JstSync Download
Android to Windows and Linux, over your Wi‑Fi

Your phone’s photos and files, on your own computer.

JstSync copies the folders you choose on your Android phone to your Windows or Linux computer over your home Wi‑Fi. Your files never go to the cloud. No account, no ads, no tracking.
Anyone can use it.

Get it on Google Play Download forUbuntu

Phone app for Android 10 or later. Desktop app for 64-bit Windows and Linux.

How it works

Set up once. Your files keep arriving.

  1. 1

    Install the desktop app

    Download it for Windows or Linux and open it. It shows a QR code.

  2. 2

    Scan the code

    In the phone app, tap “Scan QR code” and point the camera at the screen. Or paste the code.

  3. 3

    Choose folders

    Gallery, WhatsApp, Viber, Telegram, or any folder on your phone or memory card.

  4. 4

    Tap Save

    Files start arriving on your computer. Files already there are not sent again.

Private by design

Straight from your phone to your computer. Nowhere else.

The developer never receives your files. There is no account to make.

Encrypted, paired devices only

An encrypted connection that only your phone and your computer can use. Each checks the other’s certificate.

No cloud, no tracking

No ads, no usage analytics or tracking. Crash reports only if you approve each one. The camera is used only while the scanner is open.

Keeps up by itself

Checks for new files every 15 minutes or so, on unmetered Wi‑Fi, while charging or above 25 % battery.

Set up in a minute

Install both apps, scan one code, pick your folders. No account, no router settings, nothing technical. Anyone can do it.

Monthly archives on the desktop

When a month ends, the desktop packs its files into one verified ZIP beside the download folder.

Eleven languages

English, Russian, Chinese (Simplified), Serbian (Latin), Hindi, French, Italian, German, Dutch, Spanish and Portuguese.

Remove synced files

Free up your phone. Your computer keeps everything.

Choose how many of the most recent files each folder keeps on the phone. Older files are removed from the phone once they are safely on your computer.

  • One setting for every folder. Keep None, 10, 20, 50, 100, 200, 300, 500 or All of the newest files per folder.
  • Only what is safely copied. A file goes only when it is already on your computer and unchanged on the phone since. Files not synced yet always stay.
  • Nothing leaves the computer. Removing frees room on the phone only. Every copy stays in your download folder.
  • You see the effect first. Before you save, the app shows how many files would go and how much space that frees.
  • Off until you choose. It starts at All, so nothing is removed. Find it in Settings, “Remove synced files”.
Download

Get both apps. They are free.

Version 0.1.0 · released 10 November 2026 · Release notes

Windows

64-bit (x86-64)
Not available yet.

Unzip and open jstsync.exe. The app is not signed yet, so Windows may ask before it starts it the first time.

Ubuntu

64-bit (x86-64)
Download for Ubuntujstsync-0.1.0-linux-x86_64.tar.gz · 15.3 MB

Extract the archive and run ./jstsync.

Chinese or Hindi? The window brings its own fonts, but the tray menu and the folder dialog use the system’s. Install them once in Terminal:

sudo apt update
sudo apt install fonts-noto-cjk fonts-noto-core

Then quit JstSync from its tray menu and open it again.

Android phone

Android 10 or later
Get it on Google Play Search “JstSync” in the Play Store, or scan the code on the computer and follow the link.

Check your download: import the release key (fingerprint 7A18 526C 71C8 1CEA ED4B EA55 A03C F799 9881 2926) with gpg --import pgp-key.asc, run gpg --verify SHA256SUMS.asc SHA256SUMS on SHA256SUMS and its signature SHA256SUMS.asc, then sha256sum -c SHA256SUMS on Linux or Get-FileHash in PowerShell. Each archive holds a README and the third-party notices.

Made with Slint
Good to know

Before you start

Same Wi‑Fi network
Phone and computer must be on the same network. Guest networks can hide the computer; the QR code still works there.
One way only
Copying goes from the phone to the computer. Deleting a file on one side changes nothing on the other.
Photos stay as they are
Files are copied exactly, with all the information in them, such as a photo’s location.
Free up space, if you want
“Remove synced files” keeps only the newest files on the phone. Off by default; only files already on your computer go.
What is not copied
Hidden files, files over 1 TiB, and folders Android does not let apps choose, such as Android/data.
Several phones
One computer can pair with several phones, each with its own download folder.