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

AGPL-3.0 remote desktop platform: fully private relay keeps session data off third-party infrastructure. SSO, auditing, and device management require the paid Pro tier.

An autonomous coding agent that integrates into your IDE to edit files, run terminal commands, and debug code with human-in-the-loop control.

Source-available LLM app platform that builds AI workflows, RAG pipelines and agents on a visual canvas, under the Modified Apache License 2.0.

AGPL-3.0 helpdesk with unlimited agents and tickets in the free self-hosted edition; LDAP and SAML ship standard, no enterprise paywall.

MPL-2.0 design platform on open web standards, a self-hostable Figma alternative with full data sovereignty. US parent creates CLOUD Act exposure that self-hosting neutralizes.

BSD-3-Clause self-hosted LLM interface. Unlimited users, full offline capability, no seat pricing, without ChatGPT's model training exposure.

MIT-licensed Python-native visual IDE for AI Agents and RAG pipelines: a drag-and-drop GUI for LangChain that exports straight to code.

MIT-licensed AI coding agent, model-agnostic across a broad range of providers. Runs in terminal, desktop, or IDE without Anthropic-only lock-in.

Open-source ambient sound and focus timer for distraction-free deep work: no subscription fee, no personal data collected, runs fully offline.

Apache-2.0 industrial-IoT platform for smart factories: connect machinery from different vendors on open NGSI-LD standards and keep production data in-house, without Siemens Mindsphere lock-in.

A 100% client-side, secure, and open-source alternative to iLovePDF. Process confidential documents without them ever leaving your browser.

Open-source toolkit for parsing complex documents (PDF, DOCX, HTML) into structured JSON/Markdown, purpose-built for Generative AI and RAG ingestion pipelines.

Local AI meeting assistant with zero cloud audio transit and full transcript ownership, for executives and legal teams where discussions cannot leave the device.

Apache-2.0 self-hosted video conferencing for web and mobile, with optional end-to-end encryption: no per-seat fees, no cloud dependency, full data residency.

AGPL-3.0 password manager for teams: self-host end-to-end encrypted vaults and own your keys, without 1Password's per-seat SaaS lock-in.

OSL-3.0 e-commerce platform from France: full data sovereignty, zero revenue tax at scale. Marketplace modules for advanced features carry separate commercial licences.

AGPL-3.0 open-core CRM on PostgreSQL: unlimited custom objects and workflow automation in the community edition; SSO and RBAC require paid tiers.

GPL-3.0 enterprise project management. EU-incorporated, no CLOUD Act exposure, native Gantt and agile tooling, without Jira's per-seat lock-in.

Open-source platform for building internal tools, dashboards, and automated workflows. A self-hostable 'High-Code Low-Code' alternative to Retool. SSO and audit logs require the Enterprise edition.