Turn MBOX mailboxes into HTML. It is converted in your browser, so the file never leaves your device.
Drop MBOX files here
or choose from your computer paste with Ctrl V
from Photos or Files
Ready · other file types work too0 bytes uploaded, ever
Drop MBOX (MBX) files onto the box above, or click it to choose them. ToAny reads the file's contents to detect the type, so a wrong extension does not matter.
Press Convert. There is nothing else to set. The work happens in this tab.
Save the HTML, or download everything as one ZIP if you converted several files.
The MBOX to HTML converter is part of this page and runs inside your browser. Your mailboxes are never sent to ToAny or to anyone else.
Nothing has to travel to a server and back, so the conversion starts the moment you press Convert, even on a slow connection.
No sign-up, no email address and no watermark. Add several files and download them together as a ZIP.
MBOX is one big file with no index, and different programs write it slightly differently. HTML opens in any browser and can be published on the web as-is. MBOX is at home in archiving or moving a whole mailbox; HTML is the usual choice for web pages and emails.
All messages go onto one page, up to 2,000 of them; a bigger mailbox is refused and the message suggests splitting it into EML files first. Mailboxes up to 400 MB are accepted.
An MBOX file holds many emails one after another in a single text file, each starting with a From line. It is the oldest Unix mailbox layout, Thunderbird stores folders this way, and Google Takeout exports Gmail as MBOX. Several slightly different variants exist.
Opens in Thunderbird, Apple Mail (import) and Unix mail tools; Gmail exports use it
MBOX converterHTML is the markup every web page is written in. A saved .html file contains the page's structure and text; its images, styles and scripts usually live in separate files.
Opens in Every web browser
HTML converter| MBOXMailbox | HTMLWeb page | |
|---|---|---|
| Stands for | Mailbox file | HyperText Markup Language |
| Type | Email collection | Web page markup |
| Compression | None | None |
| Introduced | The 1970s, by Unix mail systems | 1991, by Tim Berners-Lee (now maintained by WHATWG) |
| Opens in | Thunderbird, Apple Mail (import) and Unix mail tools; Gmail exports use it | Every web browser |
| Best for | Archiving or moving a whole mailbox | Web pages and emails |
| File extension | .mbox, .mbx | .html, .htm, .xhtml |
No. The MBOX to HTML conversion runs inside your browser, on your own phone or computer. The file is not sent to ToAny or to anyone else.
Text is kept. Formatting carries over only as far as HTML supports it.
Yes. Add as many as you like, convert them together and download each result or all of them as one ZIP.
The steps are the same everywhere because ToAny runs in the web browser: open this page in a current version of Chrome, Edge, Safari or Firefox, add the MBOX file, press Convert and save the HTML. There is nothing to install.
Yes. A mailbox can be up to 400 MB; a larger one is refused with a message. Beyond that the limit is your device's memory, since nothing is uploaded; a computer copes with large files better than a phone.