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ReelSync

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What ReelSync is

ReelSync is a free, open-source web app for sharing video streams with another person in real time. A host creates a room and sends its link so a partner can join directly. Media can come from an uploaded file, a shared screen, or a video link. The app offers Peer-to-Peer and Same-Origin modes and uses WebRTC and other web technologies. No registration is required; the site creates a temporary session. ReelSync says media travels through WebRTC and that it stores no data on a server, with no server-side media storage, transcoding, or recording. In peer-to-peer mode, streams connect directly when possible, although TURN can relay encrypted traffic. It runs in modern browsers and describes desktop as the best experience. Mobile users can usually join as viewers, but screen sharing is usually unsupported. Safari limitations may make peer-to-peer capture or streaming unavailable or unstable, while Firefox screen sharing usually cannot capture system audio. It can also be self-hosted as a static site.

Who it suits

ReelSync suits people who want browser-based shared viewing without registration or server-side media storage. It is also suitable for users who prefer open-source software or self-hosting.

What it does well

  • Free and GPL-3.0 licensed
  • No registration required
  • Supports uploads, screen sharing, and video links
  • Offers peer-to-peer and same-origin modes
  • Can be self-hosted as a static site

What to know first

  • Mobile screen sharing is usually unsupported
  • Safari capture or streaming may be unstable
  • Firefox usually cannot capture system audio
  • No recording or video editing

Limits

Mobile users can usually join as viewers, but screen sharing is generally unsupported. Safari may have unstable or unavailable peer-to-peer capture, Firefox usually lacks system-audio capture for screen sharing, and high latency in Same-Origin mode can cause frequent synchronization.

Getting started

  1. Open the ReelSync web app in a modern browser
  2. Create a room as the host
  3. Choose an uploaded file, shared screen, or video link
  4. Share the room link with your partner
  5. Select Peer-to-Peer or Same-Origin mode
  6. Self-host the static site with Nginx, Caddy, GitHub Pages, or Cloudflare Pages

Verdict

ReelSync focuses on real-time shared viewing through a browser, with temporary sessions and no server media storage. Desktop browsers offer the clearest fit, while mobile and browser-specific limits affect some uses.

Questions

Is ReelSync free?

Yes. It is free and open source under the GPL-3.0 license.

Do users need to register?

No. ReelSync creates a temporary session without registration.

Which platforms does ReelSync support?

It is a web app for modern browsers, with desktop described as the best experience. It can also be self-hosted as a static site.

Does ReelSync store media?

The project says no data is stored on a server and provides no server-side media storage, transcoding, or recording.

What media can a host share?

A host can upload a file, share a screen, or provide a video link.

Can ReelSync be self-hosted?

Yes. Static-site hosting examples include Nginx, Caddy, GitHub Pages, and Cloudflare Pages.

Facts from ReelSync's own pages

Browser access
The project runs in modern browsers and describes desktop as its best experience. · github.com, 10 Oct 2026
Connection security
In peer-to-peer mode, streams connect directly when possible; TURN may relay encrypted traffic, and the project advises choosing ICE/TURN and signaling services carefully. · github.com, 10 Oct 2026
Data storage
The site states that no data is stored on any server. · reel-sync.app, 9 Oct 2026
Firefox compatibility
The project says Firefox screen sharing usually cannot capture system audio because of browser limitations. · github.com, 10 Oct 2026
Join rooms
A host can create a room and share its link so visitors can join directly. · github.com, 10 Oct 2026
Maker credit
The site credits 小翁同学 as its maker. · reel-sync.app, 9 Oct 2026
Media sources
It supports local video files and screen sharing in peer-to-peer mode, and video URLs in same-origin mode. · github.com, 10 Oct 2026
Mobile limits
Mobile users can usually join as viewers, but screen sharing is usually unsupported. · github.com, 10 Oct 2026
Modes
The site offers Peer-to-Peer and Same-Origin modes. · reel-sync.app, 9 Oct 2026
Network limits
In same-origin mode, higher network latency may cause frequent forced synchronization; the project advises setting the maximum acceptable delay to at least one second when network conditions are poor. · github.com, 10 Oct 2026
No registration
The site says no registration is required and a temporary session is created for the user. · reel-sync.app, 9 Oct 2026
Open source
The project is released under the GPL-3.0 license. · github.com, 10 Oct 2026
Platform availability
The opened site is a web app and displays Linux with Chrome as its current environment. · reel-sync.app, 9 Oct 2026
Privacy
The project says media is sent through WebRTC and it does not implement server-side media storage, transcoding, or recording. · github.com, 10 Oct 2026
Purpose
ReelSync is a tool for watching videos in sync or sharing a screen with others, with no signup required. · github.com, 10 Oct 2026
Room sharing
A host can create a room and share its link with a partner. · reel-sync.app, 9 Oct 2026
Safari compatibility
The project says Safari API limitations may make peer-to-peer capture or streaming unavailable or unstable. · github.com, 10 Oct 2026
Self-hosting
The project can be self-hosted as a static site, with Nginx, Caddy, GitHub Pages, and Cloudflare Pages listed as examples. · github.com, 10 Oct 2026
Source code
The site links to its source code on GitHub. · reel-sync.app, 9 Oct 2026
Supported technology
The site says it is powered by WebRTC and other web technologies. · reel-sync.app, 9 Oct 2026

Where ReelSync stands on Freedom251

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