AnyDoc is the stronger fit for a browser-native PDF and Office conversion core: it ships first-party WebAssembly, accepts file bytes directly, exposes a structured document model, and reports explicit resource errors. MarkItDown is the stronger fit for Python automation, broader format coverage, plugins, CLI workflows, Docker, and MCP. The right choice depends on the runtime and the files you need to support.
Feature-by-feature comparison
Last fact-checked August 17, 2026
| What matters | Firecrawl AnyDoc | Microsoft MarkItDown |
|---|---|---|
| Architecture | A Rust document-parsing library with Node.js, Python, and first-party browser WebAssembly bindings. | A Python library and command-line utility with Docker, plugin, and MCP integration paths. |
| Browser integration | The WASM package accepts bytes directly and is designed to run in a Web Worker because conversion calls are synchronous. | Python-first rather than browser-native. Running it fully in a browser requires a Python runtime such as Pyodide and compatible dependencies. |
| Format coverage | Focuses on document, presentation, spreadsheet, OpenDocument, ebook, CSV, and PDF formats. | Covers a broader input catalog, including Office documents, PDF, HTML, structured text, images, audio, archives, EPUB, and URLs. |
| Output model | Can return Markdown directly or a structured document model with blocks, notes, and embedded asset bytes. | Returns conversion results centered on Markdown text, with format-specific metadata and extensibility through Python. |
| Embedded images | Its document model exposes Office assets, but direct Markdown output renders embedded images as alt text without relative asset links. | Image handling depends on the converter and integration; applications can add format-specific extraction in Python. |
| PDF and OCR | Handles text-based PDFs locally. Image-only PDFs are unsupported, and mixed text-and-scan documents still require completeness review. | Provides local PDF extraction, with optional cloud-assisted routes available for richer OCR and layout processing. |
| Failure and safety model | Exposes typed conversion errors, including a resourceLimit code for fixed decompression, nesting, and node-count safeguards. | Uses ordinary Python exceptions; its public API does not document an equivalent typed resource-limit contract. |
| Extensibility | Best extended by contributing parsers or building on its Rust document model and language bindings. | Offers a documented plugin model and is straightforward to compose inside Python applications and agent tooling. |
| License | MIT-licensed open-source software. | MIT-licensed open-source software. |
Choose Firecrawl AnyDoc when
- — You need a first-party WebAssembly package for local browser conversion.
- — Your core inputs are PDF, Office, OpenDocument, or ebook formats.
- — You want both direct Markdown and access to a structured document model.
- — You need explicit parser error codes and fixed resource safeguards.
Choose Microsoft MarkItDown when
- — You want Python or command-line automation with direct control over dependencies.
- — You need the broader input catalog, plugin model, Docker path, or MCP server.
- — You want to compose conversion with an existing Python application or agent toolchain.
- — You are comfortable configuring optional services when richer OCR or layout extraction is required.
Why GetMarkdown uses both engines
Read the engineering rationale for using AnyDoc as the primary PDF and Office parser while retaining MarkItDown as a guarded compatibility path.
Sources and comparison policy
Competitor information comes from the official sources below and may change. Product names belong to their respective owners. This page aims to explain fit, not declare one tool universally better.