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.ICE·File Extension

ICE Other — A .ice file is a ICE Other. It is a file format typically read and written by specialized applications.

Otherx-conference/x-cooltalk

Quick facts

Extension.ice

File typeICE Other

MIME typex-conference/x-cooltalk

CategoryOther

Charset—

Compressible—

What is .ice

What is a .ice file?

A .ice file is a ICE Other. It is a file format typically read and written by specialized applications.

In the mime-db registry it maps to x-conference/x-cooltalk. When serving .ice over HTTP, set the Content-Type header as shown in Developer info below.

Related entities: it maps to x-conference/x-cooltalk and is used by JSON, Slice among others — and is delivered over HTTP via the Content-Type header.

How to open .ice files

Use VS Code or xxd to open and edit .ice files.
Any text editor (Notepad, VS Code) can inspect the raw content as text.

Developer info

When served over HTTP, responses should set the following header:

Content-Type: x-conference/x-cooltalk

Common software that reads/writes .ice:

VS Codexxd7-Zip

Relation chain

.iceextension of

format

ICE Otherserved as

mime type

x-conference/x-cooltalksent via header

http header

Related extensions

Related MIME types

x-conference/x-cooltalk

.ice

Related programming languages

JSON

.json .4DForm .4DProject

Slice

.ice

Common uses

Application-specific data

How to edit .ice files

Open the file with VS Code, make your changes and save.
Most editors preserve the original formatting and encoding — avoid changing the charset.

How to create .ice files

Create a new file and save it with the .ice extension, or export this format from VS Code.

Frequently asked questions

What programs can open .ice files?

Common options include VS Code, xxd, 7-Zip. You can also open many of these files with built-in viewers or a browser.

How do I create a .ice file?

Create a new file in any text editor or the app that owns the format and save it with the .ice extension.

What is the relationship between .ice and the x-conference/x-cooltalk MIME type?

x-conference/x-cooltalk is the media type identifier used for .ice files during network transfer (for example in the HTTP Content-Type header).

Sources & standards

Updated 2026-09-13

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