ImagePDF.Tools
JPG to PNG Converter

Convert JPG to PNG. Lossless. Free.

Convert JPEG images to lossless PNG: perfect for graphics that need transparency or exact colour reproduction. Nothing uploaded.

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

Drop JPEG files here to convert to PNG

JPEG and JPG files supported

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
How it works

Three steps. Instant results.

Drop your JPEG

Drag and drop JPEG or JPG files onto the converter, or click to browse. No batch limit, convert as many files as you need.

Output format: PNG

The format is set to PNG automatically. PNG is lossless: no quality settings needed. Your image is exported exactly as-is.

Save your PNG

Your converted PNG saves directly to your device. Close the tab and browser memory clears completely. Nothing is stored or logged.

Why convert

When you need PNG quality.

PNG offers two things JPEG cannot: lossless quality and full transparency support. If either of those matters for your project, converting from JPG to PNG is the right move.

Logos with transparent backgrounds

If you have a logo as a JPEG and need to remove the white background for design work, converting to PNG first is the required step. PNG is the only format that supports true transparency.

Watermarks and overlays

Adding a semi-transparent watermark to photos requires a PNG source file. The converter gives you a PNG you can then use in Photoshop, Figma, or any design tool.

Design composites in Figma

Designers need PNG assets to layer correctly in design tools. Converting a JPEG to PNG ensures it can be positioned over other elements without a hard white background box.

Preserving quality through edits

JPEG re-encodes the image every time you save, introducing progressive artefacts. Working in PNG means subsequent saves do not degrade the image further.

Screenshots and UI assets

Screenshots captured as JPEG suffer from blocky compression artefacts around text. Converting to PNG gives you crisp text and sharp UI edges for documentation or presentations.

Icons and app graphics

App icons, favicons, and UI elements must be PNG to support transparency and render cleanly on any background colour. Convert your JPEG source files in one step.

Lossless output: what that means for your files.

When your JPEG is converted to PNG, the browser decodes it to raw pixels using the Canvas API, then re-encodes those pixels as a lossless PNG. No quality is lost in the conversion step itself. The result is a PNG that faithfully represents every pixel of the original JPEG, and will continue to do so no matter how many times you re-save it.

Because everything happens on your own CPU, your image never leaves your device. There is no upload endpoint, no server-side processing, and no risk of your files being stored or accessed by anyone else.

Common questions

Questions answered.

Why would I convert a JPG to PNG?
The most common reason is to enable transparency. PNG supports transparent backgrounds, while JPEG does not. If you need to overlay an image onto a different background, for a logo, a watermark, or a design composite, you need PNG. PNG is also lossless, so it does not introduce further compression artefacts when you edit and re-save.
Will converting JPG to PNG improve quality?
No. Converting a JPEG to PNG does not recover quality lost during the original JPEG compression. The PNG output is a lossless snapshot of the current JPEG, no better or worse in terms of pixel quality. But re-saving it as PNG means future edits and re-saves will not introduce additional JPEG degradation.
Is JPG to PNG conversion truly lossless?
The conversion step itself is lossless: no additional quality is lost when going from JPEG to PNG. However, any quality already lost during the original JPEG encoding is permanent and cannot be recovered. PNG will faithfully preserve whatever quality the JPEG currently has.
Will the PNG file be larger than the JPG?
Yes. PNG uses lossless compression, which means files are typically 2-4x larger than their JPEG equivalents for photographs. This is the trade-off for lossless quality and transparency support.
Can I add a transparent background after converting to PNG?
Not with this converter: it converts the format without removing backgrounds. Once you have the PNG, use a background removal tool like Adobe Express, Canva, or remove.bg to make the background transparent.
Why do designers prefer PNG over JPEG for UI work?
PNG is preferred for logos, icons, and UI elements because it supports transparency, preserves sharp text and edges without blurring, and never degrades on re-save. JPEG is preferred for photographs where file size matters more than lossless precision.
Is my image uploaded to a server?
No. The conversion runs entirely in your browser using the Canvas API. Your file never leaves your device.
Can I convert multiple JPGs to PNG at once?
Yes. Drop as many files as you need, there are no batch limits.
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