Flatpak Builder

Linux

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Freedom report

Two barsScore 6.1

Free tierA free tier is on its own pricing page
Open codeNo open-source code on record
Runs widely1 of 6 device platforms
DocumentedPlans, terms and facts published

Flatpak Builder is ranked #41 of 93 in package managers on Freedom251. It runs on Linux. There is a free plan.

Flatpak Builder plans and pricing

All plans

Flatpak Builder Free No paid plans or usage limits stated on the pages reviewed docs.flatpak.org · 4 Oct 2026

Compared on package managers

Target platforms: Linux
Output formats: Flatpak application, OSTree repository
Command-line packaging: Yes
Silent installation: Yes
Auto-update support: Yes
Delta updates: Yes
CI/CD integration: Yes

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The record

Purpose: Flatpak Builder is the primary tool for building Flatpak applications from source files.
Builds: It can build application dependencies alongside the app and bundle them into the build.
Manifests: Builds use a manifest that specifies application parameters, runtime, modules, and build instructions.
Sources: A manifest can specify module sources such as file archives or version control repositories.
Build environment: Flatpak applications are built inside an SDK that includes development tools such as compilers and debuggers.
Export and install: Builder can export applications to a repository or install a build locally with the --install option.
Distribution: Flatpak Builder is packaged by popular Linux distributions and is also available as a Flatpak package on Flathub.
Source verification: During a build, source code for each module is downloaded and verified.
Repository signing: The documentation recommends signing every repository commit with a GPG signature and describes Builder's --gpg-sign option.
Security model: Flatpak applications run in sandboxes and access to user files, network, devices, and other host resources must be explicitly granted.
Supported audience: The documentation is primarily intended for application developers and distributors.
Notable limits: Flatpak runs only on Linux, and applications that need elevated privileges, host process access, or kernel modules may not be suitable for it.
Project and support channels: Flatpak is developed by an independent open source community, and its About page lists mailing lists, a security mailing list, Matrix, and GitHub.
Price from: Free

Where it ranks on Freedom251

Best Package Managers in 2026#41 of 93
Best Software Packaging Tools in 2026#7 of 28

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Sources

docs.flatpak.org/en/latest/building-introduction.html· checked 4 Oct 2026
docs.flatpak.org/en/latest/flatpak-builder.html· checked 4 Oct 2026
docs.flatpak.org/en/latest/basic-concepts.html· checked 4 Oct 2026
docs.flatpak.org/en/latest/· checked 4 Oct 2026
docs.flatpak.org/en/latest/introduction.html· checked 4 Oct 2026
flatpak.org/about/· checked 4 Oct 2026