Les Petites Pierres is a French crowdfunding platform dedicated to helping associations address poor housing and improve access to decent homes. It connects donors with nonprofit projects focused on tackling social exclusion, supporting autonomy, combating energy poverty, improving living conditions, and creating social ties through housing. Campaigns featured on the platform support initiatives such as renovating accommodation, developing inclusive and shared housing, and providing shelter for people in vulnerable situations.

Individuals can browse projects and make donations, while associations can submit fundraising campaigns and share updates with supporters. A distinctive feature is that donations are doubled through the platform, helping participating projects raise more. Les Petites Pierres states that the service is free for associations, charges no commission, and offers project leaders personalized support. The platform also provides information for donors about tax deductions and says eligible donations are deductible at 75%, with a tax receipt provided. Projects are reviewed by a validation committee, and the site shares campaign stories and testimonials to show how community giving can contribute to more dignified housing.