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Converted on secure servers

EML to HTML Converter

EML email is parsed by mail-ir and rendered as HTML with headers made explicit for eml-to-html.

Free anonymous limits

Free without signing in: 10 server conversions per day, 10 MB each. Browser-only conversions stay on this device and do not count against server limits.

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Supported formats

.eml → .html, .htm

Conversion engine

mail-ir

Encrypted in transitDeleted within 24 hData formats stay in browser10 free today

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Pair-specific

Features & use cases

Features

  • EML email is parsed by mail-ir and rendered as HTML with headers made explicit for eml-to-html.
  • Subject, From, To, and Date become a visible header block or Markdown table before the message body.
  • EML MIME parts are parsed with PostalMime, preferring the text body or a sanitised HTML body.
  • HTML email bodies are sanitised for scripts and style noise; tracking pixels and client-specific rendering are not reproduced.

Use cases

  • Prepare EML files for tools that expect HTML.
  • Create reviewable samples for support tickets, tests, and data handoffs.
  • Batch recurring file chores while keeping warnings attached to each output.
  • Normalize partner or archive files without installing desktop conversion software.

See real results

Original

Orders.xlsx

Orders
Order IDCustomerTotalPaidShip date
1001Northwind Ops1294.50TRUE2026-09-03
1002Atlas Finance488.75FALSE2026-09-04
1003Studio Blue73.10TRUE2026-09-05
Sheet tab: Orders

Converted

Pretty preview

Order ID,Customer,Total,Paid,Ship date
1001,Northwind Ops,1294.5,true,2026-09-03
1002,Atlas Finance,488.75,false,2026-09-04
1003,Studio Blue,73.1,true,2026-09-05
3 rows
values only
0.4 s
in-browser
Try this conversion

What actually changes

EML email is parsed by mail-ir and rendered as HTML with headers made explicit for eml-to-html.
Subject, From, To, and Date become a visible header block or Markdown table before the message body.
EML MIME parts are parsed with PostalMime, preferring the text body or a sanitised HTML body.
HTML email bodies are sanitised for scripts and style noise; tracking pixels and client-specific rendering are not reproduced.
Attachments are not embedded into the converted body; the page should be treated as message content, not an archive bundle.
HTML output stays text-oriented and is best for review, search, or archiving message content.

Example

input
EML message with Subject, From, To, Date, HTML body, and attachments
output
HTML export with a headers table and sanitised body; attachments are listed separately

Do it in code

cli
python -m mailparser input.eml > output.html

FAQ

Are attachments included in the output?

No. Attachments are listed or ignored by the message parser but not embedded into the converted body.

Will HTML email look identical?

No. Scripts, styles, tracking pixels, and client-specific layout are sanitised or simplified.

Can I convert Outlook MSG files?

This page is for EML input; MSG has its own conversion pages.

Does email to PDF preserve headers?

Headers are included in the text or markup output for this pair.

Are quoted replies kept?

Quoted reply text remains when it appears in the parsed body; the converter does not infer conversation threads.

Related conversions

CSV to HTMLTSV to HTMLTXT to HTMLJSON to HTMLJSONL to HTMLYAML to HTMLXML to HTMLXLSX to HTMLXLS to HTML

Everything you need

Browser-first privacy

CSV, JSON, XML, YAML, XLSX, and table conversions run locally when the source and target formats support it.

Warnings, not surprises

Formula drops, flattened arrays, sheet selection, and layout changes are surfaced as conversion warnings.

Batch and zip

Queue multiple files, download individual results, or package them into a zip for handoff.

API, CLI, MCP

Convert from browsers, scripts, automations, and AI assistants with the same warnings and outputs.

Team workspaces

Shared history, API keys, limits, and retention settings keep production conversions controlled.

Retention you control

Browser files never upload; server inputs auto-delete within 24 hours and outputs follow workspace retention.

Comparison

Why teams switch

Decision point
FileTypeConverters
Upload-only converters
Where data files are processed
CSV, JSON, YAML, XML, and spreadsheet files can convert in your browser.
Most tools upload every file to their servers first.
What you learn about fidelity
Warnings call out flattened arrays, dropped formulas, selected sheets, and layout changes.
Downloaded files often arrive with no explanation of what changed.
Batch + zip
Batch files and download individual results or one zip.
Batching is often paid-only or missing.
API, CLI, and MCP
Use the web app, automation, or an AI assistant with the same conversion behavior.
Many converters are web-form only.
Retention control
Browser files never upload; server inputs are deleted within 24 hours.
Retention is usually unclear or not configurable.
Price
Start with free browser conversion and clear paid limits.
Limits are often hidden behind upload steps or subscriptions.

Where data files are processed

FileTypeConverters: CSV, JSON, YAML, XML, and spreadsheet files can convert in your browser.

Upload-only converters: Most tools upload every file to their servers first.

What you learn about fidelity

FileTypeConverters: Warnings call out flattened arrays, dropped formulas, selected sheets, and layout changes.

Upload-only converters: Downloaded files often arrive with no explanation of what changed.

Batch + zip

FileTypeConverters: Batch files and download individual results or one zip.

Upload-only converters: Batching is often paid-only or missing.

API, CLI, and MCP

FileTypeConverters: Use the web app, automation, or an AI assistant with the same conversion behavior.

Upload-only converters: Many converters are web-form only.

Retention control

FileTypeConverters: Browser files never upload; server inputs are deleted within 24 hours.

Upload-only converters: Retention is usually unclear or not configurable.

Price

FileTypeConverters: Start with free browser conversion and clear paid limits.

Upload-only converters: Limits are often hidden behind upload steps or subscriptions.

Choose your plan

Free

$0/mo

50 conversions/month

  • 50 conversions/mo
  • 25 MB max file
  • No signup required
Get started

Starter

POPULAR

$8.99/mo

For regular conversion work

2-day trial for paid plans

  • 500 conversions/mo
  • 100 MB max file
  • API + MCP
Start free trial

Pro

$29.99/mo

For heavy teams

  • 5,000 conversions/mo
  • 1 GB max file
  • API + MCP
Start free trial