head to head · open source
Inngest vs Juggle
Inngest has 5,853 GitHub stars, 358 forks, 234 open issues and last shipped yesterday. Juggle has 1,148 stars, 200 forks, 7 open issues and last shipped 6 days ago. Inngest leads on adoption by 410% (5,853 vs 1,148 stars). Inngest is written in Go under a custom or non-standard licence; Juggle is written in Java under GPL-3.0. Inngest has attracted 6% as many forks as stars, Juggle 17%. Inngest was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (workflow-engine), so they are genuine substitutes rather than adjacent tools.
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
| Inngest | Juggle | |
|---|---|---|
| GitHub stars | ★ 5.9K | ★ 1.1K |
| License | Custom / other | GPL-3.0 |
| Written in | Go | Java |
| Last push | 2026-09-19 | 2026-09-14 |
| Forks | ⑂ 358 | ⑂ 200 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Inngest if
- You weight community size — 5.9K stars and counting
- You want the Custom / other license terms
- Your stack matches Go
- You value the larger contributor base for long-term maintenance
pick Juggle if
- You want the Juggle feature set and don't need the biggest community
- You prefer the GPL-3.0 license terms
- Your stack matches Java
- You evaluated both and Juggle fits your workflow better
About Inngest
Inngest is an open source workflow orchestration platform that lets developers write durable, event driven step functions in their existing language SDKs and run them on serverless, long running servers, or the edge.
read the full Inngest overview →
About Juggle
Juggle is a low code, zero code and AI assisted microservice API orchestration and system integration platform for Java teams that need to compose existing HTTP, Dubbo and WebService APIs into new endpoints without writing a new service.
read the full Juggle overview →
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Frequently asked questions
Is Inngest or Juggle more popular?
Inngest has 5,853 GitHub stars and Juggle has 1,148. Inngest has the larger community by that measure.
Are Inngest and Juggle free?
Both are open source. Inngest has no licence declared in this registry, and Juggle is licensed under GPL-3.0. Both are free to self-host.
What is the difference between Inngest and Juggle?
Inngest is written in Go and Juggle in Java. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, Inngest or Juggle?
Choose Inngest if you want the larger community (5,853 stars) or its Custom / other licence terms. Choose Juggle if its feature set, stack or GPL-3.0 licence fits better. Both are self-hostable.