No FOSS, No PATTIC.

PATTIC relies on FOSS (free and open-source software) tools — made by generous, skilled communities around the world. We’re grateful to the creators, maintainers and contributors behind FOSS. We could not have imagined, built and continue to run PATTIC without their contributions.

Here is the list of Free & Open Source Softwares (FOSS), Communities and FOSS Friendly services that help us build, run, and maintain PATTIC. Please do consider contributing to them through donations, code, using their reasonably priced cloud offerings and spreading the word about the wonderful work they do.

website and NEWSLETTERS
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Ghost: The best open source blog & newsletter platform

Ghost publishes blog posts and sends email newsletters—all from one place. It’s fast, open-source, and comes with built-in tools for writing, design, and audience management.

Get involved:
Contribute to GitHub
- Website

Community Forum
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Discourse: Modern open-source discussion platform

Discourse runs our community forum at forum.pattic.org. It’s a powerful, user-friendly, moderator-friendly platform designed to nurture meaningful conversations.

Get involved:
- Contribute to GitHub
- Website

Knowledge bank
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BookStack: Open‑source wiki software for organising documentation

We use BookStack to keep all our knowledge; like courses, guides, and manuals—neatly organised.

Get involved:
- Donate
- Website

Email Campaigns
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Listmonk: Self-hosted newsletter and mailing list manager

Listmonk is an open-source, self-hosted newsletter & mailing-list manager, designed for high-performance bulk email campaigns. 

Get involved:
- Contribute to Github
- Website

website
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Meilisearch: Fast, relevant, open-source search engine

Meilisearch powers universal search across our main site, forum & library. This makes it easy for users to find exactly what they’re looking for across all our content.

Get involved:
- Contribute to GitHub
- Website

Analytics
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Plausible Analytics: Simple, privacy‑focused open‑source web analytics

Plausible helps us understand website visitors in a privacy‑respecting way—no cookies and no personal data ever collected.

Get involved:
- Contribute to GitHub
- Website

Hosting
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DigitalOcean: Cloud infrastructure powered by and for open-source

We host our services on DigitalOcean Droplets and managed infrastructure because they understand and support FOSS deeply.

Get involved:
Contribute to GitHub
- Website

Monitoring
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Uptime Kuma: Self‑hosted monitoring tool

Uptime Kuma checks if our services like website, forum, library are working properly and accessible to users.

Get involved:
Contribute to GitHub
- Website

DNS
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Cloudflare: Secure, fast and open-source-friendly internet services

We use Cloudflare to make our website faster, safer, and reliable. They protect us from attacks, speed up loading times, and help control DNS.

Get involved:
Contribute to GitHub
- Website

dns tool

Domain Expiry Checker: A small tool to check when our domain names will expire

We use this free and open-source tool to keep an eye on our domain names. It regularly checks the expiry date of each domain and sends us alerts before anything is close to expiring.

Get involved:
Contribute to Github

podcast
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Castopod: Open-source podcast hosting

We use Castopod to host and publish our podcasts, keeping full control over our content.

Get Involved:
Contribute to GitHub
- Donate
- Website

Mind-mapping
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Excalidraw: Free, open‑source sketching tool for hand‑drawn style diagrams

We use Excalidraw to make quick, informal diagrams—like flowcharts, mind maps, and sketches—that look hand-drawn. It’s browser-based, so no app download is needed, and it’s completely FOSS (MIT‑licensed).

Get Involved:
Contribute to GitHub
- Website

Community

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FOSS United: India’s largest free and open-source software community, powered by volunteers

FOSS United is a non-profit foundation working across India to promote open-source software, build grassroots communities, and support events like IndiaFOSS and FOSS Hack.

Get Involved:
Contribute to GitHub
- Website

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OASIS India: Alliance promoting FOSS & social innovation across the nonprofit sector

OASIS connects tech organizations and nonprofits in India to use open-source tools for social impact. It helps NGOs do more with less by teaching FOSS and supporting useful tools and resources.

Get Involved:
- Website