Martech.surf

Toolshed

The best open source tools for marketing technologists, growth hackers, and data-driven marketers. No vendor lock-in, full control, community-powered.

Analytics

  • Plausible Analytics - Privacy-first, cookie-free web analytics. Open source (AGPL), self-hostable or cloud. Simple dashboard with essential metrics.
  • PostHog - Full-featured product analytics. Open source (Apache 2.0), self-host or cloud. Includes session recording, feature flags, and surveys.
  • Umami - Simple, privacy-focused web analytics. Open source (MIT), self-hosted. Clean interface, low resource usage.
  • Ackee - Self-hosted analytics with a focus on privacy. Open source (MIT), anonymous tracking by default.

AI & Machine Learning

  • Ollama - Run open-source LLMs (Llama, Mistral, Qwen, etc.) locally with one command. Open source (MIT), no API fees, no data leaves your machine.
  • Open WebUI - ChatGPT-style web interface for self-hosted LLMs. Open source (MIT), pairs natively with Ollama, supports RAG, image generation, and voice.
  • n8n - Workflow automation with native LLM, RAG, and agent nodes. Sustainable open-core (Sustainable Use License), 400+ integrations, self-hostable.
  • Langflow - Visual drag-and-drop builder for LLM and RAG pipelines. Open source (MIT), exports to Python, lowers the barrier from idea to prototype.
  • AnythingLLM - All-in-one RAG desktop and server app over your own documents. Open source (MIT), Docker-installable, works with any local or API LLM.
  • Haystack - Production-grade framework for RAG and agent pipelines. Open source (Apache 2.0), Python-native, used at scale by enterprises.

Email Marketing

  • Mailcow - Dockerized email server suite. Includes postfix, dovecot, SOGo, and spam filtering. Fully self-hosted email solution.
  • Listmonk - Self-hosted newsletter manager. Open source (Apache 2.0), high performance, built on Go.

Marketing Automation

  • Mautic - Enterprise-grade marketing automation. Open source (GPLv3), extensive features including campaigns, scoring, and dynamic content.

Consent & Privacy

  • Osano - Consent management platform with open core model. Free tier available, enterprise features paid.
  • Termly - Consent management and privacy policy generator. Free tier for basic use.

Data & CDP

  • RudderStack - Open-source Customer Data Platform (Apache 2.0). Collect and route customer event data to warehouses.
  • Airbyte - Open-source data integration (Apache 2.0). ELT pipeline to sync data from APIs to warehouses.
  • dlt - Data load tool - open source (Python). Lightweight data extraction and loading.

CMS & Web

  • Strapi - Headless CMS, open source (MIT). API-first, highly customizable.
  • Directus - Open-data platform (GPLv3). Turns any SQL database into an instant API and admin panel.
  • Ghost - Professional publishing platform. Open source (MIT), great for newsletters and content sites.
  • Grav - Modern flat-file CMS. Open source (MIT), no database required, plugin ecosystem.

Last updated: October 2026. We verify these links regularly. If you find a broken link or outdated info, please let us know.

Disclaimer: These are tools we find interesting or useful. We are not affiliated with any of these projects.