EML to PST converter — collect .eml files into one Outlook file
Free EML to PST converter in your browser: select many .eml messages, a zip of them or a whole folder, and get one Outlook .pst — dates, attachments and pictures kept. No trial limit, nothing uploaded.
About this conversion
A pile of .eml files is what Thunderbird’s “Save as”, Windows Mail and Windows Live Mail, webmail downloads and many backup tools leave behind — one message per file. Outlook will open them one by one, which is no use for hundreds. Drop all of them here — as files, as a zip or as a folder — and they come out as one .pst with every message, attachment and picture in place, ready to open in Outlook or import into a mailbox. There is no limit on the number of messages and no watermark, unlike the trial versions of desktop converters.
Just want to look inside it?
The same tool without converting anything: open a .eml file and read it.
You are not locked into PST
The file is parsed once and stays open, so the format is picked at the end rather than the beginning: the same .eml can leave here as CSV, XLSX, ZIP, 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
- How many .eml files can I add at once?
- Up to 20,000 files at a time when you select them or drop a folder. A zip of them counts as one file, so for more than that, zip them first.
- Do the messages keep their dates?
- Yes. Each one keeps its own sent date, sender and recipients, so Outlook sorts them as they were sent, not as they were converted.
- Which folder do they land in?
- A folder of their own in the new file, so they do not mix with anything already in your mailbox. Inside Outlook you can move them anywhere after that.
- Is the converter really free?
- Yes, with no limit on messages. The conversion runs in your browser, so there is no server to pay for and nothing to upload.