Adjust Volume
Make a video or audio file louder or quieter by a gain factor (1 = unchanged, 2 = double).
About Adjust Volume
Adjust Volume makes a video or audio file louder or quieter by a simple gain factor — 1 leaves it unchanged, 2 doubles it, 0.5 halves it. Reach for it when a clip is just too quiet to hear or too hot in the mix. The gain is applied in your browser, so the file stays on your device.
- Category
- media
- Input
- Accepts: audio/* or video/*.
- Output
- Outputs: */*.
- Cost
- Free, runs in your browser
- Memory
- high
- Install group
- ffmpeg
Common uses
- Boost a quiet phone recording so dialogue is actually audible
- Turn down an over-driven clip whose audio is too loud against the rest of an edit
- Bring up the level of a distant interviewee captured far from the mic
- Quickly lift the volume of a voice memo before sharing it
- Attenuate a music bed so it sits under narration
Frequently asked questions
How does the gain factor work?
You multiply the level: 1 keeps it the same, 2 makes it twice as loud, and a value below 1 (like 0.5) makes it quieter.
Can I use it on both video and audio files?
Yes — it accepts audio/* and video/* and returns the same media type you provided.
How is this different from Normalize Loudness?
This applies a flat gain you choose; Normalize Loudness measures perceived loudness and adjusts to hit a standard target like EBU R128 instead.
Will boosting cause distortion?
A large boost can push peaks past the ceiling and clip, so raise gain carefully — if you need a clean, standard level, use Normalize Loudness instead.
Is my file uploaded?
No. The gain is applied locally in your browser; nothing is sent to a server.
Keywords
- volume
- gain
- louder
- quieter
- audio
- video
- boost
- amplify
- attenuate