Translate Any Text on Screen, 100% Offline.
Secure, Private, and High-Precision On-Device Translation.
SubAIPlayer is a Mac-exclusive screen OCR & AI translation tool that operates without sending any data to external servers. From real-time recognition of video subtitles and in-scene text to batch translation of scanned PDFs and vertical documents, enjoy total security and freedom anywhere.
3 Pillars of Offline Translation
Designed for video immersion, academic research, and privacy-conscious workflows.
Media Translation (Screen OCR)
Overlay a transparent window over YouTube or local videos to capture and translate on-screen text in real time.
File Batch Translation (PDFs & Scans)
Drag and drop scanned PDFs, images, videos, or text files for batch OCR processing and AI translation.
100% On-Device Processing
Zero communication with external cloud servers. Harnesses Mac hardware acceleration for private, local execution.
Comprehensive Language & Workflow Features
Clipboard Monitor
Copy text from any web browser or application to view instant translations directly in the menu bar.
Dual-Subtitle Player
Display original and translated subtitles simultaneously side-by-side for accelerated language acquisition and shadowing.
Apple Silicon Optimized
Engineered for Apple Silicon Neural Engine & GPU, delivering rapid OCR analysis with low power consumption.
Completely Standalone
No recurring cloud subscriptions, API keys, or user registrations needed after initial model installation.
Smart Layout OCR Analysis
Accurately parses multi-column articles, footnotes, and complex document tables in natural reading order.
Strict Zero-Log Policy
Captured screen buffers and translated texts are never logged, stored persistently, or transmitted off-device.
System Requirements & Specifications
Need Assistance?
Check out our troubleshooting guides, tips, and FAQ on the support page.