TexoOCR

A macOS menu bar app that captures formula screenshots and converts them to LaTeX instantly.

Features

• One-click capture — Press ⌘⇧L to screenshot a formula, LaTeX is copied to clipboard
• Import images — Drag or open image files for recognition
• 100% offline — All processing happens on-device via ONNX Runtime
• Editable history — Browse past results with image preview, rendered formula, and editable LaTeX source
• Multiple copy formats — Plain LaTeX, $...$, $$...$$, \(...\)
• Dark & light backgrounds — Auto-detects and inverts dark background images
• Bilingual — Chinese & English interface

Requirements

• macOS 14.0+
• Apple Silicon or Intel Mac

Build from Source

1. Clone this repository
2. Open TexoOCR.xcodeproj in Xcode 15+
3. Wait for Swift Package Manager to resolve dependencies (ONNX Runtime)
4. Build and run (⌘R)

Note: You need to grant Accessibility permission for the screen capture hotkey to work.

Download

Available on the Mac App Store (link coming soon).

Acknowledgments

• alephpi / Texo — Formula recognition model (LGPL, used with permission)
• Texo OCR Web — Online formula recognition service by the FormulaNet author
• ONNX Runtime — On-device inference engine (MIT)
• KaTeX — LaTeX rendering (MIT)

Privacy

TexoOCR does not collect, transmit, or store any personal data. All processing happens entirely on your device. Privacy Policy

License

App source code: MIT License

FormulaNet model weights: LGPL (granted by the author for this project)

Contact

zclk9000@me.com