OST to MBOX Converter. Convert Microsoft Outlook OST to Thunderbird MBOX onine for free

Drop or upload your files

Save as

Use the OST to MBOX Conversion application to migrate your email storage from Microsoft Outlook OST format to Thunderbird MBOX format.

OST Outlook Offline Storage File

OST or Offline Storage Files represent user's mailbox data in offline mode on local machine upon registration with Exchange Server using Microsoft Outlook. It is automatically created on the first use of Microsoft Outlook upon connectivity with server. Once the file is created, the data is synchronized with the email server so that it is available offline as well in case of disconnectivity from email server.

MBOX Email Mailbox File

MBox file format is a generic term that represents a container for collection of electronic mail messages. The messages are stored inside the container along with their attachments. Messages from an entire folder are saved in a single database file and new messages are appended to the end of the file. Numerous applications and API provide support for MBox file format such as Apple Mail and Mozilla Thunderbird.

How to convert document files

Click inside the file drop area to upload document files or drag & drop document files.
Click on "Save as" menu and select output type what you need.
Click on Convert button. Your document files will be uploaded and converted to result format.
Download link of result files will be available instantly after conversion.
You can also send a link to the document file to your email address.

FAQ

🛡️ Is it safe to upload files to your application?

Aspose gives the highest importance and attention to security issues. Uploaded files are kept in secure storage servers and protected from any unauthorized access. All uploaded files are automatically deleted in 24 hours.
🗂 What is the maximum allowed file size?

You can upload files of sizes up to 250Mb.
❓ Where can I find more information about the application?

If you have questions about the functionality of the application, or found issues, or need some new functionality, please start a discussion in our free support forum.

OST to MBOX Converter