head to head · open source
juicefs vs FlyEnv
juicefs has 14,440 GitHub stars, 1,290 forks, 203 open issues and last shipped today. FlyEnv has 3,233 stars, 371 forks, 37 open issues and last shipped 4 days ago. juicefs leads on adoption by 347% (14,440 vs 3,233 stars). juicefs is written in Go under Apache-2.0; FlyEnv is written in TypeScript under BSD-3-Clause. juicefs has attracted 9% as many forks as stars, FlyEnv 11%. juicefs was the more recently maintained of the two, and both are self-hostable with no licence fee.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| juicefs | FlyEnv | |
|---|---|---|
| GitHub stars | ★ 14K | ★ 3.2K |
| License | Apache-2.0 | BSD-3-Clause |
| Written in | Go | TypeScript |
| Last push | 2026-09-20 | 2026-09-16 |
| Forks | ⑂ 1.3K | ⑂ 371 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick juicefs if
- You weight community size — 14K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches Go
- You value the larger contributor base for long-term maintenance
pick FlyEnv if
- You want the FlyEnv feature set and don't need the biggest community
- You prefer the BSD-3-Clause license terms
- Your stack matches TypeScript
- You evaluated both and FlyEnv fits your workflow better
About juicefs
JuiceFS is a Go based, Apache 2.0 distributed POSIX file system that stores file data in object storage and metadata in a database engine such as Redis, MySQL, SQLite, or TiKV, and it is aimed at cloud native infrastructure, big data, machine learning, and AI workloads.
read the full juicefs overview →
About FlyEnv
FlyEnv is a native, cross platform desktop application that installs and manages a complete local development stack — language runtimes, databases, web servers, local sites with HTTPS, and AI coding tools — directly on Windows, macOS, and Linux, for developers who want a working local environment without container orchestration.
read the full FlyEnv overview →
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Frequently asked questions
Is juicefs or FlyEnv more popular?
juicefs has 14,440 GitHub stars and FlyEnv has 3,233. juicefs has the larger community by that measure.
Are juicefs and FlyEnv free?
Both are open source. juicefs is licensed under Apache-2.0 and FlyEnv under BSD-3-Clause. Neither carries a licence fee.
What is the difference between juicefs and FlyEnv?
juicefs is written in Go and FlyEnv in TypeScript. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, juicefs or FlyEnv?
Choose juicefs if you want the larger community (14,440 stars) or its Apache-2.0 licence terms. Choose FlyEnv if its feature set, stack or BSD-3-Clause licence fits better. Both are self-hostable.