Share files or entire folders with others, directly to their PC.
No cloud. No sign-up. Just a share code.
Choose what you want to share and Just Share gives you a share code. Send the code to the person you’re sharing with, approve them when they connect, and the files transfer directly from your computer to theirs. There’s no upload to wait for and no file size limit.
Windows 10 and 11One-time purchaseNo subscription
Choose how you want to share
Every share has a type, which controls what the other person can do. Select each option to see how it looks on their PC.
What they can do
You approve each new person before they can access a share, unless you turn approval off.
Stream your films, shows and music to friends.
Share a media folder as a library and the people you invite can browse and play it straight away, without downloading anything. Everything streams directly from your PC. Try the player: hover over the timeline or change the quality.
Not sure which to choose? The speed test checks your connection and the sharer’s computer, then recommends a quality.
Watch parties
Watch together from different places. When the host plays, pauses or skips, playback stays in sync for everyone.
Subtitles included
Subtitle files and built-in subtitle tracks are sent to viewers automatically. Each viewer chooses their own language and text size.
A proper media library
Films, TV shows with seasons and episodes, home videos and music, with Continue Watching and Up Next.
Posters and artwork
Your own artwork is used first. Looking up posters online is optional and off by default, and viewers never connect to those services.
Built for large folders and long transfers
See live transfer speeds, the time remaining for each person, and when everyone will be finished.
Speed limits and schedules
Limit upload and download speeds so sharing doesn’t slow down your connection, and schedule different limits for different times of day.
Only changed data is sent
When a large file changes, Just Share sends only the parts that changed, not the whole file.
Recipients share with each other
People downloading the same folder can also download from each other. This reduces the load on your connection, and lets them finish even if you go offline.
Technical details
For anyone who wants the specifics.
- Encryption
- Noise IK handshake · XChaCha20-Poly1305end-to-end, with Ed25519 device keys
- File verification
- SHA-256every file is checked on arrival
- Peer discovery
- Hyperswarm DHTsees IP addresses, never files or share codes
- Local network
- LAN discoveryworks without an internet connection
- File updates
- Only changed parts are re-sent
- Interrupted transfers
- Resume automatically
- Large folders
- Tested with 500,000 files
- Transfer history
- Per folder · CSV export
- Video conversion
- FFmpeg · 480p to 4K · Autoconverted on the sharer’s PC
- Analytics and tracking
- None
- Requirements
- Windows 10 or 11 · 64-bit
Open-source parts and their licences are listed in the app under Settings.
Who can see what
Because the computers connect directly, they need to know each other’s IP address. Here is exactly what each party can and can’t see.
People you share withAnyone you gave a share code to and approved
Can seeThe files in that share and their names, the name of your computer, and your IP address.
Can’t seeAnything you haven’t shared, or where the folder is stored on your PC.
Other people receiving the same shareBecause recipients can download from each other
Can seeEach other’s computer name and IP address, and which files each person already has.
Can’t seeAnything outside that share.
The peer-to-peer networkA public network that helps computers find each other
Can seeYour IP address, an ID for your computer, and a scrambled identifier for each share.
Can’t seeYour files, file names, computer name or share codes.
Devices on your local networkOnly when local network discovery is turned on
Can seeThat Just Share is running on your computer.
Can’t seeYour shares, file names or share codes.
TVmaze and WikipediaOnly if you turn on online posters for a library
Can seeThe titles of your films and shows, and your IP address.
Can’t seeYour files. Viewers never connect to these services.
Us, the makers of Just ShareThe app doesn’t send us any data
Can seeNothing. The app never contacts us, and your files never pass through us.
Can’t seeYour files, share codes, contacts or activity.
What is a share code?
A share code is a unique code that Just Share creates for each folder you share. It works like a password for that folder: you send it to the person you want to share with, and they enter it in Just Share on their PC to connect.
Who can access my files?
Only people who have the share code, and only after you approve them. Just Share asks you to approve each new person by default. You can remove someone at any time, or change the share code so the old one stops working.
Do both computers need to be on?
Yes. Files transfer directly from the sharer’s computer, so it needs to be on with Just Share running. If either computer goes offline, the transfer resumes from where it stopped when both are back online.
Does the other person need Just Share?
Yes. They open Just Share, select Get a folder and enter your share code, or simply click the invite link you send them.
Is it private?
Yes. Your files are encrypted and sent directly between the two computers. They are never stored on a server. A public peer-to-peer network helps the computers find each other. It can see your IP address, as any online service can, but never your files, their names or your share code.
Is there a file size limit?
No. Just Share doesn’t limit the size of the files or folders you share. Because files transfer directly, the only limit is the free disk space on the other person’s PC. It has been tested with folders containing 500,000 files.
How is this different from a cloud storage link?
With cloud storage, you upload your files to a company’s servers and the other person downloads them from there. With Just Share there is no upload step: files transfer directly from your PC to theirs, so there is only one transfer to wait for and no copy is kept online.
How do I get Just Share, and what does it cost?
Just Share is available from the Microsoft Store for Windows 10 and 11. It’s a one-time purchase with no subscription, and the current price is shown on the Store page. The app itself doesn’t require you to create an account.
Does it work without an internet connection?
Yes. Two computers on the same local network can share with each other without an internet connection. You can turn local network discovery off in Settings.
Ready to share your first folder?
Windows 10 and 11One-time purchaseNo subscription