Crossposter

Crossposter is an open-source, local-first social media publishing dashboard designed for developers, content creators, and social media managers who prioritize privacy and control. It allows users to compose posts once and publish simultaneously across their own social accounts directly from their localhost environment. The tool supports attaching media, checking platform-specific limits, scheduling posts, and managing drafts and history—all while keeping configurations, uploads, and credentials securely stored on the user's machine. Its open-source nature and local-first approach make it particularly appealing to those who prefer self-hosted solutions free from reliance on third-party cloud services. By integrating seamlessly with multiple platforms and emphasizing privacy, Crossposter empowers users to streamline their social media workflows with full control over their data. Its user-centric design and developer-friendly features make it a unique tool for those who want a customizable, secure, and efficient publishing experience.