Convert OST to GIF
Convert OST to GIF online: cached Outlook messages laid out as readable pages, saved as a GIF image. Free, no sign-up.
Drop your OST 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 OST files
Drag and drop or select OST files from your device. You can upload multiple files at once.
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Configure Output
Choose any available GIF output options, then start the conversion.
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Download GIF files
Once conversion finishes, download your files individually or as a compressed ZIP archive.
Why convert OST to GIF?
Outlook keeps an OST file as an offline copy of an Exchange, Microsoft 365 or Outlook.com mailbox on your computer. The image shows the body of each message from the offline mailbox, formatted text and tables included, stacked in turn beneath an “OST mailbox” heading.
GIF stores the image with an optimised palette of up to 256 colours, which suits text, diagrams and flat colour.
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Frequently Asked Questions
How do I convert OST to GIF?
Drop your OST file above and press Convert. Our servers read the offline data file, export its messages and render them one after another as pages. The result is saved as a GIF image, ready to download.
Can I turn an OST file into GIF without Outlook installed?
Yes. The OST file is read directly on our servers, so its cached messages are laid out and rendered without Outlook or a connection to the mail server.
Which parts of each OST message are rendered in the GIF?
Each message body is rendered with its text, formatting and tables, and the messages follow one another beneath an “OST mailbox” heading.
What happens when a OST file fills several GIF pages?
Each page is rendered at 144 dpi and saved as its own GIF image, named page-1, page-2 and so on, and they download together as one ZIP. A single page downloads as one GIF file.
How are colours handled in the OST to GIF image?
GIF uses a palette of up to 256 colours. The converter builds an optimised palette from the rendered image, which keeps text, lines and solid colours clean.
Is my .ost 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.