Les Petites Pierres is a French crowdfunding platform dedicated to supporting nonprofit associations working to improve access to decent housing and address poor housing conditions. It connects associations with donors through online fundraising campaigns, with a distinctive promise: donations made through the platform are doubled. The platform is free for associations and donors, charges no commission, and offers participating associations personalized support throughout their campaigns. It also provides information for donors about giving and tax deductions, including a fiscal receipt for eligible donations.

Projects featured on Les Petites Pierres focus on tackling social exclusion, promoting autonomy, combating energy poverty, improving living conditions, and building social connections through housing. Campaigns can support initiatives such as renovating accommodation, creating inclusive shared homes, providing shelter for young people, or helping families secure stable housing. Projects are reviewed by a validation committee before being presented to the public. Through fundraising, campaign updates, and donor engagement, Les Petites Pierres helps associations raise money for practical, community-led housing initiatives and make their impact more visible.