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Supports JPG, PNG, WebP, and more
Higher settings usually retain more detail and can create larger files; lower settings apply stronger JPEG compression
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Flatten a PNG into an opaque JPEG for photographic delivery
PNG to JPG decodes one PNG in browser Canvas and exports a same-dimension JPEG. This is useful when a destination requires JPG or when a photographic PNG is unnecessarily large, but transparency and lossless PNG pixels cannot be carried into JPEG.
Good reasons to choose JPG output
- •Prepare an opaque photograph for a JPG-only upload field.
- •Reduce the delivery size of photographic content currently stored as PNG.
- •Create a broadly accepted copy while retaining the PNG master.
How to use this tool
- 1.Upload a browser-decodable PNG and review its transparent areas.
- 2.Choose JPEG quality from 10% to 100%, convert, then inspect the opaque background and high-contrast edges.
- 3.Download the JPG and compare its dimensions, appearance, and actual size with the source.
What Canvas changes
- The browser draws the PNG at its source width and height and exports image/jpeg.
- JPEG cannot encode alpha transparency; this implementation does not provide a background-color control.
- The selected 10% to 100% quality is passed to the browser JPEG encoder; when no value is supplied, it defaults to 90%.
Example: convert a transparent product image
A 1400 × 1400 PNG remains 1400 × 1400, but transparent pixels become opaque during JPEG export. Inspect the result before publishing; if a specific white or brand-color background is required, composite that background in an editor before conversion.
Information that cannot survive
- Transparency is permanently flattened in the JPG copy.
- JPEG recompression can add halos, blocks, or softened text and does not guarantee a smaller file.
- Quality controls encoder compression, not a guaranteed retained-detail percentage or target file size.
Handle common surprises
- Background looks wrong: add the intended solid background before exporting to JPG.
- Graphic edges look soft: keep PNG for logos, text, or flat-color artwork.
- JPG is not smaller: retain the smaller source or resize dimensions if the destination permits it.
Continue the workflow
Return to Image tools, or continue with a complementary tool:
Questions about this specific tool
What happens to transparent pixels?
They cannot remain transparent because JPEG has no alpha channel. Inspect the opaque result before using it.
Does conversion change pixel dimensions?
No. The Canvas width and height match the decoded PNG dimensions.
Will the JPG always be smaller?
No. Content and prior optimization matter; flat-color PNG graphics can already be efficient.
Is JPG appropriate for logos?
Usually not when sharp edges or transparency matter. PNG is generally the safer delivery format for that material.