head to head · open source
Encore vs mantis
Encore has 12,369 GitHub stars, 622 forks, 127 open issues and last shipped 2 days ago. mantis has 1,665 stars, 160 forks, 1 open issues and last shipped 2 days ago. Encore leads on adoption by 643% (12,369 vs 1,665 stars). Encore is written in Go under MPL-2.0; mantis is written in Python under Apache-2.0. Encore has attracted 5% as many forks as stars, mantis 10%. mantis 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
| Encore | mantis | |
|---|---|---|
| GitHub stars | ★ 12K | ★ 1.7K |
| License | MPL-2.0 | Apache-2.0 |
| Written in | Go | Python |
| Last push | 2026-09-18 | 2026-09-18 |
| Forks | ⑂ 622 | ⑂ 160 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Encore if
- You weight community size — 12K stars and counting
- You want the MPL-2.0 license terms
- Your stack matches Go
- You value the larger contributor base for long-term maintenance
pick mantis if
- You want the mantis feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Python
- You evaluated both and mantis fits your workflow better
About Encore
Encore is an open source infrastructure platform for backend development, written in Go under MPL 2.0. It lives in the Go and TypeScript cloud native ecosystem and lets developers declare databases, Pub/Sub, object storage, caches, cron jobs, and secrets in application code. The project combines an infrastructure SDK with an optional managed platform that deploys to a user's AWS or GCP account.
read the full Encore overview →
About mantis
Mantis is a modular, stack agnostic toolkit of security review skills for AI coding agents, and it includes an ADK reference harness for building secure software. It lives in the developer tools, AI coding agent, and application security ecosystem, with topics such as code review, DevSecOps, multi agent systems, and hardware security. The project helps agents autonomously find, reproduce, and patch vulnerabilities while giving humans a structured way to review results.
read the full mantis overview →
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Frequently asked questions
Is Encore or mantis more popular?
Encore has 12,369 GitHub stars and mantis has 1,665. Encore has the larger community by that measure.
Are Encore and mantis free?
Both are open source. Encore is licensed under MPL-2.0 and mantis under Apache-2.0. Neither carries a licence fee.
What is the difference between Encore and mantis?
Encore is written in Go and mantis in Python. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, Encore or mantis?
Choose Encore if you want the larger community (12,369 stars) or its MPL-2.0 licence terms. Choose mantis if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.