AVIF Converter - Convert Images to AVIF Online Free
Free AVIF converter. Convert images to AVIF, or AVIF to JPG, PNG and WebP. No signup needed.
Tool Interface
AVIF Converter
Convert images to AVIF and back. Free, private, no signup. Files never leave your browser.
Drag and drop images here
or
PNG, JPEG, WebP, GIF, BMP
Conversion Settings
Files
Results
AVIF delivers up to 50 percent smaller files than JPEG at similar quality. All processing happens locally in your browser.
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About This Tool
About This Tool
The AVIF Converter lets you convert images to the AVIF format and convert AVIF files back to PNG, JPEG, or WebP. AVIF is a modern image format that delivers up to 50 percent smaller file sizes than JPEG at similar visual quality, making it ideal for websites, sharing, and storage.
Every conversion runs 100 percent locally in your browser. Your images are never uploaded to any server, so the tool is fast and private by design. No signup, no watermarks, no file limits on conversions.
Key Features
- Convert to AVIF: Turn PNG, JPEG, WebP, GIF, and BMP images into compact AVIF files with an adjustable quality slider.
- Convert from AVIF: Change AVIF images back to PNG, JPEG, or WebP for maximum compatibility with older software.
- Batch conversion: Drop multiple images at once and convert them all in one go.
- Compression stats: See before and after file sizes plus the exact compression ratio for every file.
- ZIP download: Download converted files individually or grab them all as a single ZIP archive.
- Image preview: Every file shows a thumbnail preview with its pixel dimensions before conversion.
- Quality and effort controls: Fine tune AVIF output with quality (1 to 100) and encoding effort settings.
- Private by design: All processing happens on your device. Nothing is uploaded or stored.
How to Use
- Choose a mode: Select Convert to AVIF to shrink your images, or Convert from AVIF to change AVIF files into PNG, JPEG, or WebP.
- Add images: Drag and drop files onto the upload area, or click Choose Files to browse your device. You can add multiple files at once.
- Adjust settings: Set the quality slider to balance file size and visual quality. For AVIF output, pick an encoding effort: Fast, Balanced, or Best compression.
- Convert: Click Convert Now. The tool processes each image locally and shows the size savings.
- Download: Download files one by one, or click Download All as ZIP to get everything in a single archive.
Frequently Asked Questions
What is AVIF?
AVIF is a modern image format based on the AV1 video codec. It compresses images far better than JPEG or PNG while keeping high visual quality, which means smaller files and faster websites.
Why convert images to AVIF?
AVIF files are typically 30 to 50 percent smaller than JPEG at the same quality. Smaller images load faster on websites, use less mobile data, and take up less storage space.
Will AVIF images work everywhere?
All modern browsers support AVIF, including Chrome, Firefox, Safari, and Edge. For older software that does not open AVIF, use the Convert from AVIF mode to change files back to PNG, JPEG, or WebP.
Is there a file size limit?
Files up to 50 MB each are supported. Since processing happens in your browser, very large images may take longer on slower devices.
Are my images uploaded anywhere?
No. All conversion happens locally in your browser using WebAssembly. Your files never leave your device.
What quality setting should I use?
Quality 75 is a good default for AVIF, giving small files with excellent visual quality. Use higher values (85 to 95) for photography where detail matters, or lower values (50 to 65) when minimum file size is the priority.