Open source. Open possibilities.

ArchPlayer is a lightweight, single-file HTML local media viewer that allows users to play video files directly in a web browser without installation.

bili-subtitle is a zero-config, auto-fallback userscript for extracting CC and AI subtitles from Bilibili. It offers precise diagnostics and multiple export formats without downloading videos or uploading data.

A Chrome browser extension that translates YouTube English subtitles into a target language, supporting bilingual display, full-text comparison, and SRT file export.

A Python tool for localizing authorized YouTube videos with Chinese subtitles and assisting in Bilibili uploads, supporting speech transcription, OCR, LLM translation, and hard-subtitle rendering.

HTW Media Client is an open-source Electron-based desktop client for the HTW Media Platform V2 API, providing a one-stop workbench for topic selection, transcription, media insights, content creation, smart editing, and multi-platform publishing.

A Python library that retrieves YouTube video transcripts and subtitles without requiring an API key or headless browser. Supports multiple languages, translation, and output formatting.

A lightweight API built with Elysia and FFmpeg to capture screenshots and generate GIFs from anime episode HLS links.

A subtitle format conversion tool supporting bidirectional conversion between SRT, ASS, VTT and more, featuring a built-in preview player and batch processing with 100% local execution for privacy.

A browser extension for Google Chrome and Mozilla Firefox that provides real-time, dual-language subtitle translation for YouTube videos.

VideoCaptioner is an LLM-based video subtitle processing tool covering speech recognition, subtitle optimization, translation, and video synthesis. It supports CLI and GUI, with free features like Bijian ASR and Bing/Google translation requiring no configuration.

A browser-based subtitle editor featuring speaker-specific lanes to streamline the process from transcription to correction and export.

LingoCue is a Windows English learning tool for Chinese users that provides word lookup, vocabulary lists, difficulty analysis, and AI dialogue via YouTube subtitles, supporting Chinese-English comparison and local media libraries.

A standalone Windows utility for searching and downloading synchronized subtitles using video fingerprinting and metadata matching.

bili_add_on is a command-line tool for overlaying Bilibili danmaku on videos. It supports automatic danmaku retrieval via video IDs or local XML files and provides hardware-accelerated encoding support.

An AI-powered automatic video editing tool using Whisper and Gemini that supports Thai and English, featuring key segment cutting and subtitling with 3-4x faster performance via GPU and Docker.

A native desktop app that scans a folder tree and lists every video without a matching subtitle, grouped by folder. Supports exclusion lists, sorting, file manager access, and saving reports. Configurable and cross-platform.

An AI subtitle translation and review triage engine that reduces costs by selecting only high-risk items for human review. It provides CLI tools for specification checks, translation, and transcription, using deterministic signals and back-translation to calculate risk scores.

A Bilibili video batch downloader implemented with requests, supporting multi-part downloads, subtitles, danmaku, and cover grabbing, featuring a GUI and AI corpus transcription.

A cross-platform subtitle renaming tool for series, featuring preview, conflict detection, rollback, and undo capabilities, optimized for players like Infuse.

A Bilibili subtitle extraction tool that supports downloading existing subtitles or using AI speech-to-text for videos without them. It outputs SRT/TXT/JSON formats and is implemented using the Python standard library.