Tup
Tup: A free, open-source choice for dependency-aware incremental builds. Ranked #30 of 42 in Build Automation Software by our editors (7.0/10); pricing: Free plan; best for dependency-graph builds with automatic cleanup.
At a glance
- Editor score7.0 / 10
- PricingFree plan
- Best forDependency-graph builds with automatic cleanup
- Free planYes
- Paid fromFree
- Facts checked22 Sep 2026
Where it wins
- Incremental, parallel builds with dependency-aware execution
- Automatic cleanup of obsolete generated files
- Supports Linux, macOS, Windows, Lua, and build variants
Where it doesn't
- No verified caching features
- No packaging capabilities
- No verified integrations with external platforms
Our verdict on Tup
Tup is a file-based build system for software projects that models dependencies as a directed acyclic graph. It is intended for developers who want source-controlled build definitions and dependency-aware rebuilds across Linux, macOS, and Windows. Build instructions are stored in Tupfiles, with optional Lua support, and the project is free to use under its open-source pricing model.
Its strongest fit is for projects where efficient change detection and precise rebuild behavior matter. Tup automatically scans the filesystem for changes, updates dependent files incrementally, and runs independent build commands in parallel. Multiple build variants can be kept in separate directories, while automatic cleanup removes obsolete generated files. It can also generate standalone shell or Windows batch scripts and compilation databases, giving teams additional build outputs beyond the primary Tup workflow.
Tup favors a focused build-system approach rather than a broader automation ecosystem. The published feature set covers dependency processing, build-definition languages, script generation, variants, and compilation database generation, but it does not provide verified caching, packaging, or integrations. That makes it a practical choice for developers who want a free, open-source, multi-platform tool centered on source-defined dependency graphs and automatic cleanup. Teams seeking integrated packaging, external service connections, or cache-focused build acceleration should consider an alternative with those capabilities. The official license page also describes a case-by-case commercial license for distributing Tup as part of a larger closed-source work.
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Tup pricing
Tup fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Free |
| Build as code | Yes |
| Dependency locking | Not verified |
| Build caching | Yes |
| Remote execution | Not verified |
| Artifact packaging | Not verified |
| Supported operating systems | Multi-platform |
| Deployment | Self-hosted |
| Platforms | Linux, macOS, Windows |
| Support | Community, Docs |
| Built for | Solo, Small business, Mid-market, Enterprise (editorial estimate) |
| Pricing | Free plan |
| Website | gittup.org |
| Facts checked | 22 Sep 2026 |
Alternatives to Tup
- BazelA powerful open-source choice for large polyglot builds and remote execution.9.4
- PantsA capable open-source choice for monorepos that need precise caching and dependency handling.9.3
- NxA capable choice for JavaScript monorepos that need affected builds and managed CI scaling.9.1
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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