Interactive Split-Slider Image Quality & File Size Comparison
Compare image compression formats and quality levels using an interactive before-and-after split slider. Measurable byte savings with zero fake scores.
Key Features
- Interactive draggable split-screen divider showing before and after versions
- Side-by-side dual panel inspection mode
- 100% and 200% zoom controls for pixel-peeping compression artifacts
- Measurable byte comparisons: exact original size, processed size, and percentage saved
- Live re-compression on slider adjustments without lag
- Direct one-click download of the optimized comparison candidate
Supported Formats
WebP, JPG/JPEG, AVIF, PNG
How to Use
- Select an Image to Compare: Import any high-resolution photo or graphic into the workspace.
- Choose Format & Quality Target: Pick your test codec (WebP, JPG, or AVIF) and adjust the compression slider.
- Drag the Split Slider: Slide back and forth across fine details to inspect compression artifacts and clarity.
- Download the Chosen Version: Once you find the ideal balance of size and quality, download the optimized file directly.
Frequently Asked Questions
Are the quality scores simulated or real?
Imagic displays 100% real, measurable file sizes in bytes and exact percentage reductions calculated from genuine in-browser encoding passes. No invented scores.
Can I zoom in to inspect fine textures and text?
Yes. Use the 200% zoom button to inspect sharp edges, text clarity, and skin textures closely on both sides of the split slider.
Why should I compare WebP against JPG?
WebP often achieves 30% smaller file sizes than JPG at the same perceived visual quality. The comparison tool lets you prove this on your specific images.