Formula Bridge
No payment needed

Choose the right recognition mode

Lite is free with unlimited use; use Pro's daily free quota for complex cases.

Free to use

Lite recognition

Fast, reliable recognition for clear printed formulas.

¥0
Unlimited free use
  • Clear screenshots of printed formulas
  • Formulas in PDFs, papers, and webpages
  • Common single-line, multiline, and array formulas
  • No payment or setup required
Free to use

Pro recognition

For occasional high-complexity image and formula recognition.

Usage limits apply
Daily free quota
  • Mixed text-and-formula or dense screenshots
  • Complex formulas and nested structures
  • Complex layouts, blur, or low-contrast images
  • Stronger recognition for complex scenes

How to choose

Choose based on image clarity and the complexity around the formula.

LiteAvailable now
Image source
Papers, textbooks, PDFs, and webpages
Image quality
Clean background and sharp edges
Content type
Common single-line, multiline, and array formulas
Status
Free with unlimited use
ProAvailable now
Image source
Complex screenshots and specialized layouts
Image quality
Blur, skew, shadows, or complex backgrounds
Content type
Mixed, dense, or complex layouts
Status
Daily free recognition quota

Pricing details

Lite is free with unlimited use; Pro includes a daily free quota with no payment required.

No payment needed now