Send large audio files without the quality compromise
Audio files earned in the studio shouldn't arrive sounding like they passed through a phone line. WeTransfer delivers your mixes, stems, and masters directly from the browser to your recipients, exactly as they left your session, with no re-encoding and nothing to install on either end.
No file is too big
Advertising and marketing work runs on tight deadlines and pristine audio, and getting final mixes, voiceover recordings, or broadcast-ready masters to clients and media buyers shouldn't slow either down. WeTransfer sends your WAV, MP3, AIFF, and other audio formats as-is, preserving every bit of the original file so what your recipient hears matches exactly what you approved. Recipients can preview compatible audio files right in the browser before downloading, which means a client can sign off on a spot without pulling down the full session. Every transfer gets a unique link you can drop into a Slack message, email, or campaign brief, and you can lock it behind a password or restrict access to specific email addresses when the work is confidential. For heavy deliveries like multi-track stems or full campaign audio packages, upgrading to Ultimate removes the per-transfer size ceiling entirely.
What makes WeTransfer different
Our features are designed to minimize how much of your data we — or anyone else — can access, so you can keep what's yours, yours.
30M+ Transfers sent every month
4.8 App Store / Play Store average rating
12M+ Monthly active users
43K+ Enterprises using WeTransfer daily
Everything you need
Give people simple tools, and they'll do extraordinary things. Ultra-fast file transfers, built-in customization, easier team collaboration. That's the magic of WeTransfer.
Move your ideas forward
Share content with a unique link, give anyone a free pass to send you 200 GB files, and stay in control of transfers — even after you hit send.
Collaboration tools for teams of all sizes
With tools designed to enhance collaboration, get everyone in your team talking and moving as one, without disrupting their workflow.
Share with confidence and security
From password protection to file encryption, WeTransfer has all the built-in security features you need to safeguard your work.
FAQs
All your questions answered.
WeTransfer accepts any file type, so WAV, MP3, AIFF, FLAC, AAC, and multitrack session formats all transfer without issue. For advertising and marketing teams, that covers everything from compressed reference files to broadcast-ready masters and raw voiceover recordings. No conversion or re-encoding happens at any point, so the file your client or broadcast partner receives is identical to the one you uploaded.
No, WeTransfer applies no compression or re-encoding to your files. Your audio is transferred in its original format and quality, bit-for-bit, which matters when you're delivering final mixes or broadcast masters where any quality loss would be unacceptable. The files are zipped for download convenience using lossless compression, so the audio data itself is never altered.
Yes, recipients can play back compatible audio files, including MP3 and WAV files up to 300 MB, directly in the browser before deciding what to download. For advertising professionals, this means a client or creative director can review a voiceover or music track on the spot, without pulling down an entire session archive first. They can also leave comments on individual files in the preview, which keeps feedback tied directly to the right asset.
You can add a password to any transfer before or after sending, so only recipients who have the password can open it. Alternatively, you can use restricted access to lock the transfer to a specific list of email addresses, which means anyone outside that list is blocked even if they have the link. Both options are available on all plans and take effect immediately, with no extra software needed on the recipient's side.
Free accounts support transfers up to 3 GB, which covers most single-track or compressed audio deliveries. If you're sending full stems, a complete campaign audio package, or an uncompressed multitrack session that exceeds that, upgrading to Ultimate removes the per-transfer size cap entirely. You also get the option to set a custom expiry, or keep the transfer available indefinitely, so long-running campaigns don't need a re-upload every few days.