Whisper4aegisub is an easy-to-use, fully local AI transcription tool based on OpenAI Whisper. It runs directly inside Aegisub, turning audio or video files into accurate subtitles in just a few clicks — no Python, no Docker, no command line. All processing happens locally on your machine, with no uploads, tracking, or subscriptions. Ideal for YouTubers, educators, journalists, agencies, and anyone who wants private, high-quality speech-to-text transcriptions.

I built this because I was frustrated with how hard local AI transcription tools are for non-technical users. Whisper gives amazing results, but most solutions require knowledge of Python, Docker, CLI, or uploading files to the cloud. I wanted something truly plug & play. This runs fully locally, uses OpenAI Whisper, and works directly inside Aegisub — install → transcribe → edit subtitles. It’s especially useful for: - YouTubers & creators (SEO, captions, Shorts) - Privacy-sensitive workflows - Non-English languages You can use it for free for short clips (up to 60s), which covers YouTube Shorts, TikTok and Reels. There’s also a free 7-day trial with no limitations. Happy to answer questions, and I’d love feedback from people using Whisper today.

Whisper for Aegisub

Easy, fully local AI transcription with OpenAI Whisper

Easy, fully local AI transcription with OpenAI Whisper