Zynk communicates directly between devices.

With Zynk, you can send files between your devices, share files with other people, and send messages. It works on macOS, Windows, Linux, iPhone, and Android. Use the command-line app for servers and automated tasks.

DownloadFree. Ready in under a minute.
  • Phone to laptop, laptop to server, any device to any device.
  • Any size. There is no limit.
  • Private. Only the device you send to can open it.
  • They don't have Zynk? Send a link instead.
MacBook Pro
Auto-accept
Today
send me the ones from the ridge1:40
IMGsunset-ridge-trail.heic21.6 MB
STATUS
Completed
1:58
To MacBook Pro
IMGmorning-fog-valley.heic17.5 MB
STATUS
Completed
2:15
To MacBook Pro
MacBook Pro

Files that fly.

Your files go straight to the other device. 85 GB of RAW photos in 12 minutes.

On a local gigabit connection. Speeds vary by network.

Where other tools stop
Coastal Shoot RAWDIRECT→ MacBook Air

Limits each service publishes for free use.

Voice calls

Some things are better said.

Catch up, talk through an idea, or put a voice to the files you share. Now you can call your contacts in Zynk.

Voice calls
Maya Chen
Ready when you are
Ready when you are
Interactive demo · no real audio

Every device you own.

Mac, Windows, Linux, iOS, Android, Steam Deck, Raspberry Pi — one app that talks to all of them.

For everyone else, a link.

Upload files, get a link. Anyone downloads in their browser — no Zynk, no account, no sign-up.

Lives in your menu bar.

Drop a file on the menu bar icon, pick a contact, done. The full Zynk send flow lives in 32 pixels of your screen.

There’s also a

For those who don’t want to leave their terminal.

Send your first file.

Free. End-to-end encrypted.