OCR API is now Convert API
Convert API for STEM
Image & PDF digitizing software for STEM companies. Make creating and searching STEM content easy for your end users.
Battle-tested with deep functionality, including math equations, chemical diagrams, tables, and full PDF document conversion.
Compatible with industry standards like PDFs, LaTeX, Asciimath, MathML, Markdown, HTML, and SMILES (for chemistry).
![Example API request](images/ocr/ocr-hero-mobile.webp)
The most trusted, innovative, and limit-pushing OCR provider for STEM
Low latency
We are constantly pushing the boundaries of what is possible for image recognition while maintaining extremely low latencies.
Industry leader
Due to our exceptional accuracy and constant innovation, we are the most trusted brand for OCR among leaders in online math education.
Battle-tested reliability
We process over 10 million images every day. Our system is battle tested and reliable with 99.9%+ uptime.
Our API capabilities
Convert API is the industry leading computer vision solution for all things STEM. We excel at processing documents that are technical in nature and contain structured data.
![](images/ocr/ocr-api-text.png)
![](images/ocr/ocr-api-math.png)
![](images/ocr/ocr-api-chem.png)
![](images/ocr/ocr-api-code.png)
![](images/ocr/ocr-api-table.png)
All Convert API endpoints
- v3/strokes
Process strokes (digital ink)
- v3/batch
Process a batch of images
Industry leaders trust Mathpix
EdTech industry leaders trust Mathpix
FEATURES
Digitize entire PDFs
PDFs are first converted into Mathpix Markdown, from which they can be exported to DOCX / MS Word, LaTeX, and PDF. Text, diagrams, equations, and tables, are extracted from the PDF.
Original PDF
Extracted Mathpix Markdown
Rendered result
Supported image types
Use Convert API to very accurately convert images of simple and complicated printed and handwritten math, text, tables, and chemical diagrams.
We can also recognize all the world's most spoken languages like English, Vietnamese, Spanish, French, German, Hindi, Chinese, Japanese, Russian, Korean, Thai, and more.
![](images/ocr/bayes_theorem.webp)
![](images/ocr/matrix.webp)
![](images/ocr/handwritten.webp)
![](images/ocr/chem_eq.webp)
![](images/ocr/printed_tx.webp)
![](images/ocr/table.webp)
![](images/ocr/chinese.webp)
![](images/ocr/moleclues.webp)
![](images/ocr/note.webp)
![](images/ocr/curl-api.png)
You can find more example requests and types of images that you can process with Convert API in the User Guide.
Use cases for Convert API
Solving and Search Apps
With a long tail of advanced math, handwriting, and foreign language features, Convert API is the #1 choice for solving, tutoring, and search apps like Mathway, Doubtnut, and Toppr.
Grading and Assessment Platforms
Grading and assessment platforms like Gradescope use Convert API in their platforms to make it faster and easier for professors to distribute and grade homework and exams with AI.
Publishing, Accessibility and LMS
Publishing companies use Convert API to create digital STEM educational material like online math textbooks. Accessible education companies like Benetech use Mathpix to make math and science educational materials accessible to all students.
Bulk digitization (on‑prem available)
Our APIs are useful for bulk digitization of images or PDFs. We also offer an on-premise solution for bulk PDF processing for companies like London Stock Exchange, who need to securely process documents in their private cloud.
Ready to get started?
Pay As You Go plans require a credit or debit card payment on file.
ACH and bank transfers, POs, and other Enterprise payment options available on request.
Pay As You Go
Pay Monthly Based on Usage
Process strokes (without live updates) (v3/strokes)
Process equation image (v3/latex)*
Process batch (v3/batch)*
*Note that each image with more than 12 rows of text shall count as one PDF page and will be priced at the PDF pricing rate.