What is Marker?
An open-source tool that converts PDFs, documents and images into clean Markdown, HTML or JSON with high accuracy — preserving tables, headings, math and layout. Marker is a fast, free way to prepare documents for AI and RAG.
Marker sits in the pdf category and is listed in the AIverse AI tools directory, where it holds an editorial rating of 4.6 out of 5 based on its capabilities, usability, value for money and reliability. It is developed by Datalab, founded in 2023.
Marker features and use cases
People typically use Marker for PDF to Markdown/JSON, Preparing docs for RAG, Data extraction and Document digitization.
It is often associated with Open Source, PDF, Document Parsing and RAG. Developers can integrate Marker into their own products through its API.
Marker pricing
Marker is completely free (Free / Open Source). You can use it without a subscription.
As with any AI tool, the right plan depends on how heavily you use it. We recommend trying Marker before committing to a paid plan.
Is Marker worth it? Our bottom line
Overall, Marker is a strong choice in the pdf category for 2026. Its standout strengths include Accurate PDF-to-Markdown and Keeps tables, math and layout. Bear in mind For developers and GPU speeds it up. If it matches your workflow, Marker is well worth a try — especially since you can start for free.