Filewhisk

JPG to AVIF Converter

This JPG to AVIF converter typically produces noticeably smaller files than JPEG at a quality level that looks the same to the eye. Drop a JPG, adjust the quality if needed, and download — everything happens in your browser, so the photo is never uploaded.

No upload No file size limit No sign-up Free

Drop JPG images here

or click to choose — other formats work too

Convert to

JPG has no transparency channel, so transparent areas must be filled with a colour.

Why convert a JPG to AVIF

AVIF is a newer image format built on the AV1 video codec's compression, and it does a genuinely better job than JPEG at the same visual quality — typically 30–50% smaller, depending on the photo. Smooth, low-detail images compress the most dramatically; busy, high-detail or already-noisy photos see a smaller gain, since there's less redundancy for either format to exploit.

For a website, that difference is a direct page-speed win: the same photo, noticeably smaller, means faster loading with no visible quality cost.

What you lose: mostly nothing, with one caveat

At the quality settings offered here, AVIF looks the same as the JPG it came from in normal viewing. It's still a lossy format below maximum quality, same as JPEG, but it tends to hold detail better than JPEG at an equivalent file size — which is the entire point of switching.

The one real caveat is encoding time and compatibility, not image quality. AVIF takes noticeably longer to encode than JPEG or WebP, because AV1's compression is more computationally intensive. And while every current browser (Chrome, Firefox, Safari, Edge) displays AVIF natively, some older image editors, phone galleries and niche platforms haven't added support yet. If a file needs to open reliably in software you don't control, keep a JPG copy alongside it.

Choosing a quality setting

SettingWhen to use it
Maximum (95%)Archival copies, or a source photo you'll edit further later
High (85%)The sensible default for most photos - hard to distinguish from the original
Medium (75%)Web images where load speed matters more than pixel-perfect detail
Small file (60%)Thumbnails, previews, anywhere the image is displayed small

Because AVIF already compresses more efficiently than JPEG, a given quality percentage tends to look better on AVIF than the same number would on a JPEG - you can often drop a step lower than you're used to and still not see a difference.

Converting a batch

Drop in several JPGs at once and each one is converted independently, then bundled into a single ZIP for download. A mix of photo sizes and subjects in the same batch is fine - there's no requirement that they be related or similar.

This tool tests whether your specific browser can actually encode AVIF before offering it - some older browsers can display AVIF but not produce it. If AVIF isn't available, the option is disabled rather than silently handing back the wrong format.

One conversion, not a chain

Convert from the original JPG rather than from a copy that's already been re-compressed elsewhere. Each lossy re-encode - JPG to something, back to JPG, then to AVIF - compounds quality loss beyond what a single conversion from the source would produce. If you have the original file, start from that.

Everything happens in your browser using the canvas API. The photo is never uploaded to a server, there's no account or sign-up, and no file size or count limit beyond what your own device can handle. As a side effect of re-encoding through canvas, EXIF metadata (camera details, GPS) does not carry over - keep the original if you need that data later.

Frequently asked questions

How much smaller is AVIF than JPG?

Typically 30-50% smaller at a quality level that looks the same, though the exact number depends heavily on the specific photo - images with fine detail or noise compress less dramatically than smooth, simple ones. Try the medium or high quality preset first and compare the file size shown against the original.

Will AVIF images work everywhere I use JPG?

Almost everywhere now - every major browser (Chrome, Firefox, Safari, Edge) supports displaying AVIF. The exception is older software: some image editors, older phone galleries, and a handful of platforms that haven't added AVIF support yet may not open it. If you need guaranteed universal compatibility - printing services, certain older apps - keep a JPG copy alongside the AVIF.

Why does AVIF take longer to convert than other formats?

AVIF uses the AV1 video codec's intra-frame compression, which is computationally heavier than JPEG's. The trade-off is deliberate: more encoding effort in exchange for a meaningfully smaller file. For a handful of photos the difference is barely noticeable; for a large batch, expect it to take longer than converting the same batch to WebP.

Does converting to AVIF lose quality?

At the quality settings offered here, no visible difference from the original in normal viewing. AVIF is lossy at less than maximum quality, same as JPEG, but tends to preserve detail better than JPEG at an equivalent file size - which is the entire reason to use it.

Can I convert several JPGs at once?

Yes - drop multiple files and they're all converted in one pass, with a single ZIP download for the batch. Each file converts independently, so a mix of photo sizes and content in the same batch is fine.

Is my photo uploaded to convert it?

No. The conversion happens entirely on your device using the browser's canvas API - nothing is sent to a server. There's no account, no sign-up, and no file size limit beyond what your device can handle.

Compress Image to Target Size Hit an exact KB target for uploads and forms. Resize Image Exact pixels or a percentage, with aspect ratio locked. Convert Image Format PNG, JPG, WebP and AVIF, in both directions. Rotate Image Quarter turns, free angles and mirror flips. Crop Image Drag the frame, or type exact pixel values. Circle Crop Image Round avatars with a real transparent background.