NUMDAM is the reference French digital mathematics library set up by Cellule MathDoc with the assistance of a network of partners.

The service started around the year 2000 with the pilot digitisation phase of 5 journals, for a first public release in January 2003. The digitisation program, which is still active, then continued by expanding the corpus geographically (European journals) and thematically (mathematics, physics, statistics, computer science, and related sciences). Book series and theses were added as of 2010.

From 2007 onwards, agreements were made with some publishers to ensure the continuity of the collections, so that one will also find born digital articles supplied directly by these publishers. Collections are normally indexed within one year of publication, and full texts are freely downloadable at the end of a period of time set by agreement upon each title, called the moving wall.

As of 2016, collections digitised by partners and re-indexed by Mathdoc with more details are integrated into the search engine. Documents thus gain greater visibility and this facilitates the discovery of content relevant to our users. The first example is the Journal de mathématiques pures et appliquées, digitised by the Bibliothèque nationale de France in its Gallica program.

As of 2018, articles of centre Mersenne's mathematical journals are indexed within one year of publication.

The Numdam program is designed to support academic publishers and provide the research community with a sustainable, reliable and easy-to-use library. The research and dissemination platform was completely redesigned in 2016.

Numdam has been awarded "CollEx" status since 2018.