AVIF to JPG
The newest format, converted to the one everything reads.
Nothing is uploaded
Drop files here, or click to choose
Accepts AVIF. No size limit, no sign-up.
AVIF gives the best compression of any widely deployed image format, and the worst compatibility outside a web browser. Converting to JPG trades the first for the second.
What AVIF is and why sites use it
AVIF stores images using AV1, a modern royalty-free video codec, wrapped in the same container family as HEIC. It typically beats both JPEG and WebP at equivalent visual quality, sometimes substantially, and it supports transparency, wide colour gamut and high dynamic range.
Browser support arrived over several years — Chrome in 2020, Firefox shortly after, Safari with version 16 — which is why sites now serve it confidently. Save an image from one of those sites and you may well get a .avif.
Why the file is a problem in practice
Support outside the browser lags badly. Many desktop image viewers, older versions of design software, office suites, print-shop upload forms and content management systems either cannot decode AVIF or reject the extension on sight.
AVIF is also comparatively slow to decode, which is invisible on a web page but noticeable when a file manager tries to generate thumbnails for a folder full of them.
What the conversion costs you
The image is decoded and re-encoded, so this is a second lossy pass and a little quality is lost. At the default setting of 85 the difference is not visible under normal viewing.
The file will usually get bigger, because JPEG is a much less efficient format. If the original AVIF has a transparent background, that transparency cannot be represented in JPG and will be filled with solid colour — convert to PNG instead if that matters.
Decoded by your own browser
Because your browser already supports AVIF, no decoder needs to be downloaded — the file is read natively and re-encoded to JPEG using MozJPEG compiled to WebAssembly.
Nothing is uploaded, so there is no size cap, no hourly quota, no watermark and no account. Check the Network tab in DevTools while converting to confirm it.
Frequently asked questions
Why did I end up with an AVIF file?
Because the website you saved it from serves AVIF to browsers that support it. AVIF compresses better than JPEG or WebP, so sites use it to load faster.
Will the JPG be bigger than the AVIF?
Usually yes, often substantially. JPEG is a far older and less efficient format. That is the trade for universal compatibility.
My AVIF has a transparent background. What happens?
JPG cannot store transparency, so it will be filled with solid colour. Use AVIF to PNG instead if you need to keep the transparent background.
Does converting reduce quality?
Slightly — the image is decoded and re-encoded. At the default quality of 85 it is not visible in normal viewing.
Is my file uploaded?
No. Your browser decodes the AVIF natively and the JPEG encoder runs in the same tab. No server sees the image.
Other tools
- JPG to PDFPhotos in, one PDF out — without uploading anything.
- PDF to JPGEvery page becomes an image, at the resolution you pick.
- PDF to PNGLossless pages, transparency kept.
- Merge PDFSeveral documents in, one document out.
- Split PDFOne file per page, without handing the document over.
- HEIC to JPGYour photos never leave your device.
- Compress ImageSmaller files, without handing them over.
- WebP to JPGFor every program that still refuses to open .webp.
- PNG to JPGMuch smaller files — when the image is a photograph.
- JPG to PNGLossless from here on — but read this first.
- HEIC to PNGWhen you need transparency or a lossless copy.
- JPG to WebPMeaningfully smaller at the same quality setting.
- PNG to WebPThe only common target that keeps transparency and gets small.
- WebP to PNGFor transparency plus software that will not open .webp.
- AVIF to PNGWhen the AVIF has transparency you cannot afford to lose.
- GIF to PNGOut of 256 colours and 1-bit transparency.
- BMP to JPGBMP stores every pixel raw. The savings are enormous.
- SVG to PNGVector to pixels — a one-way trip, so choose the size well.
- Compress JPGMozJPEG, running on your own processor.
- Compress PNGGenuinely lossless. Not a palette reduction in disguise.
- Compress WebPAlready the efficient format — squeeze it further.
- QR Code GeneratorStatic codes. No redirect, no tracking, no expiry.
- Word CounterCounts CJK properly. Your text never leaves the page.
- PNG to SVGReal paths you can edit — not a bitmap hidden inside an .svg file.
- What Is My IP AddressEverything on one page. We do not log any of it.
- Internet Speed TestFour numbers, measured honestly, with the method shown.