Why Convert JPG to PNG?
JPEG uses lossy discrete cosine transform compression, which degradation accumulates every time a file is saved. Converting JPG photos into PNG format stops further compression loss when performing graphical edits, text overlays, or software processing.
Frequently Asked Questions
How does the JPG to PNG converter work?
The converter decodes JPG pixel buffers into uncompressed 32-bit RGBA HTML5 Canvas frames, exporting clean PNG images directly inside your browser memory.
Are my photos sent to an external server?
No. The entire conversion runs 100% locally on your computer or mobile device. Your files never touch any remote server.
Does converting JPG to PNG add a transparent background?
No. JPG images do not store alpha transparency, so converting a solid JPG photo to PNG results in an opaque PNG image with identical background pixels.
Why convert JPG to PNG?
PNG is a lossless image format ideal for editing, adding text overlays, or preventing further compression artifacting when saving image edits.
Can I convert multiple JPG photos at once?
Yes. Drag and drop multiple JPG or JPEG files to execute fast batch conversions.
Does converting JPG to PNG increase file size?
Yes. Because PNG uses lossless compression, the exported PNG file size may be larger than the compressed source JPG file.
Can I use this tool on iPhone or Android?
Yes. The tool runs on modern mobile web browsers including iOS Safari and Chrome.
Is this JPG to PNG converter free?
Yes. ToolzTotal provides 100% free image tools with no signups, no subscriptions, and zero watermarks.
Sources & References
Related Calculators & Tools
Browse Image & PDF Tools →Resize images to custom dimensions or social media presets completely in your browser.
Compress JPEG, PNG, and WebP images client-side to reduce file size without quality loss.
Combine multiple PDF documents into a single file securely inside your browser.
Convert Apple HEIC/HEIF images to JPG or PNG formats 100% client-side with zero server uploads.