The open-source Firebase alternative — Postgres database, auth, and storage in one platform.
#open-source
34 tools
The most private VPN — no email, no account name, just a random number.
Open-source password manager with a genuinely free tier covering unlimited passwords.
The most widely used code editor, free and extensible with thousands of plugins.
Error tracking and performance monitoring that tells developers exactly what broke and why.
The original hardware wallet, with a fully open-source firmware and software stack.
A free, open-source e-commerce plugin that turns WordPress into an online store.
Open-source scheduling software — a self-hostable, white-label alternative to Calendly.
The most widely used content management system, powering a huge share of the web.
A lighter-weight, open-source-friendly alternative to Postman for API testing.
Open-source design and prototyping tool that runs in the browser, no proprietary lock-in.
Open-source AI coding assistant you can run with any model, including local and self-hosted.
A privacy-focused, open-source browser independent of the major ad-tech companies.
A powerful, self-hostable search and analytics engine used across the industry.
A highly customizable, self-hosted e-commerce platform for large, complex stores.
A widely used static code analysis platform for code quality and security.
An open-source CMS built for complex, highly customized enterprise websites.
Free, open-source multi-track audio editor with one of the longest track records in the category.
Free issue tracking built directly into every GitHub repository, linked natively to code.
Free, open-source screen recording and live streaming software with a flexible scene-based system.
Open-source workflow automation tool, self-hostable to escape per-task SaaS pricing.
Open-source dashboarding and visualization tool for metrics, logs, and traces from any data source.
Modernized, highly extensible fork of the classic Vim text editor.
Open-source BI tool that lets non-technical users explore and query data without writing SQL.
Open-source publishing platform for writers and newsletter creators, with no revenue cut on self-hosted plans.
Open-source backend-as-a-service, self-hostable alternative to Firebase and Supabase.
Open-source, lightweight browser-based alternative to Postman for API testing.
Open-source invoicing tool, free with unlimited invoices when self-hosted.
Agentless configuration management and automation tool from Red Hat, using readable YAML playbooks.
Fast, open-source search engine built as a much simpler Elasticsearch alternative.
Free, open-source slicing software from Prusa Research, known for fast performance and good default profiles.
Free, open-source clipboard manager for Windows with full history search.
Open-source search engine positioned as a fast, typo-tolerant, self-hostable Algolia alternative.
Open-source CMS positioned between WordPress's simplicity and Drupal's deep customizability.
Frequently Asked Questions
- What are the best open-source tools?
- Based on community votes, the top-rated tools tagged "open-source" on Kreemhunt are Supabase, Mullvad VPN, Bitwarden, among 34 tools total carrying this tag. See the full ranked list below.