Moonlit
Moonlit: An open-source YAML release pipeline with sandboxed plugins and publishing workflows. Ranked #9 of 29 in Release Automation Tools by our editors (7.9/10); pricing: Free plan; best for teams wanting a free, extensible release pipeline.
At a glance
- Editor score7.9 / 10
- PricingFree plan
- Best forTeams wanting a free, extensible release pipeline
- Free planYes
- Paid fromFree
- Semantic versioningYes
- Facts checked5 Oct 2026
Where it wins
- YAML pipelines support variables, stages, and ordered steps.
- Sandboxed WebAssembly plugins have per-plugin capability grants.
- Handles semantic versioning, changelogs, releases, and package publishing.
Where it doesn't
- Requires working with YAML pipelines and plugins.
- Plugin capabilities may require configuration for each workflow.
- Support channels are documentation.
Our verdict on Moonlit
Moonlit is an open-source command-line build and release automation engine for teams that want to define pipelines in YAML and run them locally or in CI. Pipelines use variables, stages, and ordered steps, with steps calling WebAssembly plugins distributed through OCI registries. Its scope spans conventional-commit analysis, semantic version calculation, changelog generation, GitHub and GitLab releases, and publishing workflows. That breadth suits solo developers and small or mid-market teams that want an extensible pipeline without a paid-plan structure; it is less suited to teams looking for a hosted visual release-management service.
The plugin model is central to Moonlit’s approach. Plugins run as sandboxed WebAssembly components, and users can grant each plugin specific network, filesystem, environment-variable, and subprocess permissions. Plugin capabilities cover Git and GitHub or GitLab operations, Slack notifications, npm and .NET package builds and publishing, and Docker image builds and pushes. Plugins can also be distributed and cached as OCI artifacts. This makes Moonlit a fit for teams comfortable composing release workflows from plugins and managing permissions, rather than expecting every integration to be a direct built-in connection.
Release steps connect versioning and release artifacts: Moonlit analyzes conventional commits, calculates semantic version increments including prereleases, and generates categorized changelogs with optional AI-assisted refinement. Generated changelog data can be used to create GitHub and GitLab releases. The tool is open source under MIT or Apache-2.0 licenses and runs on Windows, macOS, and Linux. Its local-or-CI, self-hosted and desktop deployment model gives teams control over where pipelines run, while documentation is the listed support channel. Choose Moonlit if you want a free, extensible release pipeline and are prepared to work with YAML and plugins; consider alternatives if you need a hosted interface or broader support options.
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Moonlit pricing
Moonlit fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Free |
| Semantic versioning | Yes |
| Changelog generation | Yes |
| Release note automation | Yes |
| Release artifacts | npm packages, NuGet packages, Docker images, OCI plugin artifacts |
| Source platforms | Git, GitHub, GitLab |
| Package registries | npm registry, nuget.org, Docker registries, OCI-compliant registries |
| Deployment | Self-hosted, Desktop |
| Platforms | Windows, macOS, Linux |
| Support | Docs |
| Built for | Solo, Small business, Mid-market (editorial estimate) |
| Integrations | 8 integrations: Git, GitHub, GitLab, Slack, Docker, Node.js … |
| Pricing | Free plan |
| Website | moonlit.rs |
| Facts checked | 5 Oct 2026 |
Moonlit integrations
Moonlit lists 8 integrations on its own site.
- Git
- GitHub
- GitLab
- Slack
- Docker
- Node.js
- .NET
- OCI registries
Alternatives to Moonlit
- semantic-releaseAn open-source CI release tool that turns commit history into versions, notes, and published releases.9.1
- LernaLerna combines monorepo task orchestration with npm package versioning and publishing.8.1
- release-itA flexible release CLI that handles Git workflows, release notes and npm publishing.7.9
See all Moonlit alternatives →
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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