Host any language on Square Cloud
11 production-ready runtimes. Isolated containers, smart auto-restart, and ZIP deploy, with no server to manage.
Supported runtimes
Pick your language and ship to production in minutes.
Quick comparison
Version, identifier, and focus of each runtime.
| Runtime | Latest | Recommended | Identifier | Focus |
|---|---|---|---|---|
| Node.js | 26 | 24 | nodejs | Bots, APIs, full-stack |
| TypeScript | 26 | 24 | typescript | Typed APIs, SaaS |
| Python | 3.14 | 3.13 | python | Bots, AI, scrapers, APIs |
| Java | 25 | 25 | java | Spring, Quarkus, Lavalink |
| Rust | 1.95 | 1.95 | rust | Performance-critical workloads |
| Ruby | 4 | 4 | ruby | Rails, Sinatra |
| PHP | 8.5 | 8.5 | php | Laravel, dynamic sites |
| Go | 1.26 | 1.26 | go | Microservices, concurrency |
| .NET | 10 | 10 | dotnet | ASP.NET Core, games |
| Elixir | 1.19 | 1.19 | elixir | Phoenix, OTP, real-time |
| Static | — | — | static | SPAs, landings, docs |
A plan for every stage of your project
Start small and scale when you need to, with no loyalty contracts.
Tier 3ISO 27001SOC 2 Type IIAlways-On DDoS Protection
Explore our infrastructureFrequently asked questions about runtimes
How to pick, version, and configure your runtime on Square Cloud.