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Open SourceWebsite
Explore websites about Open Source, their features, categories, alternatives and technical profiles.
Currently listed: 984 websites
Open SourceRelated websites
Total: 984 websites · Per page: 20
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OpenTierBoy
opentierboy.com
OpenTierBoy: The free, open-source tier list creator that helps you craft, rank and share your passion! No ads, no logins, no sign-ups. Create and instantly share your tier lists simply by copying the URL to your tier list.
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OpenTogetherTube
opentogethertube.com
Watch videos together online with your friends. Real-time synchronized playback. Optional voting system. Dark theme. No sign up required. All Open Source.
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OpenTTD
openttd.org
An open source simulator based on the classic game Transport Tycoon Deluxe. It attempts to mimic the original game as closely as possible while extending it with new features.
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OPNsense
opnsense.org
We’ve made digital security accessible to everyone. With our free OPNsense® platform, you get all the features of expensive commercial firewalls and more. Enjoy open and verifiable sources in a product developed with and for a large user community.
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OrcaSlicer
orcaslicer.com
Official OrcaSlicer website. Download the free, open‑source 3D printing slicer for Windows, macOS, and Linux. Advanced calibration, smart supports, and more.
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Organic Maps
organicmaps.app
Free, open-source, fast, privacy-focused, detailed offline maps for travelers, tourists, drivers, hikers and cyclists created by MapsWithMe/Maps.Me app founders
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Ory
ory.com
Ory delivers identity and access management (IAM) for applications, enterprises, and AI agents. Cloud-native, API-first, and self-hostable.
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FREE shopping cart and open source eCommerce platform - Start selling on...
oscommerce.com
FREE Shopping cart osCommerce to start selling online. Accelerate your business endlessly by adding apps and custom development. Open source eCommerce platform.
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OSGeo
osgeo.org
OSGeo, the OpenSource for GeoSpatial Fosters global adoption of open geospatial technology by being an inclusive software foundation.
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OSIRIS — Open Source Intelligence Platform | Live Flight Tracking, CCTV, OSINT Tools & More
osirisai.live
The open-source Palantir alternative. Track live aircraft, satellites, and worldwide CCTV cameras on a 3D globe. Run Nmap scans, DNS lookups, WHOIS queries, SSL cert analysis & threat intelligence — all from your browser. 20+ data sources including live earthquake, wildfire, cyber threat and conflict feeds, plus mapped reference data such as nuclear facilities. Free & open source.
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ossia
ossia.io
Open Software System for Interactive Applications - home of ossia score, a free, open-source, cross-platform intermedia sequencer for precise and flexible scripting of interactive scenarios.
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OSSInsight
ossinsight.io
Track AI agent frameworks, LLM tools, MCP servers & 10B+ GitHub events. Compare repos, discover trending projects, and get real-time open source intelligence. Free & open source.
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OWASP Foundation
owasp.org
OWASP is the nonprofit behind the Top 10, ASVS, ZAP, and hundreds more free application security projects. Explore our tools, standards, local chapters, global events, and news from a community of 250+ chapters worldwide.
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Owncast
owncast.online
Owncast is a free and open source live video and web chat server for use with existing broadcasting software. Point your live stream at a Owncast server you personally control and regain ownership over your content.
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ownCloud
owncloud.com
ownCloud, your file platform. The most essential business tool for enterprise-grade file sync and share.
Practical guides
- What Are Open-Source UI Element Libraries and How Do They Differ From UI Frameworks?
- An open-source UI element library is a collection of individual, ready-made interface pieces—buttons, cards, inputs, toggles, loaders—that you copy i…