Free EML Converter
Convert to Any Format
Convert EML to PDF, MBOX, HTML, CSV, TXT, or JSON. Single or batch — private and secure.
Drop EML files here
or click to browse · select multiple files
What Is EML to JSON Conversion?
EML is the standard format for a single email message (RFC 822 and MIME). One .eml file holds one message — headers and body (plain or HTML). EML to JSON conversion turns your EML messages into structured JSON: an array of objects with fields like from, to, subject, date, and body.
This tool reads each EML file on your device, parses headers and body, and outputs valid JSON. No data is uploaded. You download a single .json file. Batch mode combines many EML files into one JSON array for use in apps, APIs, or scripts.
Converting EML to JSON is useful for feeding email data into applications, building search indexes, automation, or data analysis. The process is free, private, and works with EML from any source.
All processing is private; nothing is sent to our servers. Your email files stay on your device until you download the JSON.
Features
Why use the EML to JSON converter
Structured JSON output
Each EML message is exported as a JSON object with from, to, subject, date, body, and other fields. Ideal for apps, APIs, or scripts.
RFC 822 parsing
EML is parsed on your device. Headers and body (plain or HTML) are extracted and written as valid JSON.
Batch EML to JSON array
Drop multiple .eml files. All messages are parsed and combined into one JSON array for easy processing.
No upload
Conversion runs on your device. Your EML files stay on your device — nothing is sent to our servers.
Private & secure
Your email files never leave your device. Ideal for feeding email data into apps or APIs privately.
How to Convert EML to JSON
Four steps — no install, no sign-up
Open the EML to JSON Converter
Come to this page — JSON is already selected as the output format.
Drop one or more .eml files
Drag and drop .eml file(s) or click to browse. Multiple files are combined into one JSON array.
Review the email list
Check the preview table (From, To, Subject, Date). Ensure JSON is selected as the output format.
Convert & download JSON
Click Convert & Download. A single .json file is generated with an array of email objects.
Frequently Asked Questions
Common questions about EML to JSON conversion
Q1. What is EML to JSON conversion?
Q2. Why convert EML to JSON?
Q3. Do you upload my EML files?
Q4. Can I convert multiple EML files to one JSON?
Q5. What fields are in the JSON?
Q6. Is the EML to JSON converter free?
Related Tools
More converters and viewers from OnlinePCTools