Local only: Conversion runs in your browser; files aren't uploaded.
Support: Requires AVIF decoding in your browser. If unavailable, try a different browser or use the examples.
Quality: 0.8-0.9 is a good balance. Lower saves size, higher keeps detail.
Transparency: JPEG doesn't support alpha. This tool fills transparency with your chosen background color.
Resize: Set width or height (or both). If one is blank, aspect ratio is preserved automatically.
Color: Canvas export uses sRGB. Embedded profiles are typically not preserved.
Privacy: Everything happens locally-no uploads, no tracking here.
Troubleshooting
"AVIF decode failed": Your browser may not support AVIF or the file is malformed.
Huge images can exhaust memory. Try resizing down (e.g., max side 4096 px).
CORS can block external images. Use local files or the built-in examples.
Cookies & privacy
Utilities Bunker uses necessary cookies to run the site. Optional cookies help remember preferences,
measure usage, and improve the platform. You can change your choices any time.
Privacy Policy.