Convert MBOX to ICO
Convert MBOX to ICO online: every email in the archive laid out as readable pages, saved as a 256 × 256 ICO icon. Free, no sign-up.
Drop your MBOX files here
Up to 50MB per file.
Conversion Settings
Files are encrypted and auto-deleted after conversion
How to Convert
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Upload your MBOX files
Drag and drop or select MBOX 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 MBOX to ICO?
MBOX stores a whole mail folder in one file and is used by Thunderbird, Apple Mail exports and Google Takeout. The image shows each message in turn, every one with its own table of From, To, Cc, Subject and Date, followed by its body and any attachment names, beneath an “MBOX email archive” 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 MBOX to ICO?
Drop your MBOX file above and press Convert. Our servers split the archive into its messages, lay out each one with its headers and body, and render the pages. The result is saved as a 256 × 256 ICO icon, ready to download.
How are the many emails in an MBOX file arranged in the ICO?
They appear one after another in the order they are stored, each starting with its own header table.
Which programs' MBOX exports can be converted to ICO?
Thunderbird, Apple Mail and Google Takeout all write standard mailboxes where each message begins with a “From ” line, and the converter splits the file on those lines.
Which part of the MBOX 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 MBOX 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 .mbox 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.