Say Goodbye to Jianying Membership? Open-Source Video Subtitle Generator, Offline Local GPU Acceleration, One-Click Video Translation and Subtitle Generation — SmartSub



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🕒Last updated: 06/23/2026
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SmartSub Open-Source Video Subtitle Generator

Software Introduction

SmartSub is a powerful audio/video subtitle generation and multi-language translation tool that supports multiple formats, local processing, and provides rich customization options. I tested it on and off for a few days and personally confirmed it works; it's quite convenient for those who repost foreign videos.

A replacement for Jianying's subtitle generation feature, one-click video subtitle generation

One-click operation, can choose different high-precision models to generate

Free and open source, supports GPU acceleration, also works without GPU

Speech recognition to subtitles requires your own API; without an API, local subtitle generation is still possible

Supports timeline calibration

Supported Devices

PC software

SmartSub Open-Source Video Subtitle Generator

Supporting Study Materials

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