You saved an image from a website, went to open or upload it, and something refused to play along. Chances are the file is an AVIF, a newer image format that the web has embraced but plenty of everyday apps still trip over. The good news is that converting an AVIF file to JPG takes seconds, and you almost certainly already have the right tool on your computer or phone. This guide walks through every option, fastest first, plus how to batch convert a folder of them and when you are better off leaving the AVIF alone.
What is an AVIF file, and why convert it?
AVIF stands for AV1 Image File Format, a modern format that squeezes photos into far smaller files than JPEG at the same quality, which is why so many websites now serve their images this way (MDN). The catch is that support is not universal yet. Some older photo editors, design tools, printers and content systems do not recognise an AVIF, so when you need to email a photo, drop it into a document, or upload it somewhere fussy, converting to the universally accepted JPG is the simplest fix. If you are searching in another language, terms like "abrir avif" or "avif datei offnen" point to the same task, and every method below works regardless of where you are.
How to convert AVIF to JPG on Windows
Recent versions of Windows 11 and Windows 10 can open AVIF files out of the box, so you usually do not need to install anything (Microsoft Support). The most reliable method uses Paint, which ships with Windows.
- 1.Right-click the AVIF file, choose Open with, and select Paint.
- 2.Click File, then Save as, then choose JPEG picture.
- 3.Pick a location, give the file a name, and save. You now have a JPG alongside your original.
The Photos app works the same way: open the image, use the three-dot menu, and choose Save as to export a JPG. If Windows shows a broken thumbnail or refuses to open the file at all, your version may predate AVIF support, in which case the browser method below sidesteps the problem entirely. For more on opening these files, see our guide to viewing AVIF files on Windows and Mac.
How to convert AVIF to JPG on a Mac
Mac users have the easiest path of all, because Preview, the built-in image viewer, handles AVIF and exports to JPEG natively. There is no need for an AVIF converter app on Mac when the operating system already does the job.
- 1.Double-click the AVIF file so it opens in Preview.
- 2.Choose File, then Export, in the menu bar (Apple Support).
- 3.Set the Format to JPEG, drag the Quality slider where you want it, and click Save.
If you convert files often, set up a Quick Action so a JPG is one right-click away. Open the Shortcuts app, create a new Quick Action that takes image files, add the Convert Image step set to JPEG, then save it to Finder. From then on you can right-click any AVIF, choose your action, and get a JPG without opening anything. That single setup turns a recurring chore into one click.
How to convert AVIF to JPG on iPhone or iPad
On iOS the steps depend on where the AVIF lives. If you downloaded it through Safari, it usually lands in the Files app or your Downloads folder. From there you have two simple options. The first is to open the file, tap the Share icon, and send it to a trusted converter app or a browser tool, then save the JPG back to Photos or Files. The second, which works well for a quick one-off, is to open the image full screen and take a screenshot; the screenshot saves as a standard format your apps will accept, though you lose a little quality and any transparency.
For anything more than the occasional file, a browser converter is the cleaner choice on a phone because there is nothing to install and nothing to clutter your device. Open the converter in Safari, choose the AVIF, and download the JPG straight to Files. It is the same workflow whether you are on an iPhone, an iPad, or an Android phone.
Converting AVIF to JPG online (and a privacy caution)
Online converters are popular because they work on any device with a browser and ask nothing of you beyond dropping in a file. There is one important thing to check before you use one: where your image goes. Many online tools upload your file to a remote server to do the conversion, which is fine for a holiday snap but a poor idea for anything private, such as a contract scan, a screenshot with personal details, or a client photo you are not free to share.
This is exactly why we built our free VikiAVIF converter to run entirely in your browser. The conversion happens on your own device, so your image is never sent to a server, never stored, and never seen by anyone else. You can convert AVIF instantly in your browser, drop in one file or several, and download clean JPGs in seconds. If you do choose a different online tool, read its privacy terms first and avoid uploading anything you would not be comfortable handing to a stranger.
If you are not sure which route suits your device, the table below sums up the quickest method for each platform, the tool you already have, and what to watch for.
| Platform | Quickest method | Built-in tool | Watch for |
|---|---|---|---|
| Any device | VikiAVIF browser converter, nothing to install | Web browser | Nothing, the file never leaves your device |
| Windows | Open in Paint, then Save as JPEG | Paint or Photos | Older versions may predate AVIF support |
| Mac | Open in Preview, then File, then Export to JPEG | Preview | Set the quality slider high before saving |
| iPhone or iPad | Share to a converter app or browser tool | Files app and Share sheet | A screenshot loses quality and transparency |
| Many files at once | Browser converter or Preview Export Selected Images | Preview on Mac, browser elsewhere | Work on copies so originals stay safe |
How to batch convert many AVIF files to JPG
Converting one file is easy; converting fifty calls for a smarter approach. For most people, a browser converter that accepts multiple files at once is the simplest answer: select the whole batch, let it process them, and download the lot. No software, no folders of leftover apps.
On a Mac, Preview can convert a batch in one pass. Select all the AVIF files in Finder, open them together in Preview, select every thumbnail in the sidebar, then choose File, then Export Selected Images, and pick JPEG. The Quick Action route described earlier also handles multiple files at once from the right-click menu. On Windows, the cleanest option for a large folder is still the browser converter, since it avoids installing anything and keeps every conversion local. Whichever you pick, work on copies if the originals matter, so a mistake never costs you the source files.
Keeping quality, and when not to convert at all
JPEG is a lossy format, which means every save throws away a little detail to keep the file small. A single conversion at high quality is fine for almost any everyday use, but two habits protect your images. First, export at maximum or near-maximum quality rather than accepting a low default. Second, avoid re-saving the same JPG over and over, because the loss compounds each time. Keep the original AVIF, and make your JPGs from it rather than from an earlier JPG.
It is also worth saying the quiet part out loud: for the web, you usually should not convert at all. AVIF exists because it loads faster and looks better at smaller sizes, which is a genuine win for page speed and Core Web Vitals. If you run a website, serving AVIF (with a JPEG fallback for older browsers) is the right call, and converting everything back to JPG would undo that benefit. We make the full case in AVIF: the future of web images. Convert to JPG when a person, printer or program in front of you cannot read the file, and keep AVIF everywhere it works.
Converting is the quick fix. If you would rather edit the file properly, opening AVIF files in Photoshop covers native support, the plug-in route and why the format hides under Save a Copy.
In short
How do I convert an AVIF file to JPG?
Key takeaways
- A browser converter is the fastest route and needs no software. The VikiAVIF tool runs in your browser, so the file never leaves your device.
- Windows and Mac both convert AVIF without extra apps: use Paint or Photos on Windows, and Preview with File then Export on a Mac.
- On iPhone, share the image to a converter app or browser tool, then save the JPG to Photos or Files.
- AVIF is genuinely better for the web. Convert to JPG only when an app, printer or recipient cannot read the file, and keep the AVIF original.