Fade In/Out

How to Use

1. Click the area above to select a file, or drag and drop a file onto the page
2. Adjust parameters in the settings area
3. Click the process button and download the result when ready

Frequently Asked Questions

How It Works

The Fade In/Out tool uses FFmpeg WebAssembly with the fade video filter and afade audio filter to create smooth transition effects at the beginning and/or end of a video. The fade operates on the video's alpha channel and audio amplitude.

For video fading: The fade filter applies a linear (or exponential) interpolation of pixel opacity from 0% to 100% (fade-in) or 100% to 0% (fade-out) over the specified duration. The fade type (black/white/transparent) determines what the video fades to or from. Black is most common for cinematic transitions.

For audio fading: The afade filter applies a gain ramp from silence (-inf dB) to full volume (0 dB) during fade-in, or the reverse during fade-out. Both video and audio fades are synchronized using the same duration parameter. The fade starts at the specified timestamp, with the end fade calculated as (total_duration - fade_duration).

Tips & Best Practices

• 1-2 second fades are the most natural-looking for professional video. Longer fades can feel slow.
• Match video and audio fades: Always apply both fade-in and fade-out to both video and audio for a cohesive, polished effect.
• Black fade for dramatic effect: Use black fades for cinematic openings. White fades work well for flashback or dream sequences.
• Short video warning: For videos under 5 seconds, use very short fades (0.5s) to avoid the entire video being a fade.
• Combine with trim: Add 1-second fades to trimmed clips for a professional, finished look.
• Fade-in first, fade-out last: Standard editing practice — fade in at the start and fade out at the end for polished results.

Use Cases

Film editors adding professional fade-in transitions at the opening of scenes and fade-to-black at the end for cinematic presentation.

Corporate presenters creating smooth fade-in openings for presentation recordings shared with clients. YouTube creators adding fade-out effects at video endings for a polished, professional feel. Wedding videographers using soft white fades for romantic transition moments. Training video producers using fade transitions between chapter segments to signal topic changes. Podcast video producers fading audio in and out for clean starts and endings in video podcast episodes.

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