ScanSend

Turn your phone into a barcode scanner for your computer.
Point the camera at a barcode or QR code, tap Send, and it's typed into whatever is open on your computer.
No account. No cloud. No scan limits. Your scans never leave your Wi-Fi.

⬇ Download the latest version

How it works

1. Open ScanSend on your computer. It gets a fun name like Clumsy Thumbdrive.
2. Open ScanSend on your phone. Computers on the same Wi-Fi show up by name. Tap yours.
3. Click Accept on the computer. That's the whole setup, and it's remembered.
4. Scan. The code freezes in the box so you can check it, then Send types it into the active window (and presses Enter or Tab if you like), just like a USB barcode scanner.

Why ScanSend

• Private by design. Phone and computer talk directly over your local network. There's no server, no sign-up, no analytics, and it works without internet.
• Free, with no limits. No scan caps, no per-computer licenses, no subscriptions.
• Connect by tapping a name. No QR codes to scan, no IP addresses to type.
• See it before it's sent. The camera freezes on the code in the box; nothing goes to the computer until you tap Send.
• Works where you work. Android and iPhone phones; Windows, Linux and Mac computers.
• Small and to the point. Scan, check, send. Recent scans with Copy, on both sides.
• Make it yours. Themes like Forest Green, Wayland Blue, Grape Purple and Ember Orange, on the phone and the computer.

Download

Get the latest from the Releases page:

Device	File	Notes
Android phone	ScanSend-…-android.apk	Open it on the phone to install. Updates install over 0.4.0 and newer; uninstall a 0.3.x version once first.
Windows computer	ScanSend-…-windows-setup.exe	Installs ScanSend and allows it through Windows Firewall, so it never asks. (…-windows-x64.exe runs without installing.)
Linux computer	ScanSend-…-linux-x64	chmod +x it, then run it.
iPhone	—	Not on the App Store yet; build it on a Mac (below).
Mac computer	—	Build it from source for now (below).

The phone and computer need to be on the same Wi-Fi network. ScanSend uses UDP 53318 (finding computers) and TCP 53319 (scans). The Windows installer opens these for ScanSend (local network only); on Linux, the window offers to open them for you.

Settings on the computer

The ⚙ button opens Settings:

• When a scan arrives: type it into the active window, then press Enter, Tab or nothing; copy it to the clipboard; save it to a CSV file; any mix of these.
• Save it to a CSV file: every scan is added to Documents/ScanSend/scans.csv (Date, Time, Phone, Format, Code), which opens in Excel. Barcodes with leading zeros stay intact. You can keep the file open while scanning: if Excel has it locked, new scans wait and are saved when you close it.
• Start ScanSend when I log in.
• Themes: the same seven as the phone app.

Every connected phone is listed on the main window, with Unpair.

Running without a window: scansend --terminal (new phones are accepted by typing y). Other options: --suffix enter|tab|none, --no-type, --no-clipboard, --name "Front Desk", --list, --unpair-all.

Build from source

proto/      the shared protocol (Rust)
receiver/   the computer app (Rust, egui)
mobile/     the phone app (Tauri 2: Rust core + one HTML page)

Computer: cargo run --release -p scansend-receiver

Android: install the Tauri 2 prerequisites, then

cd mobile && npm install
npx tauri android init
npx tauri android build --apk --debug --target aarch64

iPhone (on a Mac with Xcode and a free Apple ID):

cd mobile && npm install
APPLE_DEVELOPMENT_TEAM=<your team id> npx tauri ios build --debug

The Xcode project is in the repo (mobile/src-tauri/gen/apple), so there's no ios init step. Then install it from Xcode (open mobile/src-tauri/gen/apple/*.xcodeproj and press ▶). Apps installed with a free Apple ID need reinstalling every 7 days.

How the phone finds the computer

The computer answers "who's there?" messages on UDP 53318 and serves a small HTTP API on TCP 53319. The phone also checks each address on its Wi-Fi directly, which is what works on iPhone: the whole subnet up to a /20 around the phone, plus the neighborhood of every computer it's paired with, so on big networks adding one computer by address brings in the ones near it. Tapping a computer sends a connect request that waits until someone clicks Accept; after that, every scan carries a token only that phone has. Details are in proto/src/lib.rs.

License

MIT. Barcode reading on iPhone uses ZXing via barcode-detector (MIT).