The European Space Software Repository (ESSR) is an ESA informational web portal created to promote reuse of Software - including Open Source Software (OSS) - and to provide all parties involved in the European Space software development (in particular SMEs) with access to results of previous investments.
Please click here to register and get full access to the ESSR.
Only a limited number of projects is visible to the non-registered users.
Registration is available for everyone residing in an ESA member state.

available projects


The APSI Framework has been developed by ESA with the aim of creating a software platform to improve the cost-effectiveness and flexibility of the development of pl...

Updated on: 11/12/2019
Created on: 14/09/2017
ESA Operations software products

As part of the engineering activities related to the procurement of integrated systems required to support unmanned spacecraft mission preparation and operation, ES...

Updated on: 27/03/2023
Created on: 14/11/2016
MicroPython for LEON, pre-qualified version

MicroPython is a lean and efficient implementation of the Python 3 programming language that includes a small subset of the Python standard library and is optimised...

Updated on: 07/07/2023
Created on: 27/07/2016
Owner: ESA
Tags: Python LEON
NIR HAWAII-2RG Data processing algorithms - Benchmarking software

This software implements algorithms to process raw frames coming from a near infrared (NIR) HAWAII-2RG detector. The algorithms are implemeneted in floating point a...

Updated on: 04/09/2018
Created on: 24/05/2016
Owner: ESA
SCOC3 Basic SW

The SCOC3 ASIC is a powerful chip developed by Astrium with ESA co-funding. It implements a LEON 3 plus 2 x 1553 bus, 2 x CAN Bus, 7 x SpaceWire, 1 x TMTC... etc...

Updated on: 03/03/2017
Created on: 14/04/2016
Version Control System: git
Owner: ESA
ASN1SCC - ASN.1 Space Certifiable Compiler

ASN1SCC is an ASN.1 compiler that was developed for ESA to cover all data modelling needs of space applications. The compiler is targetting safe systems and genera...

Updated on: 17/05/2018
Created on: 29/04/2015

OpenGEODE is a tiny open-source SDL editor that is developed for the purpose of providing an easy to use and free state machine editor and Ada code generator to the...

Updated on: 25/11/2016
Created on: 29/04/2015

TASTE is a development environment dedicated to embedded, real-time systems and was created under the initiative of the European Space Agency back in 2008, after th...

Updated on: 20/01/2021
Created on: 24/04/2015
Owner: ESA
ESA Architecture Framework

ESA-AF delivers a solid base for enterprise architecting  and systems of systems (SoS) engineering in  the space domain by establishing a common architecture defi...

Updated on: 17/03/2023
Created on: 03/03/2015