Open, View & Convert MHT Archives.
MHT Viewer opens massive web archives on-device. No browser extensions, no file limits, nothing sent anywhere. Convert to HTML or Word, unpack embedded assets, and read safely offline.
100% offline · no size limit · no server uploads
MHT archives bundle a whole webpage—HTML, images, styles, fonts—into a single portable file. MHT Viewer lets you open any of them exactly as they were saved, directly on your Apple hardware.
Even the heaviest archives open instantly, without the wait or the crash you get elsewhere. You can render the page visually, inspect the raw MIME source, or extract every single embedded attachment to a ZIP folder.
Because it operates entirely offline, your web archives never leave your device. The built-in sandboxed renderer ensures that embedded scripts cannot reach your personal data, giving you a secure environment for reading web captures.
Inspect every part.
Look beyond the rendered page. Analyze the raw MIME anatomy of your archives, including boundary strings, content-types, encodings, and part sizes.
Rendered View
See the archived webpage exactly as it looked when it was saved.
Source View
Inspect the raw text source and MIME boundary tags of the file.
Parts List
View a detailed breakdown of every embedded image, font, and stylesheet.
Searchable
Quickly find text inside massive multi-gigabyte document streams.
Three steps to view an archive.
Select your archive
Pick an .mht file from Files, iCloud Drive, or drop it into the app.
Instant render
The engine streams the archive and renders the full page instantly, even for huge files.
Inspect or Unpack
View the rendered page, read the raw source, or extract all embedded assets.
Export and Convert
Convert the MHT to a standalone HTML, PDF, or Word (.docx) document.
MIME HTML & Web Archives.
MIME HTML archives. Open any MHT file from your local storage or iCloud.
Core App Features.
No Size Limit
Even the heaviest .mht files snap open on your device instead of stalling or crashing.
Batch Convert
Convert dozens of .mht archives to HTML or Word documents at the same time.
Unpack as ZIP
Extract the entire archive as a folder. Pull out all embedded images, CSS files, and data.
Sandboxed Render
Archived scripts can't reach your device data, keeping you safe from malicious files.
Encoding Detection
Automatically detects and decodes complex text encodings, including Base64 and Quoted-Printable.
Export to HTML & Word
Convert MHT archives into clean, standalone HTML files or Word (.docx) documents.
Fully Offline
Parsing, rendering, and export all run locally. No servers. No accounts. No telemetry on your files.
Archive Notes
Jot down notes about your archives right inside the app. Notes are auto-saved to your device.
Your archives never leave your device. We have no servers and collect zero file telemetry.
The same viewer on every Apple device you use.
We render archives in a sandboxed environment to prevent archived code from reaching your device.
- Reading saved webpages offline without needing specialized browser extensions.
- Archivists and researchers analyzing massive web captures or documentation snapshots.
- Legal teams reviewing court records and evidence saved as MHT files.
- Extracting embedded images and stylesheets from a single MHT package.
Download it and open your first MHT file straight away. There is no account to create, and nothing about your files leaves the device.
MHT Viewer FAQ.
What is an MHT file?
An MHT (MIME HTML) file is a web archive format that saves an entire webpage—including HTML text, images, and formatting—into a single file.
Is there a file size limit?
No. Even the heaviest archives open on your device, without the wait or the crash you get elsewhere.
Is my data uploaded to the cloud?
Never. MHT Viewer is a strictly offline utility. File parsing, rendering, and conversion happen entirely on your device.
Can I convert MHT to HTML or Word?
Yes! You can export any opened MHT file to a standalone HTML file, a PDF, or a Word document (.docx). Batch conversion is also supported.
Can I extract the images from the MHT file?
Yes, you can use the 'Unpack as folder' feature to extract all embedded images, CSS stylesheets, and raw HTML into a .zip folder.
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Read your MHT archives securely.
Open massive MHT files, inspect their MIME anatomy, and convert them to HTML or Word—all locally on your device.
MHT Viewer is an independent utility and is not affiliated with, endorsed by, or sponsored by Microsoft Corporation or any other third-party vendor. All trademarks belong to their respective owners.