PNG to JPG
Make a JPEG from a PNG.
About this tool
PNG is a lossless still-image format that often carries a transparent background. Many email clients, printers, and older content systems still expect JPEG. This page turns a PNG into a JPEG so you can attach or upload it where PNG is refused.
JPEG cannot store alpha. Pixels that were transparent in the PNG become an opaque background in the JPEG. If you later need a lossless copy with sharp text, keep the original PNG; this tool is for compatibility, not for restoring detail that JPEG will discard.
The browser decodes the PNG onto a canvas and encodes a JPEG at the quality you pick. The file is not uploaded. Images over 50 MB or 32 megapixels are rejected so the tab is less likely to crash. Very wide or tall pictures may be scaled to the canvas edge (8192 px, or 4096 on older iOS).
How to convert PNG to JPG
- Choose a PNG still. The file is read in this tab.
- Optionally lower JPEG quality if you want a smaller file.
- Convert. A note appears if the image had to be scaled to fit the canvas.
- Download the JPEG (transparency will already be gone).
50 MB and 32 megapixels are safety caps for the browser, not a paid upgrade. Animated PNG is not a sequence here — you get a still JPEG. One file at a time.
FAQ
- Does the PNG leave my computer?
- No. The PNG is read in this tab and drawn on a canvas. ConvertWarp never receives the file bytes.
- What happens to transparent pixels?
- JPEG has no alpha channel, so transparency is flattened. Use PNG to WebP or keep the PNG if you need a see-through background.
- Will JPEG look worse than the PNG?
- Often slightly, especially on screenshots and text. Quality around 0.92 is a common compromise. Lower it only if file size matters more than edges.
- Can I use the JPEG commercially?
- You keep the rights you already had in the PNG. ConvertWarp does not claim the output. You are responsible for what you publish.
- Why was my image scaled?
- Some browsers cannot draw extremely large canvases. The long edge is fitted so encoding can finish instead of crashing the tab.
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