Compress AVIF Images Online — Free Browser Tool
Convert and compress to AVIF for the best compression ratio
AVIF delivers the smallest files of the formats here while keeping alpha and detail. Use it when modern-browser reach is fine (Chrome/Firefox/Safari 16.4+); otherwise WebP at the same quality is the fallback with wider support.
Drag and drop your images here
or click to browse files
Compression Settings
or click to browse files
How to Compress AVIF Images
Upload Images
Drag and drop your images or click to browse. Supports all common image formats.
Adjust Settings
Choose your desired quality level and output format. Preview changes in real-time.
Download Results
Download compressed images individually or as a batch. Your images are processed locally for privacy.
AVIF Compression Best Practices
Choose the right quality level
For AVIF images, quality level 80-85 often provides a good balance between file size and visual quality.
Use batch processing for multiple files
Save time by compressing multiple AVIF images at once with identical settings.
Preview before downloading
Always preview compressed images to ensure they meet your quality requirements before downloading.
Consider modern formats
For better compression, consider converting to WebP or AVIF formats which offer superior compression ratios.
AVIF format capabilities
Best for
- • photos and web images where size matters most
Watch out for
- • browser support gap on older devices (Chrome/FF only)
- • encoding is slower than WebP/JPEG
- • not ideal for UI assets with tiny text at very low sizes
Alternatives
- • WEBP: wider support with still-excellent compression
- • JPEG: maximum compatibility
AVIF compression test results
Encoded with the AVIF codec used by this tool. The lossless PNG baseline (input column) is the real source file; every output row is an actual encode.
| Source | Dimensions | Input | Output | Size | Saved | Observed tradeoff |
|---|---|---|---|---|---|---|
| Photo | 1280×960 | 3.7 MB | AVIF q70 | 297 KB | 92.1% | compression artifacts visible only in fine gradients; alpha preserved; encode is slowest |
| Photo | 1280×960 | 3.7 MB | AVIF q85 | 523 KB | 86% | excellent quality at small size; alpha preserved; encode is slowest |
| UI screenshot | 1280×800 | 142 KB | AVIF q70 | 1 KB | 99.2% | compression artifacts visible only in fine gradients; alpha preserved; encode is slowest |
| UI screenshot | 1280×800 | 142 KB | AVIF q85 | 1 KB | 99.1% | excellent quality at small size; alpha preserved; encode is slowest |
| Logo | 512×512 | 216 KB | AVIF q70 | 40 KB | 81.3% | compression artifacts visible only in fine gradients; alpha preserved; encode is slowest |
| Logo | 512×512 | 216 KB | AVIF q85 | 55 KB | 74.4% | excellent quality at small size; alpha preserved; encode is slowest |
AVIF Compression FAQ
What is AVIF compression?
AVIF compression reduces file size while maintaining image quality. Our tool uses advanced algorithms to optimize AVIF images for web use.
Is AVIF compression lossy or lossless?
AVIF supports both lossy and lossless compression. You can choose the compression mode that best fits your needs.
Does AVIF compression keep transparency?
Yes — AVIF preserves the alpha channel, so transparent regions stay transparent in the output.
How much can I compress AVIF files?
Typically, you can achieve 50-90% file size reduction depending on the original image and your quality settings.
Is my data secure?
Yes, all processing happens in your browser. Your images are never uploaded to our servers.