Postie: File Transfer & Webcam

Your phone, PC, Mac and tablet, working as one ecosystem.

Stop emailing files to yourself. Postie moves files, photos, videos and text between every device you own: Android, Windows, Mac, Linux, or any browser. Pick a device, tap send, it's there. No cable, no cloud upload, no waiting. Every device has an app in its native store.

ONE ECOSYSTEM, ANY BRAND
The best part of owning one brand of everything is that your devices just work together. A photo is already on your laptop. A link is waiting on your tablet. Your phone is the webcam. Postie gives you that across every device you own, whatever the brand, with nothing to lock you in.

MADE FOR PEOPLE WHO WORK ACROSS SCREENS
• Developers — send a fresh APK to your phone to test, pull a bug screenshot onto your laptop, or move a log, a token or a snippet without retyping it. There's a command-line tool too: postie app.apk phone.
• Students — whiteboard photos and scanned notes on your laptop before the lecture ends; PDFs onto your tablet for reading.
• Creators and designers — full-resolution photos and 4K video from your phone into your editor, uncompressed.
• At work — get a document onto the meeting-room PC from a browser, with no login and no USB stick.
• Everyone — a link, an address or a Wi-Fi password on the other screen in one tap.

THE FASTEST ROUTE, EVERY TIME
Postie picks the shortest path between your two devices:
• Same Wi-Fi — straight across your network at full speed. Free, and it works even when the internet is down.
• No Wi-Fi at all — Link nearby connects two Android devices directly over Wi-Fi Direct.
• Device to device — an encrypted peer-to-peer connection when both are online.
• Somewhere else, or switched off — the relay holds it, sealed, until that device collects it.

YOUR PHONE CAMERA, ON YOUR OTHER SCREEN
Lend your phone's camera to your tablet, PC or Mac. See the live view, press the shutter, and the full-size photo or clip lands where you need it — in Postie, or straight into the app that asked for a photo.
On a Windows PC or Mac, pick Postie Camera in Zoom, Google Meet or Teams and your phone becomes a sharp, wireless webcam.

EVERY DEVICE IN YOUR ECOSYSTEM
• Android phones and tablets
• Windows PC and Mac — real desktop apps that stay quietly connected
• Linux — a native app
• AI assistants — tell yours "send this file to my phone" and it does
• Any browser, for a computer that isn't yours

SEND ANYTHING, UNTOUCHED
Photos and videos at full resolution, with no messenger compression. PDFs, documents, spreadsheets, ZIPs, APKs, music. A link, an address, a code, or one line of text you need on the other screen. Each device gets its own chat thread, so anything you sent is easy to find again.

SEALED BEFORE IT LEAVES
Each of your devices has its own key. A file is encrypted on the device that sends it and only the device you sent it to can open it. Our relay only ever holds ciphertext it has no key for. That isn't a setting — it's how Postie is built.

BUILT FOR HOW YOU ACTUALLY SHARE
• Share from any app with the Android share sheet
• Long-press the Postie icon for shortcuts straight to a device
• Add a device in seconds with a QR code or a short code
• Save arrivals to Downloads automatically, or keep them in the app

LIGHT ON BATTERY AND DATA
Postie stays out of the way until you send something, and transfers on your own network never touch mobile data.

NO ADS. NO TRACKING. NO SIGN-UP.
No email, no password. Add your other devices with a code, or sign in with Google to find them all at once. No ads, no analytics following you around, and no way for us to read what you send.

Free across your own devices on your network and peer to peer. Transfers through the relay come with a monthly allowance.

Recent changes:
Postie 3.0 - the first public release.

• Send files, photos and text to your other devices in one tap
• Same Wi-Fi? Files go straight across your network - fast, no upload
• Away from home, transfers are end-to-end encrypted
• Lend your phone's camera to your computer as a webcam
• Share from any app, or send what's on your clipboard
• Works with Windows, Mac, Linux and the web
• No sign-up needed - or link devices with Google or a code