After months of development and testing, JAVSubs is officially live. You can download it right now for Windows and Linux.
JAVSubs is an AI-powered subtitle generator that translates Japanese audio into English subtitles — and it runs entirely on your computer. No uploads, no cloud processing, no accounts. Your files never leave your machine.
Drop a Japanese video into JAVSubs, and it will:
The entire process happens locally. No internet connection required after the initial setup.
With an NVIDIA GPU (8GB+ free VRAM), expect about 5–10 minutes for a 2-hour video. The app uses both Vulkan and CUDA acceleration to get the most out of your hardware.
Without a dedicated GPU or on CPU only, processing takes around 20–60 minutes depending on your system. You can queue multiple videos and walk away — it handles everything in the background.
This was a core design decision from day one. JAVSubs processes everything locally because that's how it should be. Your videos are your business. There's no telemetry, no analytics inside the app, no phone-home behavior. It works completely offline after the first launch.
No Python, no command line, no technical setup. Download the installer, run it, and you're ready to go. The AI models download automatically on first launch.
$25 — one-time purchase. No subscription, no per-video fees, no usage limits. Buy it once, use it forever. Process as many videos as you want.
We accept credit cards via Stripe and Bitcoin. The first 30 licenses are available at this introductory price.
Head to javsubs.app to purchase and download. You'll get your license key and download link instantly after payment — we also send everything to your email.
If you run into any issues, reach out at support@javsubs.app. We're here to help.
AI-powered Japanese to English subtitles. 100% offline. One-time purchase.
Buy Now — $25