PNG to JPEG Converter

Compress PNG images to JPEG format online free

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Rapid Compression

PNG to JPEG conversion happens quickly on cloud servers — even large resolution images are processed in seconds.

Batch Friendly

Upload multiple PNG images and convert them all to JPEG in one session — no need to process one at a time.

Ideal for Photos

JPEG was designed for photographic content. Converting PNG screenshots or photos to JPEG produces compact, share-ready images.

How to convert PNG to JPEG

1

Select files from Computer, Google Drive, Dropbox, URL or by dragging it on the page.

2

Choose jpeg or any other format you need as a result (more than 200 formats supported)

3

Let the file convert and you can download your jpeg file right afterwards

About formats

PNG (Portable Network Graphics) is a lossless raster image format developed by the PNG Development Group and published as a W3C Recommendation on October 1, 1996, created as a patent-free replacement for GIF after the Unisys LZW patent controversy. PNG uses a two-stage compression pipeline: a prediction filter selects the optimal per-row preprocessing (none, sub, up, average, or Paeth), then DEFLATE compression encodes the filtered data. The format supports rich color modes — 1/2/4/8/16-bit grayscale, 8/16-bit per channel true color, and indexed color with palettes up to 256 entries — all with optional alpha transparency ranging from a single transparent color to a full per-pixel alpha channel with 256 or 65536 levels. PNG also stores gamma correction, ICC color profiles, text metadata, and suggested background color. One advantage is lossless compression with transparency — PNG preserves every pixel exactly while supporting smooth semi-transparent edges, making it the standard format for web graphics, UI elements, logos, screenshots, and any image where artifacts or color shifts are unacceptable. Universal support is another core strength: every web browser, operating system, image editor, and programming library handles PNG natively. The format has proven remarkably durable — after nearly three decades, PNG remains the default lossless web image format. While newer formats like WebP and AVIF offer better compression, PNG's combination of lossless quality, full transparency, and absolute ubiquity keeps it indispensable.
Initial release: October 1, 1996
JPEG is one of the most widely used image formats in computing, standardized by the Joint Photographic Experts Group and published as ISO/IEC 10918-1 in September 1992. The .jpeg extension is functionally identical to .jpg — both contain the same JFIF or Exif-wrapped JPEG compressed image data. The format applies lossy compression using the discrete cosine transform (DCT): images are divided into 8x8 pixel blocks, transformed into frequency coefficients, quantized to discard visually less significant information, and entropy-coded for storage. The quality-to-size tradeoff is user-selectable, with typical settings producing files 10-20 times smaller than uncompressed originals at visually acceptable quality. JPEG supports 8-bit grayscale and 24-bit color, with Exif metadata carrying camera settings, GPS coordinates, timestamps, and thumbnails. One advantage is absolute universality — JPEG is readable by every image viewer, web browser, operating system, camera, phone, and printer manufactured in the past three decades, making it the safest format for sharing photographic images with any recipient. The efficient compression of continuous-tone photographic content is another core strength: JPEG consistently produces compact files from camera sensors and real-world scenes where subtle color gradients dominate. While newer formats like WebP and AVIF achieve better compression ratios, JPEG's installed base is so vast that it remains the default output of digital cameras and the most common image format on the web.
Initial release: September 18, 1992

Frequently Asked Questions

Why convert PNG to JPEG?

JPEG files are far smaller than PNG for photographs. Switching to JPEG can cut file size by 80% or more, making images ideal for email and web.

Is JPEG the same as JPG?

Yes — JPEG and JPG are identical formats. The shorter extension originated from older systems that limited extensions to three characters.

What apps open JPEG?

JPEG is universally supported — Windows Photos, macOS Preview, Adobe Photoshop, GIMP, every smartphone gallery, and all browsers open it.

Does converting remove transparency?

JPEG does not support transparent pixels. Transparent sections in your PNG become an opaque background color in the output.

Is PNG to JPEG conversion free?

Yes, basic conversions are free on Convertio. Upgrading unlocks batch processing and higher throughput for large workloads.

How does compression quality work?

Higher quality preserves more visual detail but creates bigger files. Lower quality yields smaller files with slight softness in fine details.

PNG to JPEG Quality Rating

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