Captionist

Project Overview

Captionist generates and edits captions for video content in more than 170 languages, a genuinely large scope for a consumer app, and the feature that defines it. Multi-language support at that scale isn't a settings toggle. It affects text rendering, character sets, right-to-left layouts, and how the interface behaves when a language's words are three times longer than English.

Core Features

• Caption generation across more than 170 languages.
• Caption editing and timing adjustment for precise sync with video.
• Export built for use across multiple platforms.
• An interface engineered to handle varied scripts and text directions, including right-to-left languages.

Technical Highlights

• Interface built to render varied character sets correctly across 170+ languages.
• Layout engineering that accounts for right-to-left scripts and variable text length between languages.
• Caption timing and editing built for frame-accurate sync with video content.
• Export pipeline built for compatibility across common video platforms.

Project Impact

Captionist gives creators a caption tool that actually works at global scale, not just in English. By solving the harder problem of multi-language text rendering, variable word length and script direction at the interface level, the app supports a genuinely international user base rather than treating language support as an afterthought.