GPL-3.0 search engine: single C++ binary with Raft clustering, vector search, and typo tolerance included at no cost. SOC 2 Type II and HIPAA verified for Typesense Cloud.
Open Source Alternatives: The Sovereign Stack
A curated database of vetted open source alternatives to proprietary SaaS. Find tools that are safe, compliant, and ready for business.
Showing of 219 solutions
Headless commerce API for web, mobile, and POS from a single GraphQL core. All platform features in the open-source release; no paywalls.
POCL-licensed PIM, MDM, and DAM platform. Austria-based, EU jurisdiction. A €5M revenue threshold triggers mandatory commercial licensing for production use.
AGPL-3.0 IT asset management system: tracks hardware, licences, accessories, and consumables with no user or asset limits. No feature paywalls; SLA support and priority fixes require a paid plan.
MIT-licensed, self-hosted uptime monitoring and status page tool: HTTP/S, TCP, DNS checks with 90+ notification channels; single-instance architecture with no RBAC or multi-region polling.
MIT-core identity provider for SSO, LDAP federation, SAML, and OIDC. It unifies authentication across your entire stack. Advanced compliance features and SLA support require the Enterprise edition.
Source-available, self-hosted workflow automation platform. Unlimited executions, full data sovereignty, no per-task fees. All without Zapier's volume pricing or cloud exposure.
BSD-3-Clause backend-as-a-service: auth, database, storage, functions, and real-time subscriptions in one self-hosted platform. A sovereignty-first alternative to Google Firebase.
Self-hosted BI platform with a semantic layer, 40+ chart types, and no per-seat fees, a SQL-first alternative to Tableau and PowerBI at petabyte scale.
MIT-licensed headless commerce engine. Zero GMV tax, full database ownership, no revenue sharing, for B2B and DTC architectures that Shopify Plus cannot accommodate.
Open-core secrets management platform that stores application secrets and certificates and syncs them across your infrastructure, under MIT.
MIT-core no-code database platform: unlimited records, no per-row pricing, full relational backend. A self-hostable Airtable alternative; advanced roles and premium plugins require paid plans.
Enterprise API development platform. A fast, open-source alternative to Postman for REST, GraphQL, and gRPC testing with full data sovereignty.
AGPL-3.0 self-hosted alternative to Google Photos: automatic mobile backup, facial recognition, and timeline search with no cloud dependency or per-storage fees.
AGPL-3.0 customer feedback platform: surveys, NPS scoring, and in-app widgets with full data ownership and zero per-response fees.
Open-core observability platform for logs, metrics and traces on OpenTelemetry, run on your own servers, under MIT.
Open-core team chat server for messaging in channels and threads, run as one binary with PostgreSQL, under AGPL-3.0-only.
An open-source, self-hosted alternative to Notion and Confluence, providing real-time collaborative documentation and wikis with complete data sovereignty.
Apache-2.0 Identity and Access Management (IAM) server: SSO, identity federation and user data on your own infrastructure, with no per-user licensing costs.
MIT-core product analytics platform: event tracking, session replay, feature flags, and A/B testing unified. RBAC and SAML are gated behind paid enterprise add-ons.
Open-source identity and access management for multi-tenant B2B apps: single sign-on, MFA and passkeys, delegated administration per customer organisation, built-in audit trail. AGPL-3.0.
Self-hosted PaaS for deploying applications, databases, and services on your own infrastructure, a sovereign alternative to Heroku and Vercel with no per-deployment fees.
Linux Foundation-governed secrets management with zero enterprise tax and dynamic credentials, without HashiCorp's BSL lock-in.