Free JPG to PNG Converter
Convert JPEG images to PNG format instantly — no upload, no account, no limits.
JPG to PNG conversion switches from lossy to lossless compression. PNG preserves every pixel exactly, making it ideal for graphics, logos, screenshots and images with text where compression artefacts would be visible. PNG also supports full transparency, which JPG does not. Conversion runs entirely in your browser using the Canvas API — your image never leaves your device.
Click to select or drag & drop your JPG files here
JPG, JPEG supported · Multiple files allowed · No file size limitHow it works
Select your JPGs
One or several, at any size.
Redrawn losslessly
The image is decoded and re-encoded as PNG, which discards nothing further.
Download the PNGs
Larger files than the JPGs, with no additional compression damage.
When Should You Use PNG Instead of JPG?
PNG (Portable Network Graphics) is a lossless format, meaning no image quality is lost during compression. It supports transparency (alpha channel), making it ideal for logos, icons, screenshots and any image where sharp edges and text need to remain crisp. JPG (JPEG) is a lossy format optimized for photographs — it produces smaller file sizes but degrades quality slightly with each save.
Convert JPG to PNG when you need to preserve maximum quality, add transparency, or use the image in graphic design software. Note that PNG files are typically larger than JPG — if file size matters more than quality, consider keeping the JPG format.
Converting to PNG Does Not Undo JPEG Compression
This is the single most common misunderstanding about format conversion, and it is worth being direct about it. JPEG compression is lossy and destructive: when a photo is saved as JPEG, the encoder divides the image into 8×8 blocks, transforms each one, and discards the high-frequency detail your eye is least likely to miss. That information is gone from the file. Converting the result to PNG stores whatever pixels remain without further loss — but it cannot reconstruct what the JPEG encoder threw away.
So a JPEG with visible blocking around text, or halos along high-contrast edges, keeps those artefacts exactly after conversion. The PNG is a faithful, lossless copy of a damaged image. What you gain is that no further damage occurs: every subsequent save is lossless, which is why PNG is the right working format if you are about to edit and re-save repeatedly. Each JPEG re-save compounds the previous generation's losses.
Expect the file to grow, often by two to five times. PNG uses DEFLATE, a lossless scheme that compresses repeated patterns well but cannot approach JPEG's ratios on photographic content, where almost every pixel differs slightly from its neighbours. The exception is synthetic imagery — screenshots, diagrams, logos, flat-colour graphics — where large uniform regions compress extremely well and PNG can genuinely beat JPEG on both size and quality. That, rather than any hope of quality recovery, is the real reason to convert.