croc vs PairDrop
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
| Feature | croc | PairDrop |
|---|---|---|
| Deploy effort | Read-the-docs project | ≈5-minute setup |
| Health score | 99 · Excellent | 67 · Good |
| Category | File Sync & Storage | File Sync & Storage |
| License | MIT | GPL-3.0 |
| Language | Go | JavaScript |
| Setup difficulty | Easy | Easy |
| Min. RAM | 32 MB | 64 MB |
| Deployment | binary | docker, bare-metal |
| GitHub stars | ★ 40,431 | ★ 11,459 |
| First released | 2018 | 2022 |
| Replaces | WeTransfer, AirDrop | AirDrop, WeTransfer |
What are croc and PairDrop?
croc
croc is a tool that allows two computers to transfer files and folders simply and securely. It uses a relay with end-to-end encryption and a code-phrase system for pairing.
- End-to-end encrypted transfers
- Code-phrase pairing
- Self-hostable relay server
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
croc vs PairDrop: key differences
Croc is written in Go, while PairDrop is built with JavaScript. Licensing differs — MIT for croc versus GPL-3.0 for PairDrop. Croc is the lighter option, starting around 32 MB of RAM against 64 MB for PairDrop. Croc is the more established project (first released 2018), while PairDrop arrived in 2022. Croc has the considerably larger community, at 40,431 GitHub stars versus 11,459. PairDrop lists first-class Docker deployment; croc does not.
Why pick each one
Choose croc if…
- Simple code-phrase pairing
- End-to-end encrypted
- Resumable transfers
Watch out for
- CLI only
- Public relay by default
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
Frequently asked questions
Is croc or PairDrop better?
Neither is universally better. croc has the larger community; both share a easy setup difficulty, so the decision comes down to features and licensing.
Are croc and PairDrop free and open-source?
Yes. croc is licensed under MIT and PairDrop under GPL-3.0. Both can be self-hosted at no software cost.
Can I run croc and PairDrop with Docker?
croc: check the project docs for container support. PairDrop: yes.
Which is lighter on resources, croc or PairDrop?
croc has the smaller minimum footprint at 32 MB of RAM, compared to about 64 MB for PairDrop. Real-world usage depends on library size, user count, and enabled features.