How to Convert JPG or JPEG to AVIF Online
Follow these three simple steps to convert JPG and JPEG images to AVIF online. No software installation required.
Add JPG or JPEG Images
Select JPG or JPEG images from your device, choose a folder, or drag and drop your files into the converter.
Set AVIF Quality
Keep AVIF selected as the output format and adjust the quality if needed.
Convert and Download
Start the conversion, preview the AVIF results and their file sizes, then download the files individually or together as a ZIP file.
How Does the JPG to AVIF Converter Work?
The CompressFly JPG to AVIF converter turns JPG and JPEG images into AVIF files directly in your browser. Unlike online converters that require file uploads, CompressFly handles image conversion with modern browser technology. No files are sent to a server: everything is processed locally, individually or in bulk. Smart image conversion makes changing formats simple and free, with no signup required.
What "in your browser" means
- Your JPG and JPEG files are not uploaded to a server
- Conversion runs locally on your device
- Converted AVIF files are downloaded from your browser
Bulk JPG to AVIF Converter
Convert multiple JPG and JPEG images to AVIF in one batch. Add files or select an entire folder, apply the same AVIF quality setting, and download all completed files together as a ZIP file.
Bulk JPG to AVIF conversion runs directly in your browser. No account, credit card, or software installation is required.

Why Use CompressFly to Convert JPG to AVIF?
Fast JPG to AVIF Conversion
Convert JPG and JPEG images to AVIF directly in your browser without waiting for files to upload to or download from a server.
Batch JPG to AVIF Conversion
Convert multiple JPG images to AVIF at once, then download the completed batch as a ZIP file.
No Software Installation
Convert JPG to AVIF in your browser without installing desktop software or plugins.
Easy to Use
Convert JPG and JPEG images to AVIF in a few straightforward steps, with no technical knowledge required.
Preview Before Downloading
Review each converted AVIF image and its file size before downloading it to your device.
Private & Secure
Your JPG and JPEG images are processed locally in your browser and are not uploaded to a server.
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JPG to AVIF Converter FAQ
How do I convert JPG to AVIF online?
Convert JPG to AVIF online in three steps: 1. Add your JPG or JPEG images, or select a folder. 2. Keep AVIF selected and adjust the quality if needed. 3. Start the conversion, preview the results, and download the AVIF files individually or together as a ZIP file.
Is the JPG to AVIF converter free?
Yes. The JPG to AVIF converter is free to use. No registration or credit card is required.
Can I convert JPEG files to AVIF?
Yes. The converter accepts both .jpg and .jpeg files. JPG and JPEG refer to the same image format.
Why convert JPG to AVIF?
AVIF can offer smaller image files at similar visual quality, making it useful for website images. Smaller files can reduce the amount of image data visitors need to download.
Can I convert multiple JPG images to AVIF at once?
Yes. Add multiple JPG and JPEG images or select an entire folder, apply the same AVIF quality setting, and download the completed files together as a ZIP file.
How to convert JPG to AVIF without losing quality?
Choose the highest possible output quality setting.
Is there a file size limit, and are my JPG images uploaded?
Your JPG images are processed locally in your browser and are not uploaded to a server, so there is no server upload limit. The practical limit depends on your device's available memory and processing power, especially for very large images or batches.
Can I convert PNG or WebP images to AVIF here?
This page accepts JPG and JPEG images. For other source formats, use PNG to AVIF or WebP to AVIF.