Audio fade tool

Add smooth fade-in and fade-out effects to your audio files. Free, runs in your browser.

Before
After
Easy fading options Trim region
Drop your audio files here or click to browse
Supports MP3, WAV, and OGG - max 50 MB
.mp3 .wav .ogg
100% free Private - no upload Works in browser MP3 and WAV
Fade in
Fade out
0:00 / 0:00

Fade effects ?

Set how the volume ramps at the start and end of your track.

s
s

Trim region ?

Select a portion of the track to export. Everything outside gets trimmed.

s
Duration ? s
Processing audio...
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What is audio fading?

Audio fading is the gradual increase or decrease of volume at the beginning or end of a track. A fade in starts from silence and smoothly raises the volume to full level. A fade out does the opposite - it takes the audio from full volume down to silence.

Fading is one of the most common audio effects used in music production, podcasting, and video editing. It creates smooth transitions, prevents harsh starts or abrupt endings, and gives your tracks a polished, professional feel.

Fade in vs fade out

A fade in works well for intros, building tension, or blending one track into another. A fade out is the go-to for smooth song endings, especially for SoundCloud premieres and streaming uploads where you want a clean finish. Most producers use a 2-5 second fade for songs and 1-2 seconds for voice recordings.

How to fade audio online

This tool lets you add fade in and fade out effects to any audio file directly in your browser. No software to install, no account to create. Here's how:

You can also trim your track to export just a portion, load multiple tracks at once, and choose from preset fade durations.

Supported audio formats

This audio fade tool works with the most common audio formats:

Why use a browser-based audio fade tool?

Traditional audio editors like Audacity or Adobe Audition are powerful, but they're overkill when all you need is a simple fade. Here's why a browser-based tool makes sense:

Common use cases for audio fading

Music production and mastering

Add smooth intros and outros to finished tracks before uploading to SoundCloud, Spotify, or other platforms.

EP and album previews for labels

Labels often stitch 2-minute previews of each track into a single SoundCloud upload before a release. Fades smooth the transitions between segments and give snippets a clean start and end. Premierely helps labels and artists reach more listeners through SoundCloud premieres and reposts.

Submit your tracks on Premierely

Podcast intros and outros

Fade in your podcast intro music and fade out at the end for a clean, professional sound.

Ringtones and sound clips

Use the clip/preview feature to trim a section of a song, then add fades for a smooth ringtone or notification sound.

Tips for choosing the right fade duration

This tool uses an equal-power fade curve, which sounds more natural than a straight linear fade. The volume drops off smoothly rather than diving suddenly.

Frequently asked questions

How do I fade in and fade out music online?

Upload your audio file to this tool, set the fade in and fade out duration using the sliders, preview the result, and download. The entire process happens in your browser with no upload to any server.

Can I fade an MP3 without losing quality?

This tool re-encodes MP3 files at 192kbps, which maintains high quality for most use cases. For zero quality loss, upload a WAV file instead - WAV output is lossless 16-bit PCM.

Is my audio file uploaded to a server?

No. All audio processing runs locally in your browser using the Web Audio API. Your files never leave your device. Nothing is uploaded, stored, or shared.

What is the maximum file size?

The recommended limit is 50MB. Larger files may work depending on your device's memory, but processing time increases with file size.

Can I trim my audio and add fades at the same time?

Yes. Enable the "Trim region" feature to select a section of your track, then apply fade in and fade out to just that section. The download will contain only the trimmed, faded clip.

Does this tool preserve my file's title?

Yes. When you upload an MP3, the tool reads the existing title tag and uses it as the track name. The title is embedded back when you download.