Convert AVIF
to JPG.
Turn a file nothing will open into a small JPG that uploads anywhere - one image or a whole folder.
Processed in memory - never stored.
Why the image you saved is an AVIF
AVIF is a modern web image format built on the AV1 video codec. Sites serve it because it holds a photo at a fraction of the size of an equivalent JPG, and every current browser renders it happily. Then you save one, and it stops dead: older versions of Photoshop, Word and PowerPoint, most print and photo-lab uploaders, plenty of CMS media libraries, and any form whose accept list predates 2021. JPG is the format none of them argue with.
Squish decodes the AVIF and re-encodes it as a standard JPG. Drop in as many as you like - several convert at a time as they land, and Download all hands the batch back as one zip. Nothing to install, and nothing is kept afterwards.
Two things worth knowing first
AVIF supports transparency and JPG does not, so any transparent area is flattened onto white during conversion. Squish says so on the card rather than letting you find out later. If the image is a logo or a cutout that needs to stay transparent, use AVIF to PNG instead, which keeps the alpha channel and every original pixel.
The second is quality. AVIF is lossy and so is JPG, so this re-encodes an image that was already compressed once. Detail AVIF discarded is gone, and nothing here brings it back. What you control is how much more you give up: keep the quality slider high and the JPG will look the same at normal viewing size.
Common questions
- Will the JPG be bigger than the AVIF?
- Often yes, because AVIF is simply the more efficient format. You are trading size for compatibility. Turn the quality down, or set a target size, if that matters.
- The upload form has a size limit. Can I hit it exactly?
- Yes. Target size is on by default - just set your limit in KB and Squish searches for the highest quality that still lands under it, file by file. The 100KB target page explains how that search works.
- Will I still need this in a few years?
- Possibly not. Operating systems and the major editors have been adding AVIF support steadily, so the list of things that reject it keeps shrinking. Until the app or portal in front of you catches up, converting is faster than arguing with it.
- Can I resize at the same time?
- Yes - set a max width or height and each image is resized before encoding. EXIF orientation is applied so nothing comes out sideways, and metadata including GPS is stripped.
- What happens to my files?
- Processed in memory and never stored - nothing is retained once your converted file comes back. No signup, no watermark.