Multiplatform Support
Scalus compiles to JVM, JavaScript/Typescript, and Native from the same Scala 3 codebase. Write once, deploy anywhere — from server-side backends to browser wallets to CLI tools.
Platform Support Matrix
| Module | JVM | JS/TS | Native | Description |
|---|---|---|---|---|
| scalus-core | ✓ | ✓ | ✓ | Plutus VM, UPLC, SIR compiler, standard library |
| scalus-cardano-ledger | ✓ | ✓ | — | Transaction builder, ledger rules, Emulator |
| scalus-testkit | ✓ | ✓ | — | Testing utilities |
When to Use Which Platform
JVM — Full DApp Development
The JVM platform provides the complete Scalus stack:
- Smart contract development with the compiler plugin (Scala 3)
- Transaction building with TxBuilder
- Local testing with Emulator and Yaci DevKit
- Integration with Bloxbean Cardano Client Library
- Production backends with mature JVM ecosystem
Best for: Backend services, full DApp development, integration testing, production deployments.
JavaScript/Typescript — Offchain & Browser
JavaScript/Typescript enables Scalus in Node.js and browser environments:
- Script evaluation — Run Plutus V1/V2/V3 scripts
- Transaction building — Construct and sign transactions
- Wallet integration — Works with Lucid Evolution
- Cost estimation — Calculate execution units offchain
- Browser DApps — Full offchain logic in the browser
See the scalus npm package for JavaScript/TypeScript API, installation, and usage examples.
Best for: Browser wallets, Node.js tooling, Lucid-based DApps, offchain computation.
Native — CLI & Embedded
Scala Native compiles to native binaries:
- Fast startup — No JVM warmup
- Small footprint — Standalone executables
- System integration — FFI to C libraries
Best for: CLI tools, embedded systems, static libraries.
Get in Touch
Building a JavaScript/TypeScript or Native integration? We’re actively looking for feedback and early adopters. Open an issue or reach out — we’d love to help with your integration.
Feature Availability
| Feature | JVM | JS/TS | Native |
|---|---|---|---|
| Plutus script execution | ✓ | ✓ | ✓ |
| SIR compilation | ✓ | ✓ | ✓ |
| Transaction building | ✓ | ✓ | — |
| Emulator | ✓ | ✓ | — |
| Ledger rules validation | ✓ | ✓ | — |
| Yaci DevKit integration | ✓ | — | — |
| Compiler plugin | ✓ | — | — |
| Ed25519 signatures | ✓ | ✓ | ✓ |
| ECDSA secp256k1 | ✓ | ✓ | ✓ |
| Schnorr signatures | ✓ | ✓ | ✓ |
| BLS12-381 | ✓ | ✓ | ✓ |
See Also
- Getting Started — Set up JVM development environment
- Emulator — In-memory testing (JVM/JS)
- Transaction Builder — Build transactions (JVM/JS)
- Local Devnet — Integration testing (JVM only)