Marker
Marker: An open-source converter for turning mixed document files into structured output. Ranked #19 of 60 in PDF Data Extraction Software by our editors (7.6/10); pricing: Free plan; best for developers converting mixed files to structured output.
At a glance
- Editor score7.6 / 10
- PricingFree plan
- Best forDevelopers converting mixed files to structured output
- Free planYes
- Paid fromFree
- Scanned-PDF OCRYes
- Facts checked23 Oct 2026
Where it wins
- Converts PDFs and several office, web, and ebook formats.
- Offers OCR, table reconstruction, image extraction, and artifact removal.
- Supports folder-based batch processing and optional LLM formatting.
Where it doesn't
- Complex layouts and forms may not render reliably.
- Local operation requires a suitable runtime environment.
- Model-weight licensing restricts some commercial uses.
Our verdict on Marker
Marker is an open-source document conversion tool for developers and teams building document-processing workflows. It accepts PDFs, images, PPTX, DOCX, XLSX, HTML, and EPUB, then produces Markdown, JSON, HTML, or chunks. The breadth makes it relevant when a pipeline needs to handle mixed source files rather than PDFs alone, while its self-hosted, locally run approach suits teams that want to work within their own environment.
Its feature depth centers on turning varied page content into usable structure. Marker can OCR scanned pages or garbled text, with an option to disable OCR; it reconstructs tables and includes a table-only converter. It can also extract images and remove headers, footers, and other artifacts. Multiple files can be processed from a folder with configurable workers. Optional LLM support can improve output quality and formatting, with integrations including Gemini, Claude, OpenAI-compatible models, Azure, Vertex, OpenRouter, and Ollama. This combination favors developers assembling flexible extraction workflows; teams needing reliable rendering of complex layouts or forms should consider alternatives.
Marker is open source and has a free plan, but the product itself is locally run rather than a Datalab hosted plan. Datalab separately sells hosted and enterprise services, including APIs powered by its other models, so those offerings should not be treated as Marker pricing. The repository also notes restrictions on model-weight licensing for some commercial uses, a point teams should review before adopting it in commercial workflows. Marker fits users comfortable with local deployment and community support; buyers seeking a vendor-backed hosted service or predictable handling of complex forms may prefer another option.
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Marker pricing
Marker fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Free |
| Scanned-PDF OCR | Yes |
| Table extraction | Yes |
| Form and field extraction | Not verified |
| API access | Yes |
| Max pages per file | Not verified |
| Deployment | Self_hosted |
| Batch processing | Yes |
| Deployment | Self-hosted |
| Platforms | Linux, macOS |
| Support | Community |
| Built for | Solo, Small business, Mid-market, Enterprise (editorial estimate) |
| Integrations | 7 integrations: Gemini, Claude, OpenAI-compatible models, Azure, Vertex, OpenRouter … |
| Pricing | Free plan (source) |
| Website | github.com |
| Facts checked | 23 Oct 2026 |
Marker integrations
Marker lists 7 integrations on its own site.
- Gemini
- Claude
- OpenAI-compatible models
- Azure
- Vertex
- OpenRouter
- Ollama
Alternatives to Marker
- ABBYY VantageAn enterprise document-processing platform with AI extraction, review, routing, and workflow integrations.9.4
- UiPath Document UnderstandingA workflow-oriented option for teams that need document extraction with human review and routing.9.3
- Adobe PDF Services APIA broad cloud API for extracting PDF content and automating document workflows.9.2
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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