Free tool

WebP/AVIF Quality Tester

Compare image quality and file size at different WebP/AVIF settings.

Best-effort AVIFSize statsInstant

100% Free to use
No credit card required
Works offline in your browser

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Why it helps

Pick the best quality

Compare output sizes and quality metrics quickly.

Browser-based

Runs locally with your browser's available encoders.

Quality

WebP/AVIF quality tester

Best-effort AVIF

or browse manually

Drag and drop your files here, or use the button to select files.

AVIF support: No

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How to use WebP/AVIF Quality Tester for Maximum Social Media Growth

The WebP/AVIF Quality Tester allows designers, marketers, and photographers to compare image quality and file size at different webp/avif settings. instantly in your browser. Maintain pixel-perfect quality and exact aspect ratios required for modern web displays and social feeds.

1. Select & Input

Upload your file or enter content directly in your web browser. 100% private and runs locally on your device.

2. Optimize & Format

Adjust settings, crop dimensions, or refine text tailored for social media algorithms and resolution standards.

3. Publish & AutoPost

Download your high-quality asset or push directly to Auto Poster AI to schedule automated posts across all channels.

Pick the best quality

Compare output sizes and quality metrics quickly.

Browser-based

Runs locally with your browser's available encoders.

Why Formatting Consistency Matters

Social media algorithms favor content that meets platform recommendations. Using optimized tools like WebP/AVIF Quality Tester helps prevent compression artifacts, aspect ratio distortion, and text cut-offs on mobile feeds.