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Send stems, sessions and masters, losslessly
WAV stems, Logic sessions, and mastered tracks delivered without lossy compression. Your audio arrives exactly as you exported it.
Lossless audio delivery
No sneaky re-encoding. WAV and FLAC files arrive bit-for-bit identical. Your mix stays your mix.
Convert formats on the fly
Need to send MP3 previews alongside WAV masters? Convert between audio formats before you send, no extra tools needed.
One link, all your files
Bundle stems, masters, and session notes into a single transfer link. Collaborators download everything in one click.
Your mix arrives exactly as you bounced it
Audio is unforgiving about compression. A 24-bit WAV that gets quietly re-encoded to a lossy format somewhere in transit isn't your master anymore, it's a lesser version of it, and the producer or label on the other end can hear the difference. Send a folder of stems through a tool that "helpfully" optimises files and you've handed over something you didn't approve. For mix engineers, mastering work, and session collaboration, that's a non-starter.
FileFlippers delivers audio losslessly. WAV, FLAC, AIFF, your files arrive bit-for-bit identical to what left your DAW. No sneaky re-encoding, no normalising, no "optimisation". A full Logic or Pro Tools session with all its audio can be zipped and sent whole, as long as the zip stays under 2 GB so it clears our virus scan, and the same 2 GB ceiling applies to AIFF. Bundle stems, the master, and a notes file into a single link so collaborators grab everything in one click instead of digging through five separate messages.
Need to send MP3 previews next to the WAV masters? You can convert between audio formats right here before sending, so there's no jumping into a separate tool. Free accounts send files up to 5 GB, which covers most stem packs, and Pro and Squad go bigger for heavy multitrack deliveries. Lock the link with a password (Pro and Squad) and an expiry if it's an unreleased track you don't want sitting around.
Common questions
Yes. We transfer the exact file you upload, so WAV, FLAC and AIFF arrive bit-for-bit identical. No re-encoding, no compression, no normalising. Keep AIFF under 2 GB per file so it clears our virus scan; WAV and FLAC have no such ceiling. Your mix stays your mix.
Yes. Zip up your Logic, Pro Tools or Ableton session with all its audio and send the whole thing in one transfer. Keep the zip under 2 GB so it clears our virus scan. Raw WAV and FLAC have no such ceiling, and run to 5 GB free, more on Pro and Squad.
Yes. Convert between audio formats right inside FileFlippers before you send, so you can bundle a quick MP3 preview with the lossless masters without opening a separate converter.
Yes. Drop everything into a single transfer and your collaborator gets one link with all of it. They download the lot in one click.
Set a password (Pro and Squad) so only the people you sent it to can open it, and add an expiry so the link comes down after your chosen window. Every transfer is encrypted in transit by default.
Explore more
Send your next bounce without losing a single bit
Lossless delivery, format conversion built in, your first transfer free.
Sign up and send your stems