ImagePDF.Tools
Free JPEG to PNG Converter

Convert JPEG to PNG, nothing uploaded.

JPEG (Joint Photographic Experts Group) to PNG (Portable Network Graphics) conversion runs directly in your browser. No upload, no account, nothing leaves your device.

Processing securely on your device, no data sent to any server

Drop your images here

JPG · PNG · WebP · SVG

Privacy Note: We use your browser's hardware to process this file. Your image stays on your computer throughout the entire process, nothing is transmitted.
No upload·100% private·Instant

Free · No account required · No upload · Converts entirely in your browser

How it works

Done in three steps.

Drop your JPEG file

Drag your .jpeg file onto the zone or click to browse. Loads directly into browser memory. Nothing transmitted.

Set output to PNG

Your browser's built-in Canvas encoder converts the file to PNG locally. No network request is made for your file.

Save and done

The PNG file saves directly to your device. Close the tab and browser memory clears completely.

Why convert

When to use JPEG vs PNG

The most widely used format for photographs. Lossy compression produces much smaller files with minimal visible quality loss at 75-85 quality. A lossless raster format with full transparency support. Ideal for logos, icons, screenshots, and UI elements with sharp edges.

PropertyJPEGPNG
CompressionLossyLossless
TransparencyNoYes
Best forPhotographs, complex imagesLogos, icons, screenshots
Browser support100%100%

Websites and landing pages

Converting images to PNG reduces file size and improves page load speed, which directly affects Google Core Web Vitals.

Email and document attachments

PNG files are typically smaller and more compatible across email clients and document workflows than JPEG.

Social media and content

PNG format ensures your images display correctly across social platforms without unexpected re-encoding artifacts.

Design and development workflows

PNG is widely supported in design tools and browsers. Export assets in the right format for handoff without extra steps.

Privacy by architecture

Your files never leave your browser.

Most online tools upload your file to a server, convert it remotely, then send it back. This converter is architecturally different. Conversion runs via the browser's Canvas API on your own CPU. There is no server that receives your JPEG file. Not even temporarily.

No file data transmitted over the network at any point

No account, sign-in, or email required to use any feature

Closing the tab clears all data from browser memory completely

Browser-native Canvas API, same encoder used in Chrome and Firefox

Common questions

Questions answered.

Is my JPEG file uploaded to a server?
No. The conversion runs entirely in your browser using the Canvas API and WebAssembly. Your JPEG file never leaves your device at any point.
Will converting JPEG to PNG reduce image quality?
PNG uses lossless compression, so no image data is discarded. The file may be larger than the original JPEG, but pixel-perfect fidelity is preserved.
Does PNG support transparency?
Yes. PNG fully supports transparency (alpha channel). Transparent areas in your JPEG source will be preserved in the output.
Can I convert multiple JPEG files at once?
Yes, with no batch limit. Drop as many files as you need. All processing runs locally in your browser.
Is there a file size limit for JPEG to PNG conversion?
No. There is no file size limit. The only ceiling is your device's available memory. Very large files may take a moment longer to process.
Will the converted PNG file have the same dimensions?
Yes. Conversion does not change pixel dimensions. A 4000x3000 JPEG image remains 4000x3000 as a PNG file. Use the Resize Image tool to change dimensions separately.
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