Free Converter
JPG to PNG Converter
Convert JPG images to PNG format instantly with high quality. Secure, fast, and completely free.
Drag & Drop JPG here
Supports up to 50MB
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Convert JPG images to PNG format instantly with high quality. Secure, fast, and completely free.
Supports up to 50MB
Converting JPG to PNG is one of the more common image format requests, but it is also one of the most misunderstood. JPG is lossy: every time the format encodes an image, it discards high-frequency information that the human eye tends to overlook, and that information cannot be recovered. Converting an existing JPG to PNG produces a lossless container around what is already a lossy bitmap, so you do not gain back any lost detail. What you do gain is a format that supports transparency, tolerates repeated edits without further degradation, and can be more reliably accepted by tools that reject JPG (Discord stickers, certain print pipelines, some game engine asset importers).
This tool decodes the JPG using the browser's built-in image decoder, draws the resulting bitmap onto an HTML5 canvas, and re-encodes that canvas as a PNG using DEFLATE-compressed lossless storage. The conversion happens entirely on your device — the file never travels to a server, and nothing about it is logged. The output PNG is byte-for-byte identical in pixel content to the decoded JPG, including any compression artifacts that were already present in the source.
If your goal is to remove JPG artifacts or to obtain a higher-fidelity image, format conversion alone will not help. The cleaner approach is to obtain the original uncompressed source — RAW from the camera, the editable Photoshop document, or a PNG export from the design tool — and convert that. Treat JPG-to-PNG conversion as a packaging change, not a quality improvement.
The two most common reasons are compatibility and editability. Some platforms — typing keyboard sticker libraries, certain merchandise print services, a number of older content management systems — only accept PNG. Converting locally is faster than negotiating with the upload form. PNG also tolerates repeated saves without quality loss, so if you plan to edit the image multiple times in a graphics tool before producing a final version, working in PNG between saves prevents generational JPG artifacts.
PNG also supports transparency, which is required for image overlays, logos placed against varying backgrounds, and any compositing work. JPG cannot represent a transparent pixel; converting to PNG is the first step toward adding transparency, although the JPG-to-PNG step itself does not add it. You will need a separate step (background removal, masking) to introduce alpha. This converter only changes the format wrapper.
The conversion is a single browser operation. No software install, no upload.
These are the situations where converting from JPG to PNG genuinely helps.
JPEG (ITU-T T.81) encodes images using an 8×8 block discrete cosine transform, scalar quantization keyed by a quality factor, and Huffman entropy coding. The format is patent-free as of 2017 and supported natively by every browser, OS, and camera in production. Decoding a JPEG yields a bitmap with the artifacts of its quality setting baked in.
PNG (RFC 2083) takes the decoded bitmap and stores it via filtered DEFLATE compression. Five filter types — None, Sub, Up, Average, Paeth — are tried per scanline; the encoder picks the one yielding best compression. PNG is lossless: encoding the same bitmap twice yields the same pixel values out, although the file bytes may differ depending on filter choices. The format also supports an optional 8-bit or 16-bit alpha channel and gamma metadata.