Convert mht to heif

Download and install the latest version of Filestar.
Right click on one or more Mht file(s) on your desktop and select Convert with Filestar.
Type convert to heif in the search box.
Press Convert.
Or let an AI agent do it: filestarcli -i file.mht -c "convert to heif" (how).

Let your AI agent convert MHT to HEIF

Claude Code, Codex, Cursor and other agents can do this on your computer with Filestar. Your files stay on your machine.

Install Filestar and add it to your agents:

npm install -g filestar
filestarcli agent install

Then ask your agent:

“Convert the MHT files in my Downloads folder to HEIF”

Or run it yourself:

filestarcli -i file.mht -c "convert to heif"

Runs on your computer, so your files stay on it. Works on Windows, macOS and Linux. 50 free conversions with the npm install, no account needed.

Can my AI agent convert MHT to HEIF?

Yes. Install the Filestar CLI with npm install -g filestar and your agent can run filestarcli -i file.mht -c "convert to heif" on your computer, so your files stay on it.

Using Filestar With AI Agents →

What is the difference between .mht and .heif?

Name: MHTML Web Archive; High Efficiency Image File
Extension: .mht; .heif
Format: Binary; Binary
Category: Developer; Raster Image
Developer: Microsoft; Apple
Description: An MHT file is a webpage archive saved by a web browser, such as Google Chrome or Internet Explorer. It is formatted using MIME HTML or "MHTML," which saves HTML, images and other linked resources into a single file.; Based on HEVC (High-Efficiency Video Coding), the HEIF format is an image file container with one or multiple images and is the default image format for Apple Live Photos. It replaced the JPEG format as it's smaller in size and has lossless compression ensuring high-quality photos.
MIME Type: application/x-mimearchive; image/heif
Sample: sample.mht; sample.heif
Wikipedia: .mht on Wikipedia; .heif on Wikipedia

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