FreeOne file per message

Convert PST to EML.

Export every message as an .eml file, arranged in your folder structure, in one ZIP. Readable by almost any mail app, for decades.

Nothing uploadedEvery result verifiedOriginal never changed
PST

Drop the PST to export

or choose it (OST files too). You get a ZIP of .eml files in folders.

Read on this computerNothing uploaded
    The result is checked before you can save it.
    Working
    Elapsed 0 s · your file stays on this computer
    How it works

    3 steps, nothing to install.

    1

    Check the PST

    A free health check confirms the file is readable and counts its messages.

    2

    Convert

    Every message becomes an .eml file in its folder, with attachments and HTML kept.

    3

    Use them anywhere

    Open .eml files in Apple Mail, Thunderbird or Outlook, or keep them as a long-term archive.

    Verified, not assumed

    Checked before you save it.

    The engine checks its own work. The result is read back from storage and compared with your original, and the report you can download lists every check.

    Every message parsed back from the archive and compared with the PST
    Subject, addresses, bodies, attachments, date and Message-ID kept
    Archive checked entry by entry
    The original file is unchanged
    FAQ

    Questions, answered.

    How are the files named?

    By number and subject (“0003 Quarterly report.eml”), in folders named like your PST folders, with unsafe characters replaced.

    What is not converted?

    Contacts, calendar items and tasks become plain messages; embedded messages and links to files are listed in the report but not converted yet.

    Is my file uploaded?

    No. The engine runs inside your browser tab and reads the file from your disk. Results are written to your browser's private storage until you save them. Nothing is sent to a server.

    Related

    More PST tools.

    PST to MBOX

    For Thunderbird and Apple Mail.

    PSTMBOX

    PST Viewer

    Open and read the PST without Outlook.

    ViewPST

    EML to PST

    A folder of messages into Outlook.

    EMLPST