Convert PST to ICO
Convert PST to ICO online: the mailbox's messages laid out one after another, saved as a 256 × 256 ICO icon. Free, no sign-up.
Drop your PST files here
Up to 200MB per file.
Conversion Settings
Files are encrypted and auto-deleted after conversion
How to Convert
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Upload your PST files
Drag and drop or select PST files from your device. You can upload multiple files at once.
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Configure Output
Choose any available ICO output options, then start the conversion.
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Download ICO files
Once conversion finishes, download your files individually or as a compressed ZIP archive.
Why convert PST to ICO?
Microsoft Outlook for Windows stores email in PST data files, which people often export to back up or move a mailbox. The image shows the content of each message in the mailbox, with its text formatting and tables kept, placed one after another beneath a “PST mailbox” heading.
ICO output is a 256 × 256 pixel Windows icon: the image is scaled to fit with its proportions kept, and the surrounding space is transparent.
Frequently Asked Questions
How do I convert PST to ICO?
Drop your PST file above and press Convert. Our servers export the messages from the mailbox, lay out each message in turn and render the pages. The result is saved as a 256 × 256 ICO icon, ready to download.
Does the ICO include messages from every folder of the PST file?
Yes. The converter exports the whole mailbox, looks through every folder and subfolder, and lays out the messages it finds in the ICO.
Is the formatting of PST emails kept in the ICO?
Yes. Messages are exported in their HTML form, so headings, bold and italic text, lists and tables are rendered as they were written.
Which part of the PST becomes the ICO icon?
The first page of the rendered content is used for the icon, fitted inside the 256 × 256 square with its proportions kept.
What size is the ICO made from a PST file?
The icon is 256 × 256 pixels, the largest standard Windows icon size. The image is fitted inside the square with its proportions kept and a transparent surround, stored as a PNG-compressed icon.
Is my .pst file kept private?
Your file is uploaded over an encrypted connection, converted on our servers and deleted automatically within 24 hours. We never read, share or keep your files, and no account is needed.