Free Audio Fade In & Fade Out Online
Add a smooth fade in and/or fade out to an MP3, WAV, FLAC, M4A, AAC, OGG, or AIFF file — free, no sign-up, no watermark.
Independent fades
Fade in and fade out lengths set separately.
Up to 30s each
Plenty of range for a gentle or dramatic fade.
No sign-up
No account, no email, no watermark.
What is an audio fade?
An audio fade is a gradual change in volume over a short span, rather than an instant jump from silence to full level or back. Instead of a track starting or stopping abruptly, the volume ramps up or down over a duration you choose. It's a small edit, but it shows up constantly across music, podcasts, voice recordings, and samples — anywhere a clip starts or ends somewhere other than a natural pause.
Fade in vs. fade out
| Fade In | Fade Out | |
|---|---|---|
| Direction | Silence → full volume | Full volume → silence |
| Applied at | Start of the file | End of the file |
| Typical use | Easing into a track that begins mid-waveform | Smoothing a cut point at the end of a clip |
They're independent settings — plenty of clips only need one. A recording that already starts cleanly from silence might only need a fade out where it was trimmed; a clip pulled from the middle of a longer file might want both.
How to fade audio online
- Upload an MP3, WAV, FLAC, M4A, AAC, OGG, or AIFF file.
- Turn on fade in and/or fade out and set how many seconds each should last.
- Download the result.
How long should an audio fade be?
It depends on what the fade is covering for. A loop point generally wants a very short fade — anything long enough to be noticeable also changes how the loop sounds each time it repeats. A podcast outro or the end of a voice recording can usually take a longer, more deliberate fade without feeling abrupt. The general trade-off: too short and a loud, sudden waveform might still produce an audible click; too long and the fade itself becomes an obvious part of the audio rather than an invisible fix. Either fade can run up to 30 seconds here.
Why audio clicks at hard cuts
When a clip is cut at a point where the waveform isn't sitting at zero, the sudden jump in amplitude produces an audible click or pop right at the cut. A fade ramps the volume to (or from) zero over a short span instead of jumping instantly, which removes that discontinuity. This is why trimmed clips, exported loops, and podcast intros/outros almost always use one at the edges.
Want the fuller explanation of why this happens and how to judge fade length for different situations? Read Why Trimmed Audio Clips Need a Fade In and Out.
Common uses
Smoothing the start and end of a trimmed clip, giving a podcast intro or outro a professional finish, avoiding a click at a loop point in a sample, softening the end of a ringtone or notification sound, easing into or out of a voice-over recording, and cleaning up the audio track under a video transition.
Making a ringtone specifically? The Ringtone Maker trims a clip to length in one step — fade it afterward here if you want a softer start or end.
Fade vs. volume adjustment
A volume adjustment changes the loudness of the entire file by a fixed amount — the whole track gets louder or quieter, uniformly. A fade changes loudness progressively, over a duration you choose, specifically at the start and/or end of the file. If what you actually need is the whole track louder or quieter throughout, the Volume Booster is the right tool instead.
Fade vs. trim
Trimming cuts a file down to a specific start and end point, removing everything outside that range. Fading doesn't remove any audio — it smooths the volume at whatever start and end points already exist. The two pair naturally: trim a clip out of a longer recording with the Audio Trimmer first, then run the trimmed result through this tool if the new cut points need a fade to sound clean.
Supported formats
Upload any of the formats above, up to 50MB per file. The output keeps the same format you uploaded.
Does fading affect audio quality?
No — a fade only adjusts the volume envelope at the start and/or end of the file; it doesn't alter the rest of the content, and the output keeps the same format as what you uploaded rather than converting to something else.
More free tools
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