Shape both ends independently
Set fade-in and fade-out lengths down to a tenth of a second. The visual envelope shows exactly where each transition lands.
Free Audio Fader
Fade in. Fade out. Finish every track clean.
Upload music, shape a smooth entrance and exit, preview it instantly, then download the finished audio. Everything happens locally in your browser.
Drop your audio here or browse a file MP3 · WAV · M4A · OGG · up to 100 MB
Your audio Ready to edit
Fade In Fade Out
0:00 0:00
Ready — adjust the fades, preview, then download.
Processed locally — your audio is never uploaded Need more control? Open Studio
Simple by design
The cleanest way to fade audio online
No timeline setup, account or upload queue. Just the controls you need for a polished beginning and ending.
Your music stays on your device
Audio is decoded, previewed and rendered in your browser. Nothing is sent to an upload server.
Download a high-quality WAV
Export the complete track with smooth linear fades and no watermark, ready for your editor, DAW or publishing workflow.
How it works
From rough edges to a clean finish in three steps
Upload your audio
Drop in music, a podcast, a voiceover or any supported audio file. It opens locally in your browser.
Set the fade timing
Choose a quick preset or adjust each end by hand. Preview and seek through the waveform until the transition feels right.
Download the result
Render the full track with your fades and save a clean WAV without signing in or spending credits.
Go beyond a single fade
Turn a clean ending into a complete arrangement
This quick tool is ideal for one track. When the edit needs more layers, timing changes or creative control, move into AceStep Studio.
- Fade multiple tracks independently
- Trim, split, move and align clips on a visual timeline
- Separate stems and build new arrangements
- Mix and export a complete production
Main mix
Vocals
Ambient tail
Made for clean transitions
A small edit that makes a big difference
Fades remove abrupt starts and stops wherever audio needs to feel intentional.
Podcasts & voiceovers
Ease music beds under speech and give intros or outros a natural, professional finish.
Video soundtracks
Match music to scene boundaries, end cards and title sequences without a hard audio cut.
DJ sets & mixes
Prepare smoother entrances and exits before arranging tracks inside a longer mix.
Songs & demos
Clean up rough bounces, soften long reverb tails and make demos feel ready to share.
Questions
Audio fade in and fade out FAQ
What is an audio fade-in or fade-out?
A fade-in gradually raises the volume from silence at the start of audio. A fade-out gradually lowers it to silence at the end. Both make transitions feel smoother and prevent abrupt cuts.
Is this audio fade tool free?
Yes. You can upload, preview and export faded audio without an account, subscription or watermark.
Is my music uploaded anywhere?
No. Decoding, playback, fade processing and WAV encoding all happen locally in your browser, so the audio file stays on your device.
Which audio formats can I use?
The tool accepts formats your browser can decode, including MP3, WAV, M4A, AAC, OGG and WebM in most modern browsers. Finished audio is exported as a high-quality 16-bit WAV.
Will adding a fade reduce audio quality?
The fade is calculated directly from the decoded audio and exported as an uncompressed WAV. There is no extra lossy compression during export.
When should I use AceStep Studio instead?
Use Studio when you need fades on several tracks, clip trimming, timeline arrangement, stem separation, mixing controls or a complete multitrack export.
Build the full track
Your fade is only the beginning
Open AceStep Studio to shape fades across multiple tracks, edit clips, separate stems and arrange a complete production in one workspace.
Open AceStep Studio Multitrack timeline · clip editing · stems · full mix export