Why Privacy Matters in Document Conversion
When you convert Markdown online, the file has to reach the service that converts it. Read what that service stores, who else receives it, and whether export requires an account.
Uploading or pasting sends your Markdown to our server, which renders the live preview and builds each export. Uploads are temporary and are removed by a cleanup job. They are not kept as a document library. Preview does not require an account. Sign in to export. A signed-in account stores the account and a conversion count, not the document.
What this guide does not claim
This page describes MD Converter only. Publisher, Reverse, Slides, Clip, Diagram, and Diff are covered in the privacy policy. It does not say how long other websites keep files, and it does not say that every online tool trains models or sells documents.
How MD Converter Handles Your Data
MD Converter's architecture is built around privacy from the ground up. Here's exactly what happens when you upload a file:
Step 1: Upload
Your Markdown file is uploaded to our server. Free conversions accept files up to 2 MB. A conversion pack accepts files up to 10 MB.
Step 2: Processing
The file is converted to your chosen format (PDF, DOCX, or HTML). For PDF and DOCX exports, Mermaid diagrams are rendered server-side as images. The upload and the generated file are written to a temporary folder on the server.
Step 3: Download
You download the converted file. The download happens directly from our server to your browser.
Step 4: Deletion
After you download, the file is still temporary until cleanup runs. A background job removes old files. Deletion is not guaranteed at the instant export finishes. Files are not kept as a document library.
What we store: temporary upload files, and, if you have an account, your account details and a conversion count. We do not publish your documents.
Client-Side vs. Server-Side Processing
MD Converter uses a hybrid approach to balance privacy with functionality:
The live preview updates in the browser after the file is uploaded. PDF and DOCX are built on the server. Temporary files are removed by a cleanup job, not at the instant conversion completes.
What We Don't Do
To be clear about our privacy commitments, here's what MD Converter never does:
- We do not keep your documents as a library after cleanup
- Uploaded documents are not used to train models
- We do not sell your files
- Preview does not need an account. Export does. The account stores a conversion count
- Analytics cookies run only after you accept them
What temporary processing still means
Files are processed for the conversion you requested and then removed by cleanup. Do not upload material you cannot send to a conversion service. This is not a promise of instant deletion or of a certified private network.
Proprietary Code
Technical notes are still uploaded for the conversion. Remove secrets before you upload.
Legal Documents
A contract is processed on the server and kept only until cleanup. It is not stored as a library item.
Personal Notes
Personal notes are sent to the server for the conversion, then removed by cleanup.
Internal Reports
An internal report is uploaded for the export. Do not treat the service as an offline tool.
MD Converter file handling
The Privacy Advantage
Files are uploaded so they can be converted, then removed by cleanup. We do not keep a document library, and we do not use uploaded documents to train models. Payment, email, fonts, and optional analytics are described in the privacy policy.
For sensitive content, treat this as an online converter: the file leaves your device for the conversion. A local tool is the right choice when the file cannot be uploaded.
Best Practices for Secure Document Conversion
Before you upload a sensitive file, follow these practices:
- Remove sensitive data before conversion: Strip API keys, passwords, and personal identifiers from documents
- Use HTTPS: Always ensure you're on a secure connection (www.adoneinu.com/converter uses HTTPS)
- Verify the tool's privacy policy: Read the data retention practices before using any converter
- Consider local tools for highly sensitive data: For classified information, local conversion tools like Pandoc may be preferable
- Download and verify: Always download your converted file and verify the output before closing the browser