MinerU Review 2026

High-quality document parser converting PDFs to Markdown

⭐ 78k+ stars 📜 Apache-2.0 🏷️ ai-tools

Overview

High-quality document parser converting PDFs to Markdown

✓ 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

✗ 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

• {'icon': '📊', 'title': 'Table & Formula Preservation', 'desc': 'Extracts and reconstructs tables, mathematical formulas, and multi-column layouts as valid Markdown, maintaining structural integrity lost in standard PDF extraction.'}
• {'icon': '📈', 'title': '95% Accuracy on Structured PDFs', 'desc': 'Achieves ~95% conversion accuracy on structured documents versus ~70% for PyPDF2, reducing manual correction overhead for enterprise document workflows.'}
• {'icon': '⚙️', 'title': 'Batch CLI Processing', 'desc': 'Process hundreds of PDFs simultaneously via command-line interface, enabling scalable document conversion pipelines without iterative single-file handling.'}
• {'icon': '🎯', 'title': 'Layout-Aware Markdown Output', 'desc': 'Intelligently detects and preserves document structure including headers, footers, columns, and text hierarchy in semantically correct Markdown format.'}

MinerU is a strong open-source ai tools tool with 78k+ GitHub stars. Its large community and active development make it a dependable choice in 2026.

MinerU is a ai tools tool with 78k+ GitHub stars. High-quality document parser converting PDFs to Markdown

MinerU is Apache-2.0. Check the official website for current pricing.