ChestnutBearBearDrop: scan a QR code to send files between your phone and PC
Move files between your phone and your PC by scanning a QR code. Your phone just uses its browser — no app to install, no account, and nothing ever leaves your local network. Free, under 100 KB.
How it works
Phone → PC
Scan the QR code shown on your computer, pick files in your phone's browser, and they land in a folder on your PC. Photos and videos keep full quality — nothing is compressed.
PC → Phone
On the computer, click “Add files” (or drag them in). They appear on your phone, ready to tap and download. No size limit beyond your disk.
Why use it
- No app on your phone. Your phone just opens its normal browser after scanning. Works on iPhone and Android alike.
- Nothing uploaded to a server. Files travel directly over your local Wi-Fi, not through WeChat, email or any cloud. Fast, and private.
- No login, no watermark, no size limit. Unlike many casting and transfer apps, there is no account, no ads and no compression.
- Tiny and portable. A single file under 100 KB that uses the .NET Framework already in Windows. Nothing to install.
- English and Chinese. Follows your system language, switchable any time.
How to use it
- Connect your PC and phone to the same Wi-Fi network.
- Open BearDrop on the PC. It opens a page in your browser showing a QR code.
- The first time, Windows may ask about the firewall — tick “Private networks” and click Allow.
- On your phone, scan the QR code with the camera and open the link.
- To send from the phone: tap “choose files”. To send from the PC: click “Add files”, then tap to download on the phone.
Is it safe?
BearDrop works only on your local network and shows a clear window the whole time — it never runs hidden and never executes commands. Each session uses a new random code in the QR link, so devices that did not scan it cannot connect. Use it on a Wi-Fi you trust, such as at home.
Compatibility
- Windows 10 and Windows 11 (64-bit).
- Any phone with a camera and a browser — iOS or Android.
- Both devices must be on the same Wi-Fi network.
FAQ
Windows says “Windows protected your PC” — is it safe?
The app is new and not yet code-signed, so SmartScreen warns about an unknown publisher. Click “More info”, then “Run anyway”. You can also check the file's SHA-256 against the value on this page.
The QR code won't connect.
Make sure the phone and PC are on the same Wi-Fi (some routers isolate 2.4G and 5G, or block devices on a guest network from seeing each other). You can also type the address shown under the QR into your phone's browser.
Where do received files go?
Into a “BearDrop” folder in your Downloads. Click “Received folder” in the app to open it.
Is it really free?
Yes — no trial, no time limit, no account.