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The Best Open-Source Alternatives to Zoom

Are you looking for a free or self-hosted alternative to Zoom? In 2026, avoiding expensive proprietary software subscriptions is easier than ever. The open-source community has built excellent privacy-friendly tools within the Video Conferencing ecosystem. Currently, there are 14 active replacements available, with Rocket.Chat being one of the most prominent selections.

Quick Comparison: Zoom vs. Open Source

Full comparison: Zoom vs. Rocket.Chat →
CriteriaZoomOSS Replacements
Pricing modelPaid / Monthly Fees100% Free / Self-Hosted
Data ControlThird-party ServersFull Ownership & Privacy
CustomizabilityRestricted by VendorUnlimited (Modify Codebase)

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Rocket.Chat

šŸ“ˆ Trending⭐ 10k+ Stars
NOASSERTION

Rocket.Chat is a highly customizable, scalable, and secure open-source platform for real-time communication and collaboration, allowing users to deploy and manage their private, enterprise-grade messaging environment. As a Zoom alternative, Rocket.Chat offers a feature-rich solution with end-to-end encryption and decentralized hosting options, ensuring the highest level of data integrity and user control.

⭐ 45,901 Stars
šŸ“ 13,760 Forks
ā— 0 Open Issues
šŸ·ļø NOASSERTION

Sylph

šŸ“ˆ Trending⭐ 10k+ Stars
Apache-2.0

Sylph, an open-source and highly customizable alternative to Zoom, offers real-time collaborative editing and online meeting capabilities, prioritizing user data security and transparency while eliminating reliance on proprietary services. By providing a flexible and extensible architecture, Sylph empowers developers to create tailored experiences, ensuring seamless integration and unparalleled control over sensitive data.

⭐ 18,481 Stars
šŸ“ 3,033 Forks
ā— 0 Open Issues
šŸ·ļø Apache-2.0
Apache-2.0

Matterbridge is an open-source, decentralized communication platform that enables seamless multiprotocol chat bridge integration, allowing users to connect with others across various messaging platforms, including Telegram, Mattermost, and Discord, without compromising on user data privacy. As a privacy-focused alternative to Zoom, Matterbridge offers a secure and adaptable solution for communities seeking to maintain control over their communication infrastructure.

⭐ 7,543 Stars
šŸ“ 725 Forks
ā— 0 Open Issues
šŸ·ļø Apache-2.0
AGPL-3.0

MIROTALKSFU is a highly secure, open-source video conferencing platform that allows for seamless communication and collaboration without compromising user data, offering a robust alternative to proprietary solutions like Zoom. By utilizing end-to-end encryption and a decentralized architecture, MIROTALKSFU maintains unparalleled privacy and security for users.

⭐ 3,034 Stars
šŸ“ 482 Forks
ā— 0 Open Issues
šŸ·ļø AGPL-3.0
GPL-3.0

Wire is a secure, open-source communication platform that offers end-to-end encrypted voice, video, and messaging capabilities, providing a private alternative to centralized conferencing solutions like Zoom. By leveraging decentralized infrastructure, Wire ensures that user communications remain encrypted and under the user's control, protecting data from unauthorized access and corporate surveillance.

⭐ 2,539 Stars
šŸ“ 179 Forks
ā— 0 Open Issues
šŸ·ļø GPL-3.0

Nextcloud Talk is a secure, open-source video conferencing solution that enables seamless communication and collaboration among team members while safeguarding user data through end-to-end encryption and decentralization, offering a compelling alternative to proprietary conferencing platforms like Zoom. This private, scalable solution empowers users to maintain control over their meetings and data, fostering a more transparent and trustworthy online community.

⭐ 2,172 Stars
šŸ“ 561 Forks
ā— 0 Open Issues
šŸ·ļø AGPL-3.0
Apache-2.0

OpenVidu is a comprehensive, open-source platform for building customizable and scalable video conferencing applications, offering users full control over their data and a flexible, server-side architecture that enables end-to-end encryption and privacy-friendly usage. By providing a robust alternative to proprietary solutions like Zoom, OpenVidu empowers developers to create secure, compliant, and highly customizable video conferencing services for their users.

