Audio Fade Tool

Apply smooth volume transitions (Fade In / Fade Out) to your tracks instantly.

Audio Fade In & Out Maker

Create professional audio transitions by gradually increasing or decreasing the volume of your sound files.

What is it?

The Audio Fade Tool is a secure, browser-based utility that lets you apply "Fade In" and "Fade Out" effects to any audio file. A fade-in slowly raises the volume from zero at the beginning of a track, while a fade-out slowly lowers the volume to zero at the end. You can upload any popular format like .mp3, .wav, .ogg, or .m4a, and the tool will process it entirely on your device without uploading anything to a server.

How to use it?

Upload your audio file, then use the input boxes to specify the duration (in seconds) for your fades. You can preview the volume curves live using the playback button. Once you are satisfied with the smooth transitions, click the export button to download a high-quality .wav file.

Who uses this tool?

This tool is heavily used by podcasters to smoothly introduce background music, video editors creating seamless audio overlaps, and musicians who want their songs to end with a gentle fade rather than an abrupt stop.

Select Audio File

Supported formats: WAV, MP3, M4A, OGG, FLAC

Recommendation: For the best experience, use headphones. If you are on a mobile device without headphones, make sure your device is not on Silent/Mute mode.
Loading audio... Please wait
Time: 00:00 / 00:00
Pro Tip: Need to cut out unwanted parts before adding a fade? Use our Audio Trimmer.
Open Audio Trimmer

Fade Adjustments

sec
sec

Export Faded Audio

Pro Tip: Need your file in .MP3 format? Export as WAV here, then use our fast converter.
WAV to MP3 Converter

What is the Smart AudioLab Studio?

Welcome to the ultimate browser-based audio engineering hub. Free Audio Lab transforms your standard web browser into a powerful, zero-latency Digital Audio Workstation (DAW). Designed for producers, podcasters, video editors, and content creators, our platform eliminates the need for expensive software subscriptions, complex installations, and intrusive account sign-ups.

Whether you are performing surgical 3-Band EQ sweeps, analyzing true peak LUFS for streaming compliance, calculating harmonic Camelot keys for a DJ mix, or seamlessly converting lossless formats, every tool you need is right at your fingertips.

Simply drag and drop your audio files into the designated workspace. Because we leverage modern WebAudio API technology, all processing—from waveform analysis to pitch shifting, phase inverting, and rendering—happens directly within your browser. This means zero wait times for server uploads, no file size limits, and an unparalleled level of data security.

Local Processing

Everything is computed locally on your device's own CPU and RAM. Enjoy lightning-fast rendering and real-time playback without the lag of traditional cloud-based converters.

100% Privacy

Your files never leave your device. We do not upload, store, monitor, or collect your audio data on any external servers. What you create stays entirely yours.

Pro Quality

Export your finished tracks with industry-standard precision. Maintain lossless audio integrity, hit exact true peak levels, and ensure your mix is ready for global distribution.

Blog & Guides

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Discover step-by-step guides, audio engineering tips, and tutorials to help you get the most out of Free Audio Lab.