Convert PNG to JPG Online
Convert PNG images to JPG for smaller photo files and compatibility with services that reject PNG. The browser handles the standard conversion when Canvas is available, with a server fallback. The tool is free, supports batches, and server uploads up to 100 MB.
Convert .PNG to .JPG
Select a file to begin. Processing details and limits are listed below.
How to convert PNG to JPG
- 1
Select PNG files
Drop one or more PNG images into the uploader. The browser path starts locally when Canvas can decode the source.
- 2
Choose JPEG quality
Open the options panel and set a quality level. Use a high value for text or product photos and a lower value for large casual images.
- 3
Convert and download
Process the queue and download the JPG files individually or as a ZIP.
Portable Network Graphics vs JPEG image
| Spec | Portable Network Graphics | JPEG image |
|---|---|---|
| MIME type | image/png | image/jpeg |
| Format type | image | image |
| Standard | ISO/IEC 15948 | ISO/IEC 10918 |
| First release | 1996 | 1992 |
| Browser support | All current major browsers | All current major browsers |
| Contents | Lossless DEFLATE-compressed raster image with optional alpha transparency and animation through APNG. | Lossy DCT-compressed raster image with 8-bit color channels and optional EXIF metadata. |
About Portable Network Graphics
Pixel-perfect lossless output, clean alpha transparency, and strong support for screenshots, logos, and line art. Photographic images are usually much larger than JPEG or WebP; metadata and animation support vary by viewer.
Format referenceAbout JPEG image
Very small files for photographs, universal application support, and an adjustable quality setting. Lossy compression can create block and ringing artifacts; it has no alpha transparency and is poor for sharp line art or screenshots.
Format referenceWhy convert PNG to JPG?
- JPG is often far smaller than PNG for photographs, which helps with email limits and slow connections.
- Older websites, forms, and print services sometimes accept JPEG but not PNG.
- A quality control lets you trade a little sharpness for a smaller final file.
- Flattening a PNG with transparency into JPEG produces a predictable opaque image for sharing.
Will quality change?
PNG to JPG is a lossy step. The encoder discards some color detail to reduce size, and repeated JPEG saves add more generation loss. Transparent areas become opaque because JPEG has no alpha channel. Text, icons, and screenshots can look softer, so use a high quality setting when sharp edges matter.
Processing and limits
- Processing
- Browser first, server fallback
- Engine
- Browser Canvas, with Sharp as the server fallback
- Maximum size
- Server fallback accepts files up to 100 MB. Browser conversions depend on device memory.
- Batch support
- Yes, batch conversion is supported.
- Quality controls
- Adjustable JPEG quality. Higher values preserve more detail; lower values reduce file size.
The browser decodes the PNG, draws it onto a canvas with an opaque background, and encodes JPEG locally. If local encoding is unavailable, the server processes the file with Sharp. Nothing is retained after the download is produced.
- Transparency is flattened because JPEG does not support alpha.
- The output is lossy, so sharp text and line art may lose edge definition.
- Converting back to PNG later cannot restore the discarded JPEG color data.
Platform compatibility
JPEG is one of the most widely supported image formats in existence. It opens in every current browser and in the default photo tools on Windows, macOS, Linux, iOS, and Android, which makes it a safe choice for unknown recipients.
When not to convert
- Do not convert a transparent logo or icon if the transparency must remain available.
- Avoid JPEG for screenshots and diagrams that need crisp text and flat color edges.
- If you need to keep editing the image, keep the original PNG and use the JPG only as a delivery copy.
Frequently asked questions
- Does PNG to JPG preserve transparency?
- No. JPEG has no alpha channel, so transparent pixels become opaque during conversion. The output cannot carry a transparent background.
- What JPEG quality should I use?
- Use a high quality setting for text, product photos, or images that will be edited again. Lower settings can work for large photos where file size matters more than fine detail.
- Why does the JPG look softer than the PNG?
- JPEG uses lossy compression and discards some high-frequency detail. Sharp edges, small text, and flat-color graphics are the first places where that loss becomes visible.
- Will the file size always get smaller?
- Usually, especially for photographic PNGs. A simple graphic PNG can already be small, so the JPEG may not shrink much and can even be larger at very high quality settings.
- Can I convert a PNG screenshot to JPG?
- Yes, but JPEG is a poor fit for screenshots because it softens text and introduces artifacts around sharp edges. Keep a PNG master and use the JPG only when a service requires it.
- Is batch conversion available?
- Yes. Add multiple PNG files, apply one quality setting globally, and download the completed JPG files together as a ZIP.