Q. Which formats are supported?
Input: most formats. Output: PNG, JPEG, WebP. AVIF support varies by browser.
Q. Why WebP?
25-35% smaller than JPEG, 26% smaller than PNG, same visual quality. All modern browsers support it.
Q. How do I use the quality slider?
For JPEG/WebP, 0-100. 80-90 cuts size dramatically with no visible quality loss. PNG is lossless, so the slider does nothing.
Q. Bulk conversion?
Yes — drag-and-drop many files, batch-convert, download as ZIP. 100+ files work.
Q. Are my images uploaded?
No — Canvas API runs everything locally, safe for personal or sensitive images.
Q. Can it handle huge images (50MB+)?
Bounded by browser memory. 4K photos (20-30MB) fine; 8K+ may run out. Don't batch too many at once.
