

Video & Audio
Grabcube helps you download videos, convert speech to text, translate subtitles into multiple languages, and play them — perfect for content creators, learners, and professionals.
Support 1000+ sites
Grabcube currently supports over 1,000 different sites (including YouTube, Bilibili, Vimeo, Xiaohongshu, etc.) and the number is rapidly growing.

Universal Downloader
Grabcube is a powerful tool that allows you to download videos from the internet and it's totally free with no limits.

Unlimited Free Downloads
Grabcube supports downloading videos and audio from over 1,000+ mainstream platforms including YouTube, Bilibili, Vimeo, Xiaohongshu, etc., supporting multiple formats such as MP4, MP3, FLV, WebM. No download limits, no video quality restrictions, no ad interference, completely free to use. All downloads are executed locally, we do not collect or view any content or data you download, ensuring your privacy and security.
Audio Download
In addition to video download functionality, we also provide professional audio download services, supporting mainstream audio platforms such as SoundCloud, QQ Music, etc. You can download audio files separately as needed, and freely choose audio formats (such as MP3, WAV, M4A) and quality parameters to meet the usage requirements of different scenarios.
Subtitle download
Our platform enables seamless subtitle downloads from popular platforms like YouTube and Bilibili. With flexible language options and multiple subtitle formats, you can easily customize your video viewing experience.

AI Transcription
Experience Grabcube's high-precision AI speech-to-text technology, delivering over 95% accuracy when converting audio content to text for enhanced video accessibility and content understanding.
AI Speech-to-Text Conversion
When your downloaded videos and audio lack subtitles and you need deep content understanding, Grabcube intelligently transcribes audio content to text. Supporting multiple languages and formats with transcription accuracy exceeding 95% for professional content creators and learners.

Multi-Model Speech Recognition
We utilize Whisper models for audio-to-text transcription with over 95% accuracy. For Chinese, Japanese, and Korean content, we employ specialized models to ensure optimal transcription precision and language-specific optimization.
Accurate Sentence Segmentation
We use advanced AI models to accurately segment audio content into sentences, ensuring precise transcription and translation. Future updates will include enhanced speech recognition capabilities for improved content processing.

Subtitle Editing & AI Translation
Grabcube supports local subtitle editing and AI translation, allowing you to customize your video viewing experience.
Subtitle Editor
You can edit the transcribed subtitles or open local subtitle files for editing. The edited subtitles can be exported and used in other video players or editing software.
Subtitle Translator
You can accurately translate subtitle files. The translated subtitles can be proofread in real-time, and with the dual-language player, you can better understand audio-visual content.
Various AI engines
We provide various mainstream AI translation engines to help you better translate sentences accurately, support multiple languages, and you can use your own key.
Continuous Evolution
Grabcube is constantly evolving, with ongoing development of new features and improvements to user experience.
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Text-to-Speech
Coming soon: Text-to-speech functionality with multiple advanced speech synthesis models, supporting English, Chinese, Japanese, Korean and other languages, providing users with natural and smooth voice output experience.
Co-Creation Program
Grabcube's development direction is not solely determined by us, but more driven by user feedback. Every piece of feedback you provide could become Grabcube's next new feature.
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Find answers to your questions here
What is Grabcube?
Grabcube is a comprehensive audio-video tool that not only provides universal downloading capabilities but also supports AI speech-to-text conversion, AI subtitle translation, and AI subtitle editing. It's designed to assist both learners and video content creators in their work.
Is Grabcube's download feature free?
Yes, Grabcube's download feature is completely free! We know a lot of downloaders out there are full of ads, pop-ups, and annoying limits. But Grabcube is different—we’re committed to giving you a clean download experience: totally free, no restrictions, and no ads. Plus, all downloads happen locally, so your privacy is fully protected. We don’t make money off the download feature, because we believe a great product should be easy and stress-free to use. So go ahead and use Grabcube to download any videos you need, worry-free.
What platforms does Grabcube support?
Grabcube supports downloading videos and audio from over 1,000 major platforms, including YouTube, Bilibili, Vimeo, etc. The number of supported platforms is constantly growing.
How does Grabcube compare to other video downloaders?
Grabcube is not just a video downloader; it's a comprehensive audio-video tool that offers universal downloading capabilities, AI speech-to-text conversion, AI subtitle translation, and AI subtitle editing. It's designed to assist both learners and video content creators in their work.
Why develop Grabcube?
The market is flooded with video downloaders, both web-based and client-side applications. Many are plagued with intrusive ads or impose limitations requiring separate payments for download features. Our team brings unique insights and advantages in product interaction and design, aiming to develop a product that is not only aesthetically pleasing but truly meets user needs. With the power of AI, we aspire to assist learning users who rely on video content, while also supporting independent video creators in producing better content at lower costs. Our mission is to break down language barriers, enabling users worldwide to explore a broader world through video content.