Nx

Nx is a build system and monorepo platform that optimizes code builds, scales CI, and caches task results for developers.

Nx is a build system and monorepo platform designed for coding agents and developers. It provides first-class support for JavaScript, TypeScript, .NET, and Java, alongside plugins for Python, Rust, Go, and PHP. The platform caches task results and distributes execution across multiple machines to reduce CI compute times. Teams use Nx to manage large-scale projects, unify web and mobile codebases, and automatically fix failed pull requests. Nx Cloud adds team-wide caching, analytics, and automated CI management.

Nx at a glance

Best for: Software engineer
Runs on: CLI, API, self-hosted, open source
Pricing: Free Hobby tier; Team plan starting at $29/month; Custom Enterprise pricing available.
Released: August 2017
Category: AI coding tool
Website: nx.dev

Key features

Task caching for every result
Polyglot support for multiple languages
Automated CI distribution and concurrency
Context sharing for coding agents
Automated pull request fixes for failed tests
CI performance and resource analytics
Cross-repository coordination and governance

Use it for

Accelerating CI pipeline execution times
Managing large monorepos across teams
Automatically fixing failed PRs and flaky tests
Caching build and test results team-wide

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