JPG to AVIF Converter
Shrink JPG photos 30–50% with AVIF, the AV1-based format built for fast web pages — same look, free, no signup.
up to 50 files at once
auto-delete in 24h · no signup · no watermark
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How to convert JPG to AVIF online
- Click "Browse Files" or drag your JPG file into the converter above (up to 200 MB free, 500 MB with an account).
- The target format is preset to AVIF — adjust quality options in the picker if you need to.
- Hit "Convert". Your file uploads over an encrypted connection and converts automatically in the cloud — nothing to install.
- Click the green "Download" button to save your AVIF file. The original is deleted immediately and the result auto-deletes after 24 hours.
That is the entire flow — no email address, no software install, no watermark on the output. The page you are reading handles JPG to AVIF from start to finish.
What's the difference between JPG and AVIF?
JPG (Joint Photographic Experts Group image) and AVIF (AV1 Image File Format) solve different problems: JPG is a lossy compression format built for photos, web images, email attachments, while AVIF is a lossy compression format whose strength is next-gen web images, photography portfolios. In practice you will meet JPG when dealing with photos, web images, email attachments, and reach for AVIF when you need next-gen web images, photography portfolios — the table below compares them point by point.
| JPG | AVIF | |
|---|---|---|
| Full name | Joint Photographic Experts Group image | AV1 Image File Format |
| Developed by | Joint Photographic Experts Group | Alliance for Open Media |
| Released | 1992 | 2019 |
| Compression | Lossy compression | Lossy compression |
| Typical use | photos, web images, email attachments | next-gen web images, photography portfolios |
| File extension | .jpg | .avif |
| MIME type | image/jpeg | image/avif |
Why convert JPG to AVIF?
JPG (or JPEG) is a lossy raster image format released in 1992 by the Joint Photographic Experts Group. It compresses photographs into small files by discarding visual detail the eye rarely notices, and is the most widely supported image format on the web, in cameras, and across operating systems. Here is when AVIF is the better choice:
- →AVIF is the most efficient mainstream image format — about half the size of JPG at equal quality.
- →HDR and 10-bit color support make it future-proof for photography.
- →It runs in the cloud — 10 free conversions a day with files up to 200 MB (20/day and 500 MB with a free account) — so even a phone or an old laptop converts at full speed.
Before you convert: three quick tips
- ●If your image has a transparent background, pick a target that supports it (PNG, WebP, AVIF); converting to JPG fills transparency with white.
- ●For web use, the modern formats (WebP, AVIF) save the most bandwidth; for maximum compatibility, JPG and PNG remain the safe choices.
- ●Keep your original JPG — conversion never modifies it, and if you later need a different target format, starting from the original always gives the best quality.
AVIF conversion settings explained
The quality setting (1–100) controls how aggressively AVIF compresses. Filevo defaults to 85 — the golden value for web and everyday sharing: compression artifacts are essentially invisible while files stay around half the size of quality 100.
How to choose: 75–80 for web images where every kilobyte counts; 85 (default) for almost everything; 95+ for print or images you plan to edit further. Note that quality 100 is still not lossless — choose PNG or TIFF as the target if you need true lossless output.
How the conversion works
Filevo converts JPG to AVIF with libvips, the high-performance open-source image engine that powers the Sharp library used across the industry. libvips processes images as a stream with a tiny memory footprint, so a typical photo converts in under a second. The work happens on our servers, not your device — a phone or an aging laptop converts just as fast as a workstation.
Why convert JPG to AVIF?
AVIF is the most efficient mainstream image format available — converting a JPG typically cuts 30–50% off the file at the same perceived quality. On a real mobile connection, the gap between a 320 KB JPEG and a 110 KB AVIF of the same hero image is the difference between a page that feels fast and one that doesn’t. If you care about load times, Core Web Vitals or bandwidth, JPG to AVIF is one of the biggest single wins you can make on image weight.
How AVIF compresses so much harder
AVIF is a still image wrapped around the AV1 video codec — the same compression Netflix and YouTube use to push video at lower bitrates. It applies decades of perceptual coding research to discard data the human eye doesn’t notice, and it also supports HDR and 10-bit color. The catch is encoding time: AVIF is far slower to encode than JPG or WebP. That work happens in the cloud here, so your device isn’t taxed and you just download the finished, much smaller file.
Serve AVIF with a fallback
One honest caveat: AVIF needs a recent browser. It shipped in Chrome in 2020, Firefox in 2021 and Safari in 2022, so support sits around 94% today — excellent, but not universal. For a production website the standard pattern is a <picture> element that serves AVIF to browsers that support it and falls back to WebP or the original JPG for older ones. That way you get the size win for most visitors with zero risk for the rest.
Convert JPG to AVIF on any device
On Windows or Mac: drag the JPG straight from Explorer or Finder into the converter above. On iPhone or Android: open this page in your browser, tap Browse Files and pick the JPG — no app required. The slow AVIF encode runs in the cloud, so even on a phone you just wait a moment and download a much smaller file.
