Fade in fade out audio online — free
Quick answer Smooth the start and end of a clip so it doesn't click in a video or merge.
Smooth starts and ends so clips don't click when you drop them into a video or merge. 15MB max (Pro: 20MB).
Free to try · No signup required · Commercial use allowed · How we test · About VoxCraft
Add fade in and fade out to audio online for free with VoxCraft. Soften hard starts and stops before you publish a video or podcast — one of the easiest polish steps, no editor install required.
How it works
- Upload your clip.
- Set fade-in and fade-out in milliseconds.
- Apply and download.
Who uses this
Video voiceover
Soft start so the first word isn't abrupt.
Music beds
Fade out under the last line of narration.
Before merge
Fade edges so joins feel cleaner.
Tips for better results
- 300–800 ms is enough for most voice clips.
- Very long fades on short clips will swallow content — keep fades shorter than half the duration.
Frequently asked questions
How do I add a fade in and fade out to audio?
Upload the clip, set a fade-in and a fade-out length in milliseconds and tap Apply. Use 0 for a side you don't want faded.
How long should a fade be?
300–800 ms suits most voice clips; music beds often use two to five seconds (2000–5000 ms) for a gradual fade-out.
Is a fade the same as a crossfade?
No. A fade lowers one clip's volume to silence (or raises it from silence). A crossfade blends the end of one clip into the start of the next. To join clips, fade them here and use Merge.
Can I fade only one side?
Yes — set the other side to 0 ms.
Is there a limit on fade length?
Fades are capped at half the clip's length so they can't swallow the whole clip.