A long video without chapters loses viewers to blind scrubbing. The chapter editor drops markers against the video in the browser, previews the segmented progress bar live, and exports WebVTT/JSON chapters — one ZWPlayer option turns them into bar segments, a chapter panel, and jump navigation. Four design principles included.
Series, courses, music queues — past a few items, hand-writing JSON stops scaling. The playlist editor offers bulk import, drag-and-drop ordering, and grouping; every entry can carry subtitles, chapters, thumbnails, and multi-bitrate sources, exporting standard ZWMAP playlist JSON that ZWPlayer wires in one line. Pair with ZWScan to turn a whole media library into a playlist.
YouTube/Bilibili-style hover previews on the progress bar are one sprite sheet plus a time-mapping JSON. The online generator parses video locally, samples frames at your interval, stitches the sheet, and exports ZWMAP thumbnail JSON — hand it to ZWPlayer and hover previews work. How it works, the knobs, and integration.
SubEdit Online is a browser-native subtitle editor: local video loading with instant open, waveform-based timing, AI speech recognition that generates timed subtitles in one pass, multilingual AI translation, and SRT/VTT/JSON import/export. Videos are parsed in the browser only — never uploaded. Basic editing needs no backend.
ZWPlayer has a hundred-plus options; writing initialization from scratch invites mistakes. The code generator puts a form on the left — source, subtitles, watermarks, VR, playlist, hotkeys — and generates complete HTML integration code live on the right. Copy and ship. Usage plus the sample-to-production workflow.
MPDGrab is a free CLI downloader for DASH streams. Given an .mpd manifest URL it mirrors every representation, audio track and segment into a self-contained folder, rewriting the manifest for fully offline playback. Win/Mac/Linux.
ZWScan scans a local media folder and auto-generates a ZWMAP playlist JSON — grouping videos by subdirectory, auto-matching subtitles, chapters, thumbnails, and audio tracks. One binary, no runtime. Win/Mac/Linux.
ZWCorsProxy is a local CORS reverse proxy. Prefix any cross-origin video URL with your localhost and play it in the browser — mp4 transparent passthrough, m3u8 auto-rewrite. Win/Mac/Linux.
ZWServe is a zero-config local CORS web server. A single binary that serves files over HTTP/HTTPS with permissive CORS and no caching. Win/Mac/Linux.
M3U8Grab is a free CLI downloader for HLS/m3u8 streams. It grabs all bitrates, audio, subtitles, and keys for fully offline playback. Win/Mac/Linux.
StitchImage is a browser-based image stitching tool that supports horizontal/vertical stitching, gap control, background color, output scaling, and more. Images are never uploaded to any server — just open and use.
Google Gemini 3 Pro Image (Nano Banana 2) preview is live! I tested its iterative editing and watermark-free generation capabilities firsthand. Comparing it with Photoshop and Jimeng, I demonstrate how to generate a futuristic ZWPlayer promotional image using simple dialogue. Free trial currently available.