What is JPG?
JPG (or JPEG) is a lossy raster image format released in 1992 by the Joint Photographic Experts Group. It compresses photographs into small files by discarding visual detail the eye rarely notices, and is the most widely supported image format on the web, in cameras, and across operating systems.
| Full name | Joint Photographic Experts Group image |
| Developer | Joint Photographic Experts Group |
| Released | 1992 |
| MIME | image/jpeg |
What is AVIF?
AVIF is an image format released in 2019 by the Alliance for Open Media, built on the AV1 video codec. It achieves roughly 50% smaller files than JPG at the same quality, supports HDR, wide color gamut, and transparency, and is now supported by all major browsers.
| Full name | AV1 Image File Format |
| Developer | Alliance for Open Media |
| Released | 2019 |
| MIME | image/avif |
Filevo vs other JPG to AVIF converters
An honest comparison — CloudConvert and Convertio are capable tools; here is where Filevo differs:
| Filevo | CloudConvert | Convertio | |
|---|---|---|---|
| Free tier | 10/day | 10/day | 10 credits/day |
| No signup needed | Yes | Yes | Yes |
| Watermarks | None | None | None |
| Ads on free tier | No | No | Yes |
| Pricing model | 1 file = 1 credit, shown upfront | Per conversion minute | Credit packs |
Privacy & file security
Filevo deletes your uploaded JPG file immediately after conversion and removes the converted AVIF within 24 hours. Everything travels over TLS encryption, processing is fully automated with zero human access, and your files are never used for AI training. See our Privacy Policy for details. Privacy Policy →
JPG to AVIF converter FAQ
How do I convert JPG to AVIF for free?
Drop your JPG file into the converter at the top of this page, confirm AVIF as the target, click Convert, and download the result. It is genuinely free: 10 free conversions a day with files up to 200 MB (20/day and 500 MB with a free account), no watermarks, no software to install, no account required.
Is it safe to convert JPG files online?
Yes. Transfers are TLS-encrypted end to end, and conversion is fully automated — no human ever sees your files. Your uploaded JPG is deleted the moment conversion finishes, and the converted AVIF auto-deletes after 24 hours (you can delete it sooner). We never use your files for AI training or share them with anyone.
Will I lose quality converting JPG to AVIF?
Both JPG and AVIF are lossy formats, so re-encoding introduces a small generational loss. Filevo defaults to high quality settings that keep it imperceptible for typical content — just avoid converting the same file back and forth repeatedly.
How long does JPG to AVIF conversion take?
Usually seconds. The conversion itself takes from under a second to a few seconds for images and audio — most of the wait is the upload, which depends on your connection speed. Since processing happens in the cloud, your device stays fast, and you can run several conversions in parallel.
Can I convert JPG to AVIF on iPhone or Android?
Yes. Filevo runs entirely in the browser, so it works the same on iPhone, Android, tablets, and computers — no app to install. On mobile, tap Browse Files to pick from your photos or files.
What's the maximum file size?
Anonymous conversions accept files up to 200 MB; a free account raises that to 500 MB. Paid plans go from 1 GB up to 10 GB per file, with higher daily limits and priority queues.
Can I convert multiple files at once?
Yes. Drop up to 50 files at once — they roll through the queue automatically. Pick a target format per file or set one per category, then download results individually or grab everything as a single ZIP.
Does converting change my image dimensions or resolution?
No. Converting JPG to AVIF keeps the original pixel dimensions — a 4000×3000 image stays 4000×3000. Only the encoding and the file size change.
Does JPG support transparency?
No. JPG has no alpha channel — transparent areas are filled with a solid background (Filevo uses white) during conversion. If you need transparency, convert to PNG or WebP instead.
How much smaller is AVIF than JPG?
Typically 30–50% smaller at the same perceived quality — roughly half the bytes for the same-looking image. The exact saving depends on the photo, but AVIF compresses harder than both JPG and WebP, which is why it’s the top choice for web performance.
Will AVIF display in every browser?
In around 94% of them — Chrome, Firefox, Edge and Safari 16+ all support AVIF. Older browsers don’t, so for a website use a <picture> element with a WebP or JPG fallback. For personal use on a modern device, AVIF just works.
Does converting JPG to AVIF lose quality?
It’s a re-encode between lossy formats, but AVIF is so efficient that it holds the same perceived quality at far smaller size — AVIF at quality 50 looks comparable to JPG at 80. At normal viewing the AVIF looks the same as the JPG while weighing much less.
Whether you need next-gen web images, photography portfolios or simply a file that works where JPG will not open, the converter above turns JPG into AVIF in seconds — free, private, and with nothing to install. Bookmark this page for the next time a JPG file refuses to cooperate.
Last updated: 2026-07-27