What are the best Add Ons repositories on GitHub?

The top-ranked Add Ons open source repositories include mozilla/web-ext, projectsveltos/addon-controller, openhab/openhab-addons, tracked and evaluated by community adoption, stars, and code commits.

How do I find trending Add Ons open source tools?

Browse this curated Add Ons directory to monitor real-time GitHub star velocity, latest code releases, and rising developer tools updated daily.

Are Add Ons GitHub repositories free and open source?

Most Add Ons projects listed here are distributed under open source licenses (such as MIT, Apache 2.0, or GPL). Always check individual project repositories for exact license terms.

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Add Ons GitHub Repositories (2026) · Open Source Tools

Discover the best Add Ons open source repositories on GitHub. Explore trending tools, live star counts, source code, and developer projects updated daily.

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3 matching projects · updated Nov 13, 2026 How we rank ↗

#1 TRENDING mozilla/web-ext JavaScript 2016

A command line tool to help build, run, and test web extensions

◇ add-ons ◇ browser-extension ◇ javascript ◇ webextension

387 ↑ +1 today

3.1K

#2 TRENDING projectsveltos/addon-controller Go 2022

Sveltos Kubernetes add-on controller programmatically deploys add-ons and applications in tens of clusters. Support for ClusterAPI powered clusters, Helm charts, kustomize ,YAMLs. Sveltos has built-in support for multi-tenancy.

◇ add-ons ◇ addons ◇ devops ◇ gitops

52 ↑ +1 today

585

#3 TRENDING openhab/openhab-addons Java 2014

Add-ons for openHAB

◇ add-ons ◇ java ◇ openhab

3.7K ↑ +1 today

2.1K

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Add Ons GitHub Repositories (2026) · Open Source Tools

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