Folders and labels
All messages
No messages match this filter.
Select a message from the list to read it here.
Univik Online MBOX Viewer
100% private. Runs only on your device
The All mail Including Spam and Trash.mbox from Google Takeout, with every label. Read it on any device with nothing installed and nothing sent out.
Or pick it from your device. Messages open in this tab, on your own computer, phone or tablet. Your mailbox is never uploaded.
A Google Takeout export is an email archive of your whole Gmail account, spam and trash included. This page reads that file inside your browser, right where it sits on your device, with no email client, no server, no login and nothing sent anywhere.
Drop the .mbox that Google gave you. Your browser splits it into messages on its own, with no copy made anywhere else.
You do not need Thunderbird or the ImportExportTools add-on. Skip the import step that stalls on a big export and read the file as it is. Mail already sitting in a Thunderbird profile has its own Thunderbird viewer page.
Once this tool has loaded you can turn the network off. It keeps building the list from the file on your disk.
Download one message as .eml, pull an attachment out or save the list you are looking at as .csv.
Short answer: download the Takeout archive on the device, unzip it, open this page and pick the .mbox. It runs in a browser tab on a PC, Mac, Linux box, Chromebook, iPhone or Android phone.
Right click the zip, choose Extract All and open the Mail folder inside. Load the .mbox here in Edge, Chrome or Firefox. Windows itself has no program for the file.
Double click the archive to unpack it, then open the .mbox in Safari or Chrome on this page. No need to import it into Apple Mail first. A mailbox exported from Mail itself is a different shape, covered on the Apple Mail export page.
Pick the .tgz option at export time if you prefer, unpack it in a terminal or file manager and open the mailbox in any browser.
Unzip the archive with the Files app on iPhone or a file manager on Android, then open the .mbox here. Keep phone exports to a few gigabytes so the browser has room.
Gmail cannot read its own Takeout file back in and ChromeOS has no mail program that can. This tool reads it in Chrome straight from Files or Drive.
Google packs the whole account into one plain text file and stamps each message with an X-Gmail-Labels line. The tool reads that line and turns it back into something you can browse.
Starred, Important, Inbox, Sent and Drafts appear on the left with a count, next to the Category tabs for Promotions, Social, Updates and Forums. Every label you created is listed too. Read state comes through as Unread or Opened tags, along with Archived and Chat.
Labels written in Hindi, Arabic, Japanese or any other script come out of Google's encoded form and show as real text.
The file is read in pieces, so an export of several gigabytes opens without the browser loading all of it into memory at once.
If you ticked labels one by one at export time, Takeout hands you a separate .mbox for each, named after the label, such as Inbox.mbox, Starred.mbox or Work.mbox. Open them one at a time here.
The X-GM-THRID thread id and every original header, Message-ID, Received and DKIM-Signature lines included, sit unchanged in the Headers tab.
Rich messages display with their inline pictures. Attachments open in their own tab or download together as a zip.
At takeout.google.com, the Download Your Data page for your Google Account, deselect everything, tick Mail and create the export. Leave the delivery method on Send download link via email and Google mails the link when it is ready.
Unzip the download and go into Takeout, then Mail. The mailbox file waiting there is All mail Including Spam and Trash.mbox, and it is the only one you need.
Drop that file onto the box at the top. Your labels fill the left panel while the tool reads the file on your device.
The export is a zip or tgz archive. Here is what sits inside it and what each piece is for.
Takeout/Mail/All mail Including Spam and Trash.mbox holds every message in the account in one file. Spam and Trash are in there too, tagged with their labels.
Choose labels individually before you export and Google writes one .mbox per label, each carrying the label name, instead of the single big file. Handy when you only want one project or one year.
The archive lands in Downloads as takeout-20260827T091500Z-001.zip, the date and time of the export followed by a part number. A large account arrives as several such files numbered 002, 003 and onward. The mailbox inside is split to match, named All mail Including Spam and Trash-001.mbox, -002.mbox and onward. Unpack each one and open the piece it holds.
File type is .zip or .tgz. File size is the split point, 2 GB by default with 1, 4, 10 and 50 GB on offer. Delivery can be an email link or a copy sent to Google Drive, Dropbox, OneDrive or Box. Frequency is once, or every 2 months for a year. Download links stop working after about a week.
Takeout can export a Google Groups archive as well, and that comes as .mbox too. Open it here the same way you open your Gmail file.
Both are Univik tools. This online page suits a quick look at one Takeout file on any machine. The free Univik MBOX Viewer for Windows is for loading every .mbox from a big export at once, searching inside message text and printing.
| Feature | Online Takeout Viewer | MBOX Viewer for Windows |
|---|---|---|
| Install needed | None, opens in the browser | 15 MB Windows setup |
| Operating system | Windows, Mac, Linux, Chromebook, iOS, Android | Windows 7 to 11 |
| Files uploaded | Never, runs on your device | Never, runs on your PC |
| Takeout .mbox files | One file at a time | Whole export folder at once |
| Gmail labels | Label filter | Shown per message |
| Search | Sender, subject, recipients, labels | Message bodies too |
| Large exports | Read in pieces, multi GB files open | No size limit |
| Browser print of the open message | Direct printing | |
| Price | Free | Free |
Yes. Most guides send you to Thunderbird plus the ImportExportTools add-on, and that import is slow or stops on the big files Takeout produces. This page reads the .mbox as it is. Drop it in and the messages appear, no mail program involved.
Look for a file named takeout-, then a date stamp, then -001.zip. Unzip it and open the Takeout folder, then the Mail folder inside it. The file you want is All mail Including Spam and Trash.mbox. The small .html file beside it only describes the export and holds no mail.
Yes. Gmail does not use folders, so the export is one flat file with each message tagged in an X-Gmail-Labels header. The tool reads that header and lists every label on the left with a count. Pick a label and the list narrows to it.
Yes. The file is read in chunks and the message list fills in as it goes, so the browser never has to hold the whole export in memory. Exports of 5 GB and 10 GB open this way on a desktop. On a phone, keep the file smaller so the browser has room.
Two reasons. If you picked labels one by one at export time, Google writes a separate mailbox for each label, named after it, like Sent.mbox. If the account is large, the download is split into numbered parts and the mailbox with it, so the pieces are called All mail Including Spam and Trash-001.mbox, -002.mbox and so on. Open each file here on its own.
No. A Takeout export is your entire Gmail history, so this matters. The tool reads the file on your device and sends nothing out. There is no account to make and no server on the other end. Disconnect from the internet and it keeps working.
Yes. Download the archive to the phone, unzip it with the Files app on iPhone or a file manager on Android, then open this page and choose the .mbox. A smaller label by label export is the comfortable size for a phone.
No. Takeout writes mail as mbox only. PST is an option in Google Vault, the Google Workspace admin tool, which can export Gmail, Google Groups and Google Chat as either PST or mbox. A Workspace account may also be covered by the separate admin Data Export tool. Whichever route made your file, the mbox version opens here.
Open the message and use Download, then This message as .eml. The .eml file opens in Outlook, Thunderbird or Apple Mail and keeps the original headers and attachments, so you can forward it or file it away.
Drop the Takeout .mbox and read your Gmail history right here. Nothing leaves your device.
Choose a Takeout .mbox file