# GetMarkdown > Free browser-based file-to-Markdown converter for AI, RAG, knowledge bases, and Markdown workflows. The free converter runs locally in the browser; Pro PDF conversion uses server-side processing for higher-fidelity PDF output. ## Core Pages - [File to Markdown Converter](https://www.getmarkdown.com/): Upload supported files and download clean Markdown. Free-tier conversion runs in the browser with no server upload. - [How GetMarkdown Works](https://www.getmarkdown.com/how-it-works): Explains the browser-based Pyodide and MarkItDown pipeline, supported formats, privacy model, Markdown output, and AI/RAG use cases. - [GetMarkdown Pro](https://www.getmarkdown.com/pro): Paid server-side PDF conversion for complex PDFs that need better table handling, structure extraction, Markdown output, and JSON output. ## Free Converter Facts - Supported free-tier extensions: `.pdf`, `.docx`, `.pptx`, `.xlsx`, `.html`, `.htm`, `.txt`, `.jpg`, `.jpeg`, `.png`, `.mp3`, and `.wav`. - Maximum free-tier file size: 10 MB per file. - Maximum free-tier batch size: 8 files at once. - Free-tier processing runs locally in the browser using Pyodide and MarkItDown. - Free-tier files are not uploaded to GetMarkdown servers. - DOCX and PPTX conversions can package extracted embedded images in a ZIP archive with the Markdown file. ## Pro PDF Facts - Pro accepts one PDF at checkout. - PDF Starter supports PDFs up to 50 MB. - PDF Batch supports PDFs up to 100 MB. - Pro uploads the PDF to the conversion service for server-side processing. - Pro returns a ZIP bundle containing Markdown and JSON output. ## Expanded Context - [llms-full.txt](https://www.getmarkdown.com/llms-full.txt): Expanded Markdown reference for agents that need product behavior, limits, workflows, and privacy details.