What Is a .avci File? .avci Format, MIME & How to Open

Quick facts

Extension.avci

File typeAVCI Image

MIME typeimage/avci

CategoryImage

Charset—

Compressible—

What is .avci

What is a .avci file?

A .avci file is a AVCI Image. It is a raster or vector image format used for photos, web assets and design work.

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

Related entities: it maps to image/avci — and is delivered over HTTP via the Content-Type header.

How to open .avci files

Use Photoshop or GIMP to open and edit .avci 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: image/avci

Common software that reads/writes .avci:

PhotoshopGIMPPaintPreview

Relation chain

.avciextension of

format

AVCI Imageserved as

mime type

image/avcisent via header

http header

Related extensions

Related MIME types

Common uses

Web graphics and photos
Design assets and icons
Print and photography

How to edit .avci files

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

How to create .avci files

Create a new file and save it with the .avci extension, or export this format from Photoshop.

Frequently asked questions

What programs can open .avci files?

Common options include Photoshop, GIMP, Paint. You can also open many of these files with built-in viewers or a browser.

How do I create a .avci file?

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

What is the relationship between .avci and the image/avci MIME type?

image/avci is the media type identifier used for .avci files during network transfer (for example in the HTTP Content-Type header).

Sources & standards

Updated 2026-09-13

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