Short answer
Use WebP as the practical default for modern sites. Test AVIF when file-size savings are worth extra compatibility checks.
Privacy behavior
For supported ConvertUnlimited tools, selected file contents are processed locally in your browser. The public site may load ads and analytics; use the privacy build for privacy-sensitive workflows.
Best next step
Choose the related tool below that matches your file type and output goal, then review the limitations before processing large or sensitive files.
Recommendation
Try AVIF for performance-sensitive pages where every kilobyte matters and you can test compatibility.
Use WebP when you want a strong balance between compression, speed, and broad modern support.
FAQ
Is AVIF smaller than WebP?
Often, but not always. Test with your own images and quality requirements.
Should I use AVIF or WebP by default?
WebP is usually the practical default. AVIF is worth testing when compression savings are critical.
Can browser tools convert AVIF?
Support depends on the browser and the specific conversion path.
Action
Start with AVIF Converter, then use the linked guides to verify behavior and choose the right format.
Review note
Comparison criteria reviewed: May 2026.