Outline
BSL 1.1 collaborative wiki and knowledge base. US-incorporated, CLOUD Act exposure. Commercial 'Document Service' use is prohibited without a paid license.
Kai A. Hartung
Metabase
AGPLv3-licensed, self-hosted BI platform. Zero per-user fees, full database ownership, unlimited dashboards, without Tableau's per-seat creator licensing.
Invoice Ninja
A source-available invoicing and billing suite for freelancers and agencies. Self-hostable with full feature access; white-labeling requires an annual license.
ClickHouse
Open-source OLAP database benchmarked as the fastest for real-time analytics at petabyte scale, a self-hosted alternative to Snowflake and BigQuery with no query-based pricing.
Budibase
The open-source low-code platform for building secure internal tools. A highly compliant, ISO 27001-certified alternative to Retool and Microsoft PowerApps.
BillionMail
The self-hosted email marketing platform with a built-in MTA. A high-risk, high-reward alternative to Mailchimp that offers unlimited sending but requires strict governance oversight.
Rocket.Chat: Why the world's most secure organizations are trading SaaS convenience for digital sovereignty
Slack and Teams offer convenience, but at what cost? For organizations that can't afford to lose control of their communications, Rocket.Chat is the standard-bearer for sovereign collaboration. Here is why the world's most security-conscious teams are making the switch.
Typebot
FSL-licensed conversational form and chatbot builder from TYPEBOT SAS (France, EU). Self-hostable on Docker with PostgreSQL; SSO and WhatsApp integration require paid tiers.
Listmonk
A high-performance, self-hosted newsletter and mailing list manager that provides enterprise-grade mass-mailing capabilities without the recurring per-subscriber tax.
DocuSeal
A secure, open-source alternative to DocuSign that enables businesses to automate document workflows and legally binding signatures with full data sovereignty.
Papra
AGPL-3.0 document management with native AES-256-GCM encryption. France-based, no CLOUD Act exposure, zero enterprise tax on self-hosted deployments.
OpnForm
AGPLv3 open-core form builder. France-based, no CLOUD Act exposure, self-hostable via Docker, without Typeform's per-response fees or data held hostage on vendor servers.
NocoDB
Source-available no-code layer for existing SQL databases. Zero record limits, auto-generated REST APIs, without Airtable's per-record pricing or proprietary data lock-in.
Blinko
An open-source, AI-first personal knowledge management tool featuring RAG-powered recall and a sovereign second brain architecture.
The Strategic Landscape of Open Source Licenses: A Comprehensive Compliance and Risk Analysis for the Modern Enterprise
Free software isn't "free" of responsibility. For the enterprise, the price tag is Due Diligence. This guide breaks down the strategic landscape of open source licenses (from Apache 2.0 to AGPL) and how to navigate compliance without stalling innovation.
Papra: The Modern Challenger in Open Source Document Management
Document management is usually clunky and enterprise-heavy. Enter Papra: a lightweight, modern challenger aiming to simplify the paperless office. We tested it to see if it's ready to dethrone the reigning champions of self-hosted archiving.
Mautic
A GPLv3-licensed, self-hostable marketing automation platform. Unlimited contacts, omnichannel campaigns, and full data ownership, without HubSpot's per-contact pricing.
Wazuh
GPL-2.0 unified XDR and SIEM platform from Wazuh, Inc. All capabilities including RBAC, threat hunting, and compliance mapping modules included in the open-source binary; paid tier is managed cloud only.
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. A €5M revenue threshold triggers mandatory commercial licensing with no open-source exit path.