This tool creates customized OpenWrt images for the needs of Freifunk Berlin. It builds images directly from the OpenWrt source code to create an Imagebuilder and SDK. The final images are build with the created Imagebuilder or a prebuild Imagbuilder can be used directly.



This project intends to simplify the sysupgrade process of devices running OpenWrt or distributions based on the former like LibreMesh. The provided tools here offer an easy way to reflash the router with a new version or package upgrades, without the need of opkg installed.

Additionally it offers an API (covered below) to request custom images with any selection of packages pre-installed, allowing to create firmware images without the need of setting up a build environment, even from mobile devices.

Flask-based code:

Javascript interface that allows to create and download an OpenWrt image by connecting to the API of a Attendedsysupgrade server.


Same idea (javascript app that connects to a Attendedsysupgrade API), but earlier prototype.


Buildsystem to generate custom Openwrt-Firmware files for different nodes in a community network.

It uses erb templates on config files per device, evaluated from inherited yaml files. There are two interfaces: command-line (rake) and web (simple Ruby on Rails app).


Slide of the presentation at Battlemesh v12:

Part of Temba, a helper script to build the environment to run the image builder.


Project by, a community ISP in France.

Python program that uses YAML templates to generate images for various devices. No web interface.


The “LibreMesh software development kit” uses the OpenWRT SDK and ImageBuilder to generate (cook) LibreMesh packages and firmware. If you want to create your own LibreMesh flavor because you need some specific configuration or you just want to have control over your binaries, the cooker is your friend!

Command-line interface, but can also be used with Chef.


Simple wrapper around ImageBuilder, that automatically downloads the right ImageBuilder archive.


Older initiative, was the basis of Temba:

Project by Freifunk: meshkit is a webinterface for the OpenWrt image generator. It allows you to build customized OpenWrt firmware images to use on your router/access point. It also offers templates for each Freifunk community.


Relevant links:

Not much activity as of 2019?

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  • Last modified: 2020/01/05 10:01
  • by lujimmy