This repository is a collection of sample applications demonstrating the OpenTok.js (Vonage Video API) library for building real-time video communication experiences in the browser. It includes over a dozen independent examples covering basic video chat, session archiving, signaling for text chat, custom video/audio sources (canvas, video file, stereo audio), media transformers (audio low-pass filter, video threshold filter, background blur, background image replacement, face-tracking zoom), live captions, end-to-end media encryption, and device management. Each sample is a self-contained static web app with its own HTML, CSS, JavaScript, and configuration file, relying on the OpenTok.js CDN and a backend server for session and token generation. The code is straightforward and educational, intended as a learning resource for developers integrating the Vonage Video API. However, the repository is explicitly deprecated in favor of the newer 'vonage-video-api-web-samples' repository, and many samples use older patterns (e.g., global script tags, no module bundling) that are not representative of modern production practices. Some components, such as the media processor worker pattern and the image filter module, demonstrate reusable patterns for real-time media processing.