The association
Who we are
ODERSA (Organisation pour le Développement de l’Éducation, des Ressources et des Savoirs Accessibles) is a French nonprofit association (loi 1901), declared in Paris and run entirely by volunteers. The association works to make education accessible to everyone: online first, and on the ground when it helps.
Our mission
“To promote and make education, training, and the sharing of knowledge accessible to everyone, free of charge and without any commercial consideration, across the fields of schooling, higher education, professional life, culture, and civic life.”
Our bylaws, article 2 (excerpt, translated from French)
The name
Four words that commit us
ODERSA stands for Organisation pour le Développement de l’Éducation, des Ressources et des Savoirs Accessibles: French for “Organization for the Development of Accessible Education, Resources, and Knowledge”. Every word in the name is a choice. “Development” means building things that last, not one-off operations. “Resources” and “Knowledge” mean concrete tools you can pick up, photocopy, and reuse, not statements of intent. “Accessible” means free, available in several languages, usable with no account and no conditions, for everyone. In everyday use, the association simply goes by ODERSA.
What we do
What we do

Online educational resources
We design and publish free educational sites: no account, no ads, no data collection, usable on a phone just as well as in a computer room. Every resource is published under an open CC BY 4.0 license, so teachers and activity leaders can make it their own without asking our permission. Our first project shows what that standard means in practice: it launched in 7 languages, with its own classroom guide, a printable workshop booklet, and data downloadable in an open format.

Occasional activities on the ground
When a host organization asks and it makes sense, we run something in person: a workshop, a session, some support. Always built together with the host, who knows its own audience and sets the frame; always free for participants; always followed by a report on what was done and learned. Online work gives reach; in-person work gives depth: both serve the same mission.
The dates
The founding, piece by piece
Founding general meeting
The bylaws are adopted. Article 2 sets out the essential point: making education accessible to everyone, free of charge and without any commercial consideration.
Declaration at the Préfecture de Police de Paris
The association is declared under RNA number W751284255. The receipt is issued on 15 May.
Published in the Journal officiel
The association’s creation appears in the Journal officiel des associations (JOAFE, announcement no. 1176): its existence becomes public and legally binding.
First project online
Avant d’y croire opens to everyone: 750 training cases for checking information, in 7 languages, free and open to reuse.
Our principles
Our principles
Free, no strings attached
No paid activity, no gated content, nothing asked in return from the people we serve.
Open by default
Content and data published under CC BY 4.0: reuse, adapt, translate, all of it allowed with a simple credit.
Verifiable rigor
No figures you cannot check, no decorative promises. What we state can be recounted; what we announce exists.
Governance
Run simply, and by volunteers
The association is chaired by Mael Garbe, a volunteer. It has no employees: design, publishing, and administration all rest on the volunteer work of its members. This simplicity is a choice: the resources go to the work.
It comes with a trade-off we accept: being accountable. The figures we publish can be recounted by anyone, the way our content is made is documented step by step, and supporters are named publicly. An association that asks for trust should start by making itself verifiable.
Legal framework
A declared association, verifiable in the public registers
| Legal form | Nonprofit association under the French law of 1901 |
|---|---|
| Full name | ODERSA: Organisation pour le Développement de l’Éducation, des Ressources et des Savoirs Accessibles |
| Declaration | 13 May 2026, Préfecture de Police de Paris |
| Publication in the Journal officiel | 19 May 2026 (JOAFE, announcement no. 1176) |
| RNA no. | W751284255 |
| SIRET no. | 105 144 265 00011 |
| APE code | 85.59B (Other education) |
| Registered office | 36, rue Scheffer, 75116 Paris, France |
These references can be checked in the public registers: the Journal officiel des associations (journal-officiel.gouv.fr) and Insee’s Sirene directory.