Convert image
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Privacy: The image is decoded and re-encoded with the canvas API in your browser. It is not uploaded to ITCOH.
PNG ↔ JPG without an upload
Switch between PNG and JPEG for slides, forms, or email. JPEG quality is adjustable. PNG output is lossless relative to the pixels drawn on the canvas. For WebP or HEIC, use the dedicated converters.
Frequently asked questions
Is my image uploaded?
No. Conversion uses an in-browser canvas.
What happens to PNG transparency when saving JPG?
JPEG has no alpha channel. Transparent pixels are flattened onto white.
Can I convert JPG back to PNG?
Yes — use the JPG → PNG tab. It will not restore transparency that JPEG never had.
Are animated images supported?
No. This converts a single still frame.