MarkDone

MarkDone is a browser-based hub for local document and data conversion, designed to keep all processing on the user's device for enhanced privacy. It offers a suite of converters that handle a variety of formats, including Markdown, PDF, DOCX, XLSX, JSON, YAML, CSV, and TOON, without requiring any uploads or user accounts. The platform addresses the need for secure, private, and fast file transformation, particularly for users working with notes, technical documentation, structured data, and AI prompt workflows.

Key features include converting Markdown to PDF, DOCX to PDF, XLSX to PDF, and PDF to Markdown, as well as handling README files, Mermaid diagrams, and batch conversions. MarkDone also provides tools for converting between JSON, YAML, CSV, and TOON formats, supporting workflows for API payloads, CI/CD configurations, and AI context preparation. md file. The tool supports previewing results and downloading outputs directly from the browser, with original filenames preserved and ZIP download options available for batch jobs.

MarkDone is aimed at users who require private, local conversion for documents, diagrams, technical notes, repository documentation, and structured data. Its design eliminates upload queues and server-side processing, making it suitable for sensitive files such as business handoffs, meeting notes, code documentation, and data used in AI workflows. xlsx.

The service operates on a freemium model, with a free tier that has file size limits and an option to upgrade to a Pro version for handling larger files. MarkDone does not require user registration or cloud accounts, ensuring that documents remain private and only an anonymous usage count is recorded. All conversions are performed locally within the user's browser, reinforcing its privacy-first approach.