plainfolder → Mail → GZ → CSV

MBOX.GZ to CSV — without unpacking first

A gzipped mbox file is read as it is and turned into a CSV table, with no unpacking step.

No server processing No account No daily limits

About this conversion

Mailing-list archives and server backups almost always arrive as .mbox.gz. Decompression happens in the browser as the file is read, so the extra round trip through an unpacking tool disappears.

Just want to look inside it?

The same tool without converting anything: open the file and read it.

You are not locked into CSV

The file is parsed once and stays open, so the format is picked at the end rather than the beginning: the same .gz can leave here as XLSX, ZIP, EML, MBOX, PDF, HTML, TXT or JSON. Before that you can search it by subject or address, filter by year, sender and attachment type, mark the duplicates and look through the archive overview.

Questions

Does .tgz from Google Takeout work too?
Yes. Takeout hands out .tgz, and the tar inside it is read as well.

Related conversions

MSG→CSVPST→CSVMBOX→CSVEML→CSVZIP→CSVOST→CSV