MBOX to CSV converter

Your email archive.
A useful spreadsheet.

Export an email list for Excel or Google Sheets.
Find the emails you need, then download their details.

Free CSV export
No account. No upload.
Archive workspace
Stays on your device

Open an email archive

Drop an MBOX file here, or choose one below.

.mbox files · No upload or installation
Have a ZIP or a larger mailbox?

Extract the ZIP on your computer, then select the .mbox file inside. There is no fixed limit on the archive’s file size. Up to 100,000 messages and 64 MiB per message; other processing limits apply. Large archives take longer to open. Read the Takeout guide.

Free viewing and downloads. No card needed.

01

Open your MBOX fileExtract it from your Takeout ZIP first, if needed.

02

Choose your scopeUse search and filters, or keep every email.

03

Export your email listReview the matching count and download CSV.

One row per email. Including the ones without files.

The CSV contains the message reference, sender name and address, To, Cc and Bcc when present, full subject, original date header, UTC date, source-message size, attachment count and attachment names. It follows the order of your MBOX file.

Example columns · fictional emails
SubjectFrom addressAttachment count
text: September receipttext: maya@example.test1
text: Meeting notestext: leo@example.test0

What is included—and what is separate?

This is an email-metadata export: message bodies and attachment contents are not inside the CSV. The current search and filters define the emails exported. Selecting attachment checkboxes changes your ZIP selection, not the email list.

To download the actual files, use the Download button beside an attachment or export selected attachments together. The ZIP includes its own attachment index, with one row per exported attachment.

Opening the CSV in Excel or Google Sheets

Open emails.csv in Excel, or use File → Import in Google Sheets. The file uses UTF-8 and comma-separated columns. If your spreadsheet shows everything in one column, use its import option and choose comma as the separator. Multiple recipients and attachment names appear on separate lines within a cell.

Text cells begin with text: so email content is treated as text instead of a spreadsheet formula. Counts and sizes remain numbers. The prefix is intentional; removing it from untrusted content can expose formulas. Original and UTC dates are separate, and an unknown date remains empty after the text prefix.

Private processing, clear limits

Your archive is read on your device. CSV exports are free and limited to 64 MiB per download. If a list exceeds that size, narrow it with sender, date or search filters. The reader supports one conventional MBOX file at a time, up to 100,000 messages and 64 MiB per message; other processing limits apply.

Starting from Gmail? Follow the Google Takeout guide to obtain your MBOX file. To read the archive in a desktop mail app, see importing MBOX into Thunderbird.