croc vs Kleeja
A side-by-side comparison of two self-hosted file sync & storage options — licensing, setup difficulty, resource needs, and what each one replaces.
| Feature | croc | Kleeja |
|---|---|---|
| Deploy effort | Read-the-docs project | Read-the-docs project |
| Health score | 99 · Excellent | 75 · Good |
| Category | File Sync & Storage | File Sync & Storage |
| License | MIT | GPL-3.0 |
| Language | Go | PHP |
| Setup difficulty | Easy | Easy |
| Min. RAM | 32 MB | 128 MB |
| Deployment | binary | bare-metal |
| GitHub stars | ★ 40,431 | ★ 193 |
| First released | 2018 | 2006 |
| Replaces | WeTransfer, AirDrop | WeTransfer |
What are croc and Kleeja?
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
Kleeja
Kleeja is a long-running PHP application for uploading and sharing files and images. It supports multiple languages, themes, and a plugin system for extension.
- Plugin and theme system
- Multilingual interface
- Long-standing project
croc vs Kleeja: key differences
Croc is written in Go, while Kleeja is built with PHP. Licensing differs — MIT for croc versus GPL-3.0 for Kleeja. Croc is the lighter option, starting around 32 MB of RAM against 128 MB for Kleeja. Kleeja is the more established project (first released 2006), while croc arrived in 2018. Croc has the considerably larger community, at 40,431 GitHub stars versus 193.
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 Kleeja if…
- Released under the GPL-3.0 license
- Easy to set up — beginner-friendly
- Written in PHP
- Tiny footprint — runs in 128 MB RAM
Frequently asked questions
Is croc or Kleeja 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 Kleeja free and open-source?
Yes. croc is licensed under MIT and Kleeja under GPL-3.0. Both can be self-hosted at no software cost.
Can I run croc and Kleeja with Docker?
croc: check the project docs for container support. Kleeja: check the project docs for container support.
Which is lighter on resources, croc or Kleeja?
croc has the smaller minimum footprint at 32 MB of RAM, compared to about 128 MB for Kleeja. Real-world usage depends on library size, user count, and enabled features.