Find the Best Open Source Alternatives to Popular Software

Self-hosted personal finance manager for tracking expenses, budgets, and net worth via Docker.

Open-source knowledge base combining note-taking, whiteboard, and project planning in one workspace.

Lightweight self-hosted app for managing personal file-based notes and checklists.

Privacy-focused, open-source note-taking and to-do app with end-to-end encryption and multi-device sync.

Open-source identity and access management with SSO, OAuth2, OIDC, and SAML support for modern applications.

Free, open-source backup software that stores encrypted, incremental backups to cloud storage and remote servers.

Open-source AI IDE that plans before it codes, using spec-driven development with requirements, design, and task steps.

Self-hostable social media scheduler for content creators and small teams with distributed job processing.

A full-stack TypeScript CMS built on Astro and Cloudflare, reimagining WordPress with serverless, type-safe foundations.

Free browser-based invoice generator with live PDF preview, no sign-up required, and support for 120+ currencies.

Self-hosted file sharing and management platform with file transfers, pastes, collections, and a REST API.

Self-hosted, open-source headless CMS built specifically for Astro.js with a block-based page builder.