com-lihaoyi/Ammonite

Health v2 · maintenance only

Adoption not part of the score

2630 stars · 366 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

Ammonite is a Scala REPL and script runner that lets developers use Scala for lightweight scripting and interactive exploration without setting up a build project. It offers a modernized REPL with syntax highlighting, multi-line editing, and dynamic loading of Maven dependencies, plus a command-line script runner as an alternative to slow sbt startup. The project is now deprecated, with its features ported to the Mill build tool and the upstream Scala 3 REPL.

Use cases

• run scala scripts from the command line without setting up a project
• scala repl with syntax highlighting and multiline editing
• load maven dependencies dynamically in a scala repl
• scripting in scala instead of python or bash
• interactive scala shell for exploring libraries
• avoid slow sbt startup for quick scala programs

When to choose

• you maintain an existing codebase that already depends on Ammonite scripts or its REPL
• you are on an older Scala 2.x setup where the upstream REPL lacks Ammonite's features
• you are following tutorials or the Hands-on Scala book that use Ammonite

When to avoid

• starting a new Scala scripting project - use the Mill build tool's scripting support instead
• you want a modern Scala REPL - use the upstream Scala 3.8.2+ REPL which absorbed most features
• you need long-term support or bug fixes - the project is deprecated and unmaintained

Facets

cli-tool · maturity abandoned

interpreter cli terminal-ui developer-tools programming-languages developer-tools jvm cli cross-platform scala repl scripting script-runner deprecated jline maven-dependencies command-line

Member repositories

For agents

markdown · JSON · MCP: product_card(name="com-lihaoyi/Ammonite")