Aspect Build

Aspect makes Bazel fast and approachable. We build open-source Bazel rulesets used by thousands of teams, and offer Aspect Workflows, managed CI runners with remote caching and RBE, deployed in your cloud or hosted by Aspect as a single-tenant service.

📖 Docs: docs.aspect.build  |  💬 Slack: slack.aspect.build  |  🌐 Website: aspect.build

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Aspect CLI

Repository	Description	Release
aspect-cli	Programmable task runner built on top of Bazel — configure custom commands with the Aspect Extension Language (AXL).
aspect-gazelle	Pre-compiled Gazelle binaries with BUILD file generators for JS, Python, and AXL.

JavaScript and TypeScript

Repository	Description	Release
rules_js	High-performance Bazel rules for JS and Node.js using a pnpm-based layout.
rules_ts	Canonical Bazel rules for TypeScript, built on rules_js.
rules_swc	Bazel rules for the SWC Rust-based JS compiler.
rules_esbuild	Bazel rules for the esbuild bundler — hermetic, no npm install.
rules_webpack	Bazel rules for Webpack.
rules_rollup	Bazel rules for the Rollup JS bundler.
rules_terser	Bazel rules for the Terser JS minifier.
rules_jest	Bazel rules to run Jest tests.
rules_jasmine	Bazel rules to run Jasmine tests.
rules_cypress	Bazel rules to run Cypress e2e tests.

Python

Repository	Description	Release
rules_py	High-performance Python rules with native uv integration and strict hermeticity.

Utilities and Libraries

Repository	Description	Release
rules_lint	Linters and formatters as Bazel actions — 20+ tools, supports RBE.
toml.bzl	Bazel library for consuming TOML files in repository rules.

Examples and Templates

Repository	Description
bazel-examples	Polyglot reference monorepo across Go, Python, Java, JS, Rust, Ruby, and more. Live test bed for Aspect's CI integrations.
aspect-workflows-template	Scaffold template for bootstrapping an Aspect Workflows project.

Under bazel-contrib

Projects Aspect authors or maintains under the community bazel-contrib org:

Repository	Description	Release
bazel-lib	Common utility rules and functions for writing Bazel rules in Starlark. Originally authored by Aspect; donated to bazel-contrib.
rules_oci	Bazel rules for building OCI container images without Docker. Built by Aspect under bazel-contrib in collaboration with Google.
rules_nodejs	Bazel rules for fetching the Node.js binary and @bazel/runfiles. Long-term maintained by Aspect.
publish-to-bcr	Automation for publishing Bazel module releases to the Bazel Central Registry. Originally built by Aspect; donated to bazel-contrib.

Contracted Maintenance

Projects owned by third parties that Aspect maintains under contract:

Repository	Owner	Description	Release
rules_apko	Chainguard	Bazel rules for apko — builds OCI images from APK packages without a Dockerfile.