⭐ 2,122 Stars
šŸ“ 479 Forks
ā— 0 Open Issues
šŸ·ļø Apache-2.0

This open-source project, CVPR2018_attention, is a computer vision-based video conference solution that leverages attention mechanisms for efficient and secure video processing, making it an ideal, privacy-friendly alternative to traditional video conferencing tools like Zoom. By utilizing this customizable, AI-powered alternative, users can enjoy end-to-end encrypted video meetings without compromising on security or features.

⭐ 179 Stars
šŸ“ 37 Forks
ā— 1 Open Issues
šŸ·ļø Unknown
GPL-3.0

"-L-" is a decentralized, open-source video conferencing platform that prioritizes user privacy, allowing individuals and teams to communicate securely without the need for corporate intermediaries, serving as a compelling alternative to proprietary solutions like Zoom. By leveraging cutting-edge WebRTC technology and end-to-end encryption, "-L-" fosters a private and trustworthy conferencing experience, safeguarding users' conversations and data from unauthorized access.

⭐ 148 Stars
šŸ“ 46 Forks
ā— 15 Open Issues
šŸ·ļø GPL-3.0
AGPL-3.0

Mconf is a free, open-source web conferencing platform allowing users to host and participate in secure, feature-rich video meetings without sacrificing data privacy – a compelling alternative to popular commercial solutions like Zoom. This flexible and customizable platform supports various integrations, making it an ideal choice for organizations seeking a transparent and secure communication solution.

⭐ 122 Stars
šŸ“ 84 Forks
ā— 0 Open Issues
šŸ·ļø AGPL-3.0

Meeting Transcriber enables users to transcribe audio and video recordings instantly, providing a seamless and efficient way to document meetings and conversations while preserving the security and anonymity of participants. By offering an open-source alternative to video conferencing behemoths, Meeting Transcriber empowers individuals and organizations to take control of their meeting record management with a private, flexible, and customizable solution.

⭐ 81 Stars
šŸ“ 21 Forks
ā— 12 Open Issues
šŸ·ļø MIT

WebCamControl is an open-source video conferencing tool that securely facilitates group meetings, lectures, and online events while respecting users' digital rights and data ownership. By providing a free, customizable, and ad-free alternative to proprietary solutions like Zoom, WebCamControl empowers users to maintain their online sovereignty and protect sensitive information in real-time video communications.

⭐ 53 Stars
šŸ“ 7 Forks
ā— 17 Open Issues
šŸ·ļø MIT
Open Source

BigBlueButton is an open-source web conferencing platform that enables seamless, interactive online meetings with video, audio, and screen sharing capabilities, ideal for educational and corporate settings. As a privacy-friendly alternative to Zoom, BigBlueButton offers a secure, customizable, and free solution for online collaboration, ensuring users maintain control over their data and online presence.

⭐ 0 Stars
šŸ“ 0 Forks
ā— 0 Open Issues
šŸ·ļø Open Source
Open Source

Jitsi Meet is a free, open-source video conferencing platform that enables secure and private online meetings with end-to-end encryption, audio and video conferencing, and screen sharing capabilities. A trustworthy and customizable alternative to Zoom, Jitsi Meet ensures users' personal and sensitive information remains protected in a world where online security and data integrity are crucial.

⭐ 0 Stars
šŸ“ 0 Forks
ā— 0 Open Issues
šŸ·ļø Open Source

Frequently Asked Questions

What is the best open source alternative to Zoom?

Based on GitHub community data (including star count and fork activity), Rocket.Chat stands out as one of the most reliable open-source replacements for Zoom today.

Why should I use an open-source replacement instead of Zoom?

Switching to an open-source solution ensures complete data sovereignty, protects your software environment from sudden vendor price hikes, and gives you full transparent control over your tech-stack metadata.

Top Open-Source Alternatives to Zoom in 2026