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Convertitive

JPG to PNG Converter

.jpg → .png

Convert JPEG images to Portable Network Graphicsentirely in your browser. The source file is decoded with the browser’s native image pipeline, rendered to a canvas, and re-encoded in the target format. Nothing is uploaded — Convertitive cannot see, log, or store the image you drop in. PNG is lossless, so the output is a pixel-exact re-encoding of the rendered canvas.

Conversion happens entirely in your browser. Your file never leaves this page.

How to convert JPEG to Portable Network Graphics

  1. Drop or pick your image

    Drag a .jpg file onto the upload box, or click to choose one from your device. Up to 25 MB.

  2. Pick PNG as the target

    PNG is already selected. It's a lossless format, so no quality setting is needed.

  3. Click Convert and download

    The browser renders your image onto a canvas and re-encodes it as PNG. The download button appears the moment the file is ready.

JPG vs PNG at a glance

JPGPNG
CompressionLossyLossless
TransparencyNoYes
Quality controlYesFixed
Typical usePhotographs, sharing, web heroesScreenshots, UI, icons, line art

Frequently asked questions

How do I convert JPG to PNG?
Drag your .jpg file into the upload box, leave PNG selected, then click Convert. The download button appears as soon as the new file is encoded.
Is the conversion lossy?
No. PNG is a lossless format, so the pixels of the rendered canvas are preserved exactly.
What happens to transparency?
Transparency is preserved end-to-end as long as both formats support it. PNG does support transparency.
Is my file uploaded anywhere?
No. Everything runs in your browser — the file never leaves your device. Convertitive cannot see, log, or store it.
What's the maximum file size?
25 MB. Larger images won't open here because the browser keeps them fully in memory. For very large photos, downsample first.
Will my image be resized?
No. The output has the exact same pixel dimensions as the source. Only the encoding changes.
Why is the output sometimes larger than the input?
Re-encoding does not always make a file smaller — the source image may already be near-optimal for its format. Try a lower quality setting if file size matters.
Which browser do I need?
Any browser released since 2020 supports all three formats. AVIF is not in the picker yet; we'll add it once Safari ships full encoder support.

About JPG and PNG

JPG .jpg

JPEG (.jpg, .jpeg) is the dominant lossy photo format on the web. It excels at compressing natural images with smooth gradients but cannot represent transparency. Quality settings between 75 and 90 are the sweet spot for visually indistinguishable compression. Each save loses a small amount of fidelity — never edit a JPEG repeatedly.

PNG .png

PNG is a lossless raster format with full transparency support. It's the right choice for screenshots, UI graphics, icons, line art, and any image that must be pixel-perfect. PNG files are typically larger than JPEG or WebP for photographs, smaller for graphics with large flat-colored regions.

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