MinerU Review 2026
High-quality document parser converting PDFs to Markdown
⭐ 82k+ stars
📜 Apache-2.0
🏷️ ai-tools
Overview
High-quality document parser converting PDFs to Markdown
Pros
- ✓ High-quality PDF to Markdown conversion achieving ~95% accuracy on structured PDFs (vs ~70% for PyPDF2)
- ✓ Preserves tables, formulas, and multi-column layouts that naive text extraction destroys
- ✓ Supports batch processing of hundreds of PDFs via CLI
Cons
- ✗ GPU inference requires 4GB+ VRAM for acceptable speed; CPU mode is ~5-10x slower
- ✗ Complex scanned PDFs with low-resolution images require OCR preprocessing for best results
- ✗ Output quality depends heavily on source PDF quality — poorly formatted PDFs still produce messy output
Key Features
- 📊Table & Formula Preservation: Extracts and reconstructs tables, mathematical formulas, and multi-column layouts as valid Markdown, maintaining structural integrity lost in standard PDF extraction.
- 📈95% Accuracy on Structured PDFs: Achieves ~95% conversion accuracy on structured documents versus ~70% for PyPDF2, reducing manual correction overhead for enterprise document workflows.
- ⚙️Batch CLI Processing: Process hundreds of PDFs simultaneously via command-line interface, enabling scalable document conversion pipelines without iterative single-file handling.
- 🎯Layout-Aware Markdown Output: Intelligently detects and preserves document structure including headers, footers, columns, and text hierarchy in semantically correct Markdown format.
Verdict
MinerU is a top-tier ai tools solution with 82k+ GitHub stars. Its large developer community and ongoing updates make it a recommended choice in 2026.
Frequently Asked Questions
What is MinerU?
MinerU is an AI tool in the ai tools space with 82k+ GitHub stars. High-quality document parser converting PDFs to Markdown.
Is MinerU free?
MinerU is licensed under Apache-2.0. Check official website for current details.