Topics & Niches
Top Open Source Websites
Browse live examples related to Open Source, then open the strongest domains to inspect traffic, SEO, business posture, and trust signals in more detail.
Cluster total
2,332
Use the full cluster to move from a broad theme into a smaller report shortlist.
Cluster coverage
473 with traffic data
Traffic coverage tells you how many sites in view already support stronger prioritization work.
Fastest analyst move
Open wikipedia.org
Then compare it with telegram.org to tell whether the first result is representative.
Sort:
#11 rank100/100 trust
wikipedia.org
Live site data
Wikipedia is a free online encyclopedia, created and edited by volunteers around the world and hosted by the Wikimedia Foundation.
encyclopedianon-profitcrowdsourced
wikipedia.org
3683.1M/mo
#50 rank79/100 trust
telegram.org
Live site data
Telegram Messenger
messaginginstant messagingmobile app
telegram.org
491.2M/mo
#85 rank84/100 trust
brave.com
Live site data
The Brave browser is a fast, private and secure web browser for PC, Mac and mobile. Download now to enjoy a faster ad-free browsing experience that saves data and battery life by blocking tracking software.
web browserprivacyad blocker
brave.com
479.3M/mo
#263 rank81/100 trust
wordpress.com
Live site data
Create your WordPress website with built-in hosting, premium themes, and powerful tools. No technical setup required. Start building today—free plan available.
wordpresscmswebsite builder
wordpress.com
159.8M/mo
#600 rank71/100 trust
wikimedia.org
Live site data
The Wikimedia movement is a global community of people, projects, and activities working together to create and share knowledge freely.
nonprofitopen-sourceknowledge
wikimedia.org
71.9M/mo
#639 rank79/100 trust
proton.me
Live site data
Over 100 million people use Proton to stay private and secure online. Get a free Proton account and take back your privacy.
privacyencryptionemail
proton.me
60.2M/mo
#1.3K rank71/100 trust
windows.net
Live site data
.NET is a developer platform with tools and libraries for building any type of app, including web, mobile, desktop, games, IoT, cloud, and microservices.
Microsoft.NETDeveloper Platform
windows.net
45.3M/mo
#1.4K rank74/100 trust
annas-archive.li
Live site data
The world’s largest open-source open-data library. Mirrors Sci-Hub, Library Genesis, Z-Library, and more.
shadow libraryopen accessacademic papers
annas-archive.li
21.3M/mo
#1.6K rank79/100 trust
huggingface.co
Live site data
We’re on a journey to advance and democratize artificial intelligence through open source and open science.
machine learningopen sourceAI models
huggingface.co
24.9M/mo
#1.8K rank84/100 trust
supabase.com
Live site data
Build production-grade applications with a Postgres database, Authentication, instant APIs, Realtime, Functions, Storage and Vector embeddings. Start for free.
databasebackend-as-a-servicepostgres
supabase.com
18.6M/mo
#2.1K rank89/100 trust
sourceforge.net
Live site data
SourceForge is the complete software discovery platform. SourceForge is the largest B2B software review and comparison site in the world, and features the largest business software directory, as well as free & fast open source software downloads and development.
open sourcesoftware downloadsB2B software
sourceforge.net
21.2M/mo
#2.5K rank81/100 trust
mozilla.org
Live site data
We’re working to put control of the internet back in the hands of the people using it.
non-profitopen-sourceprivacy
mozilla.org
25.6M/mo
#2.7K rank84/100 trust
openstreetmap.org
Live site data
OpenStreetMap is a map of the world, created by people like you and free to use under an open license.
open sourcemappingcrowdsourcing
openstreetmap.org
8.1M/mo
#4.0K rank89/100 trust
firefox.com
Live site data
Get Firefox for Windows, Mac or Linux. Firefox is a free web browser backed by Mozilla, a non-profit dedicated to internet health and privacy.
web browserprivacyopen source
firefox.com
16.2M/mo
#5.2K rank84/100 trust
python.org
Live site data
The official home of the Python Programming Language
pythonprogramming languageopen source
python.org
11.3M/mo
#6.3K rank89/100 trust
docker.com
Live site data
Docker is a platform designed to help developers build, share, and run container applications. We handle the tedious setup, so you can focus on the code.
containersdevopsdeveloper-tools
docker.com
9.1M/mo
#6.6K rank81/100 trust
wp.com
Live site data
Create your WordPress website with built-in hosting, premium themes, and powerful tools. No technical setup required. Start building today—free plan available.
wordpresswebsite builderhosting
wp.com
11.2M/mo
#7.3K rank76/100 trust
wordpress.org
Live site data
Open source software which you can use to easily create a beautiful website, blog, or app.
WordPressCMSOpen Source
wordpress.org
9.1M/mo
#8.6K rank74/100 trust
arduino.cc
Live site data
Open-source electronic prototyping platform enabling users to create interactive electronic objects.
Arduinomicrocontrolleropen-source
arduino.cc
6.1M/mo
#11.3K rank74/100 trust
apache.org
Live site data
Welcome to The Apache Software Foundation | Apache Software Foundation
open sourcesoftware foundationnonprofit
apache.org
4.7M/mo
#11.4K rank76/100 trust
ubuntu.com
Live site data
Ubuntu is the modern, open source operating system on Linux for the enterprise server, desktop, cloud, and IoT.
open sourcelinuxoperating system
ubuntu.com
4.9M/mo
#12.6K rank79/100 trust
redhat.com
Live site data
Red Hat is the world’s leading provider of enterprise open source solutions, including high-performing Linux, cloud, container, and Kubernetes technologies.
open sourceenterprise softwareLinux
redhat.com
3.6M/mo
#14.8K rank79/100 trust
tailwindcss.com
Live site data
Tailwind CSS is a utility-first CSS framework for rapidly building modern websites without ever leaving your HTML.
css-frameworkweb-developmentfrontend
tailwindcss.com
4.0M/mo
#16.9K rank79/100 trust
anaconda.com
Live site data
Anaconda is the birthplace of Python data science. We are a movement of data scientists, data-driven enterprises, and open source communities.
PythonData ScienceMachine Learning
anaconda.com
2.5M/moPreviousNext Page
FAQ
Questions about Open Source
These pages should help visitors understand both the list itself and the next best navigation move.
What can I learn from the Open Source topic page?
Use this page to scan websites connected to Open Source, open the strongest candidates, and compare their detailed report modules before making a decision.
What is the difference between a topic page and a category page?
A topic page is more editorial and audience oriented. It is useful when you care about niche intent and content themes more than formal business classification.
How should I use topic pages in a research workflow?
Start with the topic, identify standout domains, then use the report modules to judge authority, monetization posture, and technical sophistication.