THE FILE FIELD GUIDE
.avif

AVIF Image

Images

A container for AV1-coded images, supporting alpha and advanced color representation. Check support in editors and destination services as well as browsers.

What it is used for
Efficient web images and HDR imagery
What the file contains
Binary data
All sections, questions and sources

Content reviewed: · Editor:Kai

First: choose for your purpose

AVIF stores AV1-coded images and may include HDR, alpha or sequences. Browser support does not establish image-app/recipient support. Separate compatibility checks from delivery conversion.

Opening steps

Choose your environment or purpose to see its steps.

Desktop browser: inspect first

Useful comparison when an image app cannot open it.

  1. Open the saved AVIF in an updated browser.
  2. Inspect color, brightness, alpha and motion in another updated environment.
  3. Create PNG/JPEG for unsupported recipients and retain AVIF.
Windows / macOS: export with supporting GIMP

Check installed-version AVIF import support.

  1. Open a copy in an AVIF-capable GIMP build and review import/profile settings.
  2. Choose PNG for alpha or JPEG for a still photo; inspect HDR handling at the destination.
  3. Export separately and compare in the same environment for clipped highlights/color changes.
Mobile: OS and app support

Device generation alone does not guarantee every AVIF variant.

  1. Complete the download and use a supporting viewer/browser.
  2. Check support if unreadable and request a PNG/JPEG viewing copy.
  3. For forms, check converted color/dimensions as well as format/size.

Menu labels and support vary by app, OS and version. Preserve the original before making changes.

Troubleshooting by symptom

  • An older viewer may reject a downloaded AVIF. Re-download and compare in a supported browser.
  • HDR brightness/color can vary with display and app handling. JPEG conversion does not guarantee identical appearance.
  • Dark/washed-out image: inspect HDR, color management and bit-depth support in the same comparison environment.
  • Renamed image fails: confirm actual encoding with the producer and retrieve the original.
  • JPEG loses alpha/motion: these are format limits; choose output matching required features.

AVIF → PNG / JPEG

  1. Use File → Open in an AVIF-capable GIMP build; check build support if it is not recognized.
  2. Use File → Export As: choose PNG for a still image with alpha or JPEG for photographic compatibility, then compare color and dimensions.
  3. Check color, brightness, alpha, sequences, dimensions and metadata.

Alpha, HDR, wide gamut or sequences can be lost depending on output/settings. Keep the AVIF separately.

Checking HDR and color changes

Different dynamic-range/profile support can alter appearance; compare a standard delivery copy in the recipient environment.

Keep AVIF for color-critical work and inspect highlights, shadows, skin and text before repeated conversion.

Export settings and retained information

GIMP documents lossless/quality, pixel format, bit depth, profiles and metadata; not all choices have equal recipient support.

JPEG for photos and PNG for alpha are delivery copies, not complete replacements for AVIF sequences/HDR data.

Source for these steps:GIMP · Export Image as AVIF

Related-format differences

Related-format differences
Format / choicePurpose and preserved information
AVIFEfficient images with environment-dependent HDR/alpha support.
JPEGStatic photo sharing without alpha/sequences.
PNGStill alpha copy requiring color/depth/HDR checks.

Handling and security

Use updated software and review published metadata. Compression efficiency is distinct from safety.

Questions and answers

Are AVIF and HEIC the same?

No. Common HEIC uses HEVC; AVIF uses AV1 image coding.

Is AVIF always smaller than JPEG?

It depends on content, dimensions and quality settings; compare under equivalent conditions.

Does JPEG retain a transparent background?

Ordinary JPEG does not retain alpha. Use PNG or another alpha-capable output.

Does browser viewing guarantee Photos support?

App/OS support is separate; verify each environment.

Does AVIF→JPEG preserve identical color?

HDR, color management and quality can change it; compare source/output.

Format facts: name, steward and MIME type
Formal name
AV1 Image File Format
Steward / specification
AOMedia
MIME type
image/avif

Primary and official sources

  • StandardAV1 Image File Format — approved version

    Approved specification for the AVIF image container.

    AOMedia · Link checked:
  • Software documentationExport File

    Documents choosing an output format through File → Export As in GIMP.

    GIMP · Link checked:
  • Software documentationExport Image as AVIF

    Documents AVIF support and color, quality and metadata options.

    GIMP · Link checked: