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 125 solutions
Saleor
Headless commerce API for web, mobile, and POS from a single GraphQL core — all platform features in the open-source release; no paywalls.
Pimcore
POCL-licensed PIM, MDM, and DAM platform. Austria-based, EU jurisdiction — €5M revenue threshold triggers mandatory commercial licensing with no open-source exit path.
Snipe-IT
AGPL-3.0 IT asset management system — tracks hardware, software licences, accessories, and consumables with no user or asset limits. No feature paywalls; SLA support and priority fixes require a paid plan.
Uptime Kuma
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.
Authentik
MIT-core identity provider for SSO, LDAP federation, SAML, and OIDC — unifies authentication across your entire stack. Advanced compliance features and SLA support require the Enterprise edition.
n8n
Source-available, self-hosted workflow automation platform. Unlimited executions, full data sovereignty, no per-task fees — without Zapier's volume pricing or cloud exposure.
Apache Superset
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.
Medusa
MIT-licensed headless commerce engine. Zero GMV tax, full database ownership, no revenue sharing — for B2B and DTC architectures that Shopify Plus cannot accommodate.
Infisical
MIT-core secret management platform — end-to-end encrypted secret syncing across your entire infrastructure. SSO, RBAC, and audit logs require the Enterprise edition.
Baserow
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.
Hoppscotch
Enterprise API development platform. A fast, open-source alternative to Postman for REST, GraphQL, and gRPC testing with full data sovereignty.
Immich
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.
Formbricks
AGPL-3.0 customer feedback platform — surveys, NPS scoring, and in-app widgets with full data ownership and zero per-response fees.
SigNoz
MIT-core application observability — unified APM, logs, and traces via OpenTelemetry, with no per-host or ingestion fees. SAML SSO and RBAC require the Enterprise Edition.
Mattermost
A secure, self-hostable, open-source communication platform designed for enterprises that prioritize data sovereignty and require a private alternative to SaaS chat solutions.
Docmost
An open-source, self-hosted alternative to Notion and Confluence, providing real-time collaborative documentation and wikis with complete data sovereignty.
Keycloak
The open-source standard for Identity and Access Management (IAM), offering complete sovereignty over user data, federation, and SSO infrastructure without per-user licensing costs.
PostHog
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.
Zitadel
AGPL-3.0 IAM platform from Switzerland — SOC 2 Type II and ISO 27001:2022 verified on the SaaS tier; self-hosted edition has no MAU limits, B2B multi-tenancy and SAML included.
Coolify
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.
OpenBao
Linux Foundation-governed secrets management with zero enterprise tax and dynamic credentials — without HashiCorp's BSL lock-in.