head to head · open source
Kestra vs flint
Kestra has 30,122 GitHub stars, 3,495 forks, 713 open issues and last shipped yesterday. flint has 1,709 stars, 106 forks, 16 open issues and last shipped 2 months ago. Kestra leads on adoption by 1,663% (30,122 vs 1,709 stars). Kestra is written in Java under Apache-2.0; flint is written in TypeScript under Apache-2.0. Kestra has attracted 12% as many forks as stars, flint 6%. Kestra was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (devops), 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
| Kestra | flint | |
|---|---|---|
| GitHub stars | ★ 30K | ★ 1.7K |
| License | Apache-2.0 | Apache-2.0 |
| Written in | Java | TypeScript |
| Last push | 2026-11-02 | 2026-09-05 |
| Forks | ⑂ 3.5K | ⑂ 106 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Kestra if
- You weight community size — 30K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches Java
- You value the larger contributor base for long-term maintenance
pick flint if
- You want the flint feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches TypeScript
- You evaluated both and flint fits your workflow better
About Kestra
Open source orchestration platform for data, AI, and infrastructure workflows Click on the image to learn how to get started with Kestra in 3 minutes. 🌟 What is Kestra? Kestra is an open source, event driven orchestration platform for data, AI, and infrastructure workflows. It unifies scheduled and event driven automation behind a declarative, language agnostic interface. By bringing Infrastructure as Code best practices to your data, process, and microservice pipelines, you can build reliable workflows directly from the UI in just a few lines of YAML, let the built in AI Copilot write them for you, or generate…
read the full Kestra overview →
About flint
Sponsored by heretic bot mitigation and anti fraud Note: this repository is no longer actively maintained and has been succeeded by 🌀 Flint — KVM Management, Reimagined A single <11MB binary with a modern Web UI, CLI, and API for KVM. No XML. No bloat. Just VMs. Flint is a modern, self contained KVM management tool built for developers, sysadmins, and home labs who want zero bloat and maximum efficiency. It was built in a few hours out of a sudden urge for something better. 📋 Prerequisites System Requirements: Linux host (Debian, Ubuntu, Fedora, RHEL, Arch, etc.) libvirt = 6.10.0 (check with libvirtd version )…
read the full flint overview →
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Frequently asked questions
Is Kestra or flint more popular?
Kestra has 30,122 GitHub stars and flint has 1,709. Kestra has the larger community by that measure.
Are Kestra and flint free?
Both are open source. Kestra is licensed under Apache-2.0 and flint under Apache-2.0. Neither carries a licence fee.
What is the difference between Kestra and flint?
Kestra is written in Java and flint 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, Kestra or flint?
Choose Kestra if you want the larger community (30,122 stars) or its Apache-2.0 licence terms. Choose flint if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.