level. Use the booster for direct control and the normalizer for a measured target.
Is my audio private?
Audio editing and export run in your browser, and no account is required. Keep the page open while working and download the finished audio before leaving. A processing engine may download the first time you use the editor.