Sending audio
Send the master, not an MP3 of it
Uncompressed audio is large, and a service that helpfully converts it has ruined the thing you were sending. Upload the WAV and the WAV is what arrives.
Send a file
Add files first. We verify your email before upload.
Drag & Drop your files or Browse
Formats and workflow
What a session actually weighs
WAV and AIFF stay as they are
No transcoding, no normalising, no loudness adjustment. The bounce you uploaded is the bounce that downloads.
Stem folders keep their names
Send the stem folder and every track keeps its filename and its place, which is the difference between a usable delivery and twenty files called mix.
Approval without an account
A mix goes out for notes and comes back approved or not. Whoever is approving does not have to sign up to say so.
Sample rate is where the size comes from
At 24-bit and 96kHz a stereo file is roughly twice the size of the same length at 48kHz. A mastering delivery is often several times an ordinary mix.
Reference files belong with the mix
A rough reference, a previous master and the new bounce make sense together. One folder keeps them comparable instead of scattered across messages.
Why the files are big
Uncompressed audio is heavy on purpose
A stereo WAV at 24-bit and 48kHz runs about 16MB a minute. A five minute mix is 80MB before you have sent a single stem, and a stem folder is twenty of those.
Quick answers
Before you send
The essentials, without another wall of feature cards.
Will my WAV be converted to MP3?
No. FileFast does not transcode anything.
Can I send a whole session folder?
Yes. Folder transfers keep the structure, which matters for project folders that expect their own layout.
How big can a stem delivery be?
Free covers 5GB per transfer, which is a substantial stem folder. Plus goes to 300GB.
Do you change loudness or normalise?
No. Nothing in the path touches the audio.
Can I send a multitrack export?
Yes. A stem or multitrack folder transfers as a folder, with the track names intact.
Can an artist approve without an account?
Yes. They open the link, listen, comment and approve in the browser.
Try it with the next thing you have to send
Choose the files, share one link, and see what happens after it lands.
The product behind it
How this works in FileFast
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