Open Source Video Translation ToolpyVideoTrans

One-click Subtitle Generation + Subtitle Translation + Voice-over Creation + Synthesis = New Video with Subtitles and Voice-over

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Automate the Entire Video Translation Workflow

Transcribes video into subtitles in the original language, then translates the subtitles into the target language, creates a voice-over based on the translated subtitles, and finally embeds the voice-over and subtitles into the video, generating a new video with target language subtitles and voice-over, all automatically.

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Speech-to-Text / Text-to-Speech / Subtitle Translation

In addition to video translation, it also integrates speech recognition / text-to-speech / subtitle translation, all supporting local offline model solutions and third-party API access solutions.

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No Login, No Registration, No Software Fees

The software is free to download and use. If you use a third-party API, you only need to pay for the third-party API, and you don't need to pay for the software.

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Free + Open Source

The code is open source on GitHub, free with no function restrictions, and well-documented.

Video Translation Tool pyVideoTrans Interface

pyVideoTrans: An open-source software that translates videos from one language to another in terms of pronunciation and subtitles.

Video Translation: It can recognize the speech in the original video and automatically generate subtitles, then translate them into target language subtitles, then create audio voice-over for the target language subtitles, and then merge the voice-over audio, target language subtitles with the original video to generate a new video, thereby realizing video translation.
Speech Recognition Transcription: Supports batch transcription of audio or video files into SRT subtitles.
SRT Subtitle Translation: Can translate SRT subtitles into other languages while maintaining the original format and timestamps.
Voice-over for Subtitles or Text: Generate voice-over for SRT subtitles or text, supporting multiple voice-over channels.
In addition, there are auxiliary functions such as audio and video subtitle merging, batch video and audio merging, batch video and subtitle merging, and human voice and background sound separation.

Latest Blog Posts

Gemini + VAD Hybrid Architecture Solving Small Language Challenges with Whisper, Generating Accurate SRT Subtitles
Open-source speech recognition models like Whisper are known for their impressive performance with English. However, when venturing outside of the English comfort zone, their performance in other languages dr...
2025/7/14 22:33:00
Whisper's Sentence Segmentation Not Good Enough? Use AI Large Language Models to Re-Segment for Perfect Subtitles
OpenAI's Whisper model is undoubtedly revolutionary in the field of speech recognition, converting audio to text with remarkable accuracy. However, for long videos or complex dialogues, its automatic sentence s...
2025/7/13 22:33:00
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FFmpeg Hardware Acceleration A Case of Command Failure (Impossible to convert between the formats supported by the filter)
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Say Goodbye to CUDA Configuration Nightmares A Classic "CUDA Version Mismatch" Case Study
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From Zero to One Building a Chatterbox-TTS API Service
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From "Functional" to "Fantastic" The Art of Writing Industrial-Grade Python Startup Scripts in Batch
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Which FFmpeg Version Should I Download on Windows? How to Set Up Environment Variables
> FFmpeg official download address: https://www.gyan.dev/ffmpeg/builds There are several versions on the download page, as shown below. What are the differences between them, and which one should I download? De...
2025/7/3 18:33:00

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