JPG to AVIF Converter
Re-encode photographs as AVIF for smaller web delivery when your browser can write AVIF — privately, in your browser.
Encoded in your browser when AVIF writing is supported (modern Chromium). If encoding is unavailable, the converter explains and suggests WebP.
Choose a file or drag and drop
Drop your JPG file here or
Choose file · Drag & drop · Public file link
- Processed on your device
- No conversion file stored on our servers
- Maximum file size: 100 MB
Conversion runs in your browser. Files are not uploaded to Format Convertly servers.
Format comparison
JPG → AVIF
- Compression
- Lossy
- Lossy and lossless modes
- Transparency
- No alpha channel
- Can include alpha
This is a format comparison, not a live conversion preview. Convert a file above to see the real output.
Conversion Settings
Customize the output to match your needs.
Convert Quality
92%Resize Image (Optional)
Advanced settings
Additional Options
- Maintain aspect ratio
- Remove metadata (EXIF)Browser re-encoding writes a new file without the original EXIF block.
- JPG has no alpha channel. Converting to PNG does not remove the background or create transparency.
How to Convert JPG to AVIF
Open the JPG → AVIF converter
Open the JPG to AVIF converter on Format Convertly.
Add your JPG file
Add JPG photos in the browser dropzone.
Download AVIF
Wire JPG/WebP fallbacks in HTML or your image CDN if you still serve older clients.
Why Convert JPG to AVIF?
Private by design
JPG → AVIF runs in your browser. Files are not uploaded to a remote conversion queue.
Ready for the next step
Convert when a site, editor, or teammate expects AVIF instead of JPG.
Practical quality
AVIF: varies. Lossy targets trade size for speed — preview when it matters.
Transparency aware
AVIF can keep transparent pixels when the source supports them.
JPG vs AVIF
A quick side-by-side before you convert — deeper comparison lives on the full guide.
| Feature | JPG | AVIF |
|---|---|---|
| Compression efficiency | Good / familiar | Often better for photos |
| Transparency | No | Yes |
| Best for | Sharing everywhere | Optimized web delivery |
| Typical size | Small | Often smaller than JPG/WebP |
| Encode speed | Fast | Can be slower |
| Web support | Universal | Modern browsers |
| Fallback need | Rare | Recommended for legacy traffic |
Choose JPG when…
- Client deliveries and email
- CMS uploads that reject AVIF
- Quick edits in every photo app
- Mixed unknown audiences
Choose AVIF when…
- Performance-critical photo sites
- Greenfield apps on current browsers
- Teams already shipping next-gen images
- When WebP still feels too heavy
What happens to image quality?
Both JPG and AVIF are typically lossy. A second encode can add generation loss — preview when fidelity matters. AVIF can store transparency, but a flat JPG source has no alpha channel to recover. Conversion cannot invent missing transparency. AVIF is a raster image format, not a media container. JPG: JPEG splits images into blocks and discards high-frequency detail people notice less. Quality settings trade size for sharpness. Each re-encode can add generation loss — keep a master when you expect more edits. JPG is excellent for photos and weak for flat UI text. AVIF: AVIF uses AV1 intra frames for stills, often winning on photo compression versus JPEG and WebP. Encodes can be slower; decode is fine on modern devices. Always compare perceptual quality on hero images. Encoded in your browser when AVIF writing is supported (modern Chromium). If encoding is unavailable, the converter explains and suggests WebP.
Tip
Encode time can be higher than WebP — batch offline when possible.
Does AVIF support transparency?
AVIF can store transparent pixels — AVIF supports transparency (including alpha where the codec/container allows). Keep a format with alpha when you need soft edges or overlays.
AVIF format guide →Can converting JPG to AVIF restore lost detail?
No. JPG is typically lossy — detail already discarded cannot be rebuilt by converting to AVIF. You get a faithful copy of the current pixels.
JPG format guide →JPG · AVIF
Related converters JPG
Related converters AVIF
Frequently Asked Questions
More on quality loss: conversion quality guides · problem-solution guides
Does converting JPG to AVIF reduce quality?
It can — both sides are typically lossy. A careful encode may look similar; repeated re-encodes cause generational loss. Prefer converting once from the best master you have.
Can you recover quality after converting?
Not from a lossy output alone. Return to the original master (or a better source). Converting to a lossless format does not resurrect discarded detail.
What is generational loss?
Damage that stacks when you decode and lossy-encode the same file over and over (for example JPG→edit→JPG). Edit from masters and export delivery formats once.
Where can I learn more about conversion quality?
Browse Format Convertly’s Quality guides for topics like whether conversion reduces quality, JPG↔PNG myths, WebP/MP3/MP4 tradeoffs, recovery limits, and generational loss — each links to the right converter.
Can every browser create AVIF?
Not yet. Modern Chromium builds often can; others may decode AVIF but not encode it. Format Convertly checks support and will not silently save a fake .avif.
Is conversion private?
Yes. Images are decoded and encoded in your browser — nothing is uploaded to Format Convertly.
What is a JPG file?
JPG is a lossy raster image format optimized for photographs and complex color gradients. JPG/JPEG is still the default camera-share format: small files, universal decoding, and good enough quality for social and email. Avoid it for logos and screenshots with sharp text — use PNG or WebP instead.
What is a AVIF file?
AVIF is a modern image format based on AV1 compression with excellent size and quality. AVIF often beats JPEG and WebP on compression for photographs while supporting HDR and transparency. Browser support is now strong on current engines; keep a JPG/WebP fallback when you must support very old clients.
Ready to Convert Your Files?
JPG to AVIF privately in your browser.