PairDrop vs PsiTransfer
A side-by-side comparison of two self-hosted file sync & storage options — licensing, setup difficulty, resource needs, and what each one replaces.
PairDrop
Local and internet file sharing inspired by Snapdrop
VS
PsiTransfer
Simple open-source file sharing solution
| Feature | PairDrop | PsiTransfer |
|---|---|---|
| Deploy effort | ≈5-minute setup | Under-an-hour setup |
| Health score | 67 · Good | 76 · Good |
| Category | File Sync & Storage | File Sync & Storage |
| License | GPL-3.0 | MIT |
| Language | JavaScript | JavaScript |
| Setup difficulty | Easy | Easy |
| Min. RAM | 64 MB | 128 MB |
| Deployment | docker, bare-metal | docker, binary |
| GitHub stars | ★ 11,459 | ★ 1,951 |
| First released | 2022 | 2017 |
| Replaces | AirDrop, WeTransfer | WeTransfer |
What are PairDrop and PsiTransfer?
PairDrop
PairDrop is an enhanced fork of Snapdrop that adds device pairing across networks and the internet. It enables easy, encrypted peer-to-peer file transfer between paired devices.
- Cross-network device pairing
- Paste and share text
- WebRTC encrypted transfer
PsiTransfer
PsiTransfer is a self-hosted file sharing application with a drag-and-drop web interface. It supports resumable uploads, file expiration, and password protection.
- Resumable uploads
- Password-protected buckets
- Drag-and-drop interface
PairDrop vs PsiTransfer: key differences
Both projects are written in JavaScript. Licensing differs — GPL-3.0 for PairDrop versus MIT for PsiTransfer. PairDrop is the lighter option, starting around 64 MB of RAM against 128 MB for PsiTransfer. PsiTransfer is the more established project (first released 2017), while PairDrop arrived in 2022. PairDrop has the considerably larger community, at 11,459 GitHub stars versus 1,951.
Why pick each one
Choose PairDrop if…
- Released under the GPL-3.0 license
- Easy to set up — beginner-friendly
- First-class Docker support for quick deployment
- Mature project with 11.5k GitHub stars
Choose PsiTransfer if…
- Released under the MIT license
- Easy to set up — beginner-friendly
- First-class Docker support for quick deployment
- Active community (2k GitHub stars)
Frequently asked questions
Is PairDrop or PsiTransfer better?
Neither is universally better. PairDrop has the larger community; both share a easy setup difficulty, so the decision comes down to features and licensing.
Are PairDrop and PsiTransfer free and open-source?
Yes. PairDrop is licensed under GPL-3.0 and PsiTransfer under MIT. Both can be self-hosted at no software cost.
Can I run PairDrop and PsiTransfer with Docker?
PairDrop: yes. PsiTransfer: yes.
Which is lighter on resources, PairDrop or PsiTransfer?
PairDrop has the smaller minimum footprint at 64 MB of RAM, compared to about 128 MB for PsiTransfer. Real-world usage depends on library size, user count, and enabled features.