A new open-source project called Locker aims to replace commercial cloud storage services like Dropbox and Google Drive by letting users store files in their own S3 buckets. The tool, which emerged from a challenge to build an open-source Dropbox alternative, supports multiple storage providers including AWS S3, Cloudflare R2, and Vercel Blob through a single environment variable configuration.

Locker offers a comprehensive file management system with features like virtual bash shell access, searchable content within images and PDFs using a QMD Search plugin, and team collaboration with role-based permissions. The platform provides a type-safe API using tRPC and supports both email/password and Google OAuth authentication. Users can switch between storage providers without changing code, making it easy to migrate or optimize costs.

The project addresses growing concerns about vendor lock-in and privacy in cloud storage. By allowing users to self-host their file storage infrastructure, Locker eliminates third-party access to sensitive documents and avoids unexpected pricing changes. The tool is available as open-source software with a free forever tier, positioning itself as a privacy-focused alternative for users who want full control over their data storage infrastructure.