Convert PNG to JPG free in your browser. Batch convert, set the quality and download instantly. Your images are never uploaded.
Add your PNG files, adjust the settings and download JPG files. Everything runs in your browser, so your images are never uploaded.
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To convert PNG to JPG online, add your PNG files above, choose a quality (85 to 92 suits most photos), pick a background colour for any transparent areas, press Convert and download the JPG files. Nothing is uploaded; conversion runs in your browser.
Shrink heavy PNG photos and screenshots into compact JPG files that load faster, fit email limits and upload quickly. You control the quality and the colour that replaces any transparent areas. It is a free tool from Websolindia, a New Delhi website design and SEO company that builds fast, image-optimised websites.
Unlike most online converters, this tool does not upload your images. Your browser decodes each PNG file, converts it and creates the JPG file on your own device. That keeps private photos private, avoids upload waits and keeps working on a slow connection once the page has loaded. You can convert up to 50 files at a time and download them one by one or together as a ZIP.
Need to go the other way? Use our JPG to PNG Converter Online. For related jobs, try the PNG to WebP Converter Online, or browse every tool in the Websolindia image converter collection. Smaller images load faster; you can measure the effect with our Website Performance Analyzer.
This table compares the two formats so you can decide whether converting is the right move.
| Feature | PNG | JPG |
|---|---|---|
| Full name | PNG (Portable Network Graphics) | JPEG (Joint Photographic Experts Group) |
| Origin | W3C Recommendation in 1996 | Standardised in 1992 |
| Compression | Lossless | Lossy |
| Transparency | Yes, full alpha (256 levels of transparency) | No transparency |
| Animation | No (animated PNG is a separate extension) | No |
| Colour depth | Up to 16 bits per channel | 8 bits per channel (24-bit colour) |
| Typical file size | Large for photos, small for flat graphics | Small for photographs |
| Best for | Logos, screenshots, graphics and anything needing transparency | Photographs and images with many colours |
| Browser support | Every browser, app and device | Every browser, app and device |
| File extension | .png | .jpg, .jpeg |
File size: Photographs usually become much smaller. Flat logos and screenshots with large solid areas may shrink less, or even grow.
This is exactly what happens to your file. Nothing is hidden, and you can verify that nothing is uploaded by watching your browser's network tab while you convert.
| Step | What happens |
|---|---|
| 1. Read the file locally | Your browser reads the file from your device into memory. Nothing is sent to a server. |
| 2. Identify the format | We check the file's first bytes (its signature) instead of trusting the extension, so a PNG renamed to .jpg is still handled correctly. |
| 3. Decode the PNG to pixels | The image is decoded to raw red, green, blue and alpha pixels using your browser's built-in PNG decoder. |
| 4. Resize (optional) | If you set a maximum width, larger images are scaled down with an area-weighted filter. Images are never enlarged, and the proportions are always kept. |
| 5. Flatten transparency | JPG cannot store transparency, so each pixel is blended with your chosen background colour: result = colour × α + background × (1 − α) for every channel, where α runs from 0 (transparent) to 1 (opaque). |
| 6. Encode the JPG | The pixels are written out as JPG using your browser's JPEG encoder, using the quality you set. Metadata such as camera details and location is not copied. |
| 7. Report the result | We show the dimensions, the sizes before and after, and the change: (new size − original size) ÷ original size × 100. For example, 500 KB becoming 350 KB is −30%. |
| Setting | Default | Range | What it does |
|---|---|---|---|
| Quality | 90 | 1–100 | Higher gives a sharper, larger JPG. 85–92 suits most photos. |
| Background colour | White | Any colour | Fills transparent areas, since JPG cannot store transparency. |
| Maximum width | None | 1–20,000 px | Scales larger images down. Never enlarges. |
| What | Formula | Notes |
|---|---|---|
| Size change | (new − original) ÷ original × 100 | Shown for every file. Negative means smaller. |
| Transparency | colour × α + background × (1 − α) | Per colour channel; α from 0 to 1. |
| Downscale factor | min(1, maximum width ÷ width) | Applied only when you set a maximum width; never above 1. |
| Quality | Passed to the encoder as a number from 1 to 100 | The scale is encoder-specific, so the same number gives different results in different formats. |
Speed depends on your device and the image size. In our Chrome tests on a desktop-class processor, a 6-megapixel photograph took about 2 seconds to convert to WebP or PNG. AVIF is the slowest: about 2.5 seconds on Fast and about 7.5 seconds on Balanced. Phones and older laptops take longer, and images over about 120 megapixels are declined rather than risking a frozen browser.
| Format | Where it opens | Typical use |
|---|---|---|
| PNG | Every browser, app and device | Logos, screenshots, graphics and anything needing transparency |
| JPG | Every browser, app and device | Photographs and images with many colours |
| This converter | Current Chrome, Edge, Firefox and Safari. Needs JavaScript | Private conversion on your own device |
JPG has no transparency, so each transparent pixel is blended with the background colour you choose. Fully transparent pixels become exactly that colour; partly transparent pixels are mixed with it in proportion.
85 to 92 gives photographs that look the same as the original to most people while cutting size sharply. Use 92 to 95 for images with fine text or sharp edges, and 70 to 80 only when you need the smallest possible file.
At high quality (90+) text stays readable, but JPG can add faint noise around sharp edges. If the screenshot is mostly text, keep it as PNG or use PNG to WebP Converter Online in lossless mode.
It depends on the image. Photographs often shrink dramatically, while simple graphics with flat colour may not. The result row shows the exact before and after sizes and the percentage change.
No. Once transparent pixels are replaced with a colour, the information is gone. Keep your original PNG if you may need transparency again.
Yes. Try the PNG to WebP Converter Online or the PNG to AVIF Converter Online for smaller files with transparency preserved, as long as the place you are uploading to accepts them.
Yes. It is free, needs no sign-up, adds no watermark and has no daily limit. You can convert up to 50 PNG files in one go. It is provided by Websolindia.
No. Your PNG files are read and converted inside your browser, on your own device. They are never sent to Websolindia or anyone else, which is why this converter is safe for private photos and documents.
Yes. The new file is created from the decoded pixels, so camera details, GPS location and other embedded metadata are not copied. If you need to keep metadata, use a desktop editor.
Up to 50 files per batch and 150 MB per file. Images above roughly 120 megapixels are declined with a clear message rather than freezing your browser.
Current versions of Chrome, Edge, Firefox and Safari.
Websolindia built it. We are a New Delhi website design, SEO and digital marketing company serving businesses since 2014. We also build fast websites with properly optimised images; see our website designing and SEO services.
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