Convert JPG to PNG free in your browser. Batch convert, set the quality and download instantly. Your images are never uploaded.
Add your JPG files, adjust the settings and download PNG files. Everything runs in your browser, so your images are never uploaded.
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To convert JPG to PNG online, add your JPG files to the converter above, press Convert and download the PNG files. Everything happens in your browser, so nothing is uploaded. PNG is lossless, but it cannot restore detail that JPG compression already removed, and PNG files are usually larger.
Turn JPG photos into lossless PNG files in seconds. PNG is the right choice when you want to edit an image repeatedly without losing more quality, when an app only accepts PNG, or when you plan to add transparency in an editor afterwards. 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 JPG file, converts it and creates the PNG 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 PNG to JPG Converter Online. For related jobs, try the JPG to WebP Converter Online, or browse every tool in the Websolindia image converter collection. Optimised images help page speed, which you can measure with our Website Performance Analyzer.
This table compares the two formats so you can decide whether converting is the right move.
| Feature | JPG | PNG |
|---|---|---|
| Full name | JPEG (Joint Photographic Experts Group) | PNG (Portable Network Graphics) |
| Origin | Standardised in 1992 | W3C Recommendation in 1996 |
| Compression | Lossy | Lossless |
| Transparency | No transparency | Yes, full alpha (256 levels of transparency) |
| Animation | No | No (animated PNG is a separate extension) |
| Colour depth | 8 bits per channel (24-bit colour) | Up to 16 bits per channel |
| Typical file size | Small for photographs | Large for photos, small for flat graphics |
| Best for | Photographs and images with many colours | Logos, screenshots, graphics and anything needing transparency |
| Browser support | Every browser, app and device | Every browser, app and device |
| File extension | .jpg, .jpeg | .png |
File size: The file usually gets larger, often several times, because PNG stores every pixel without lossy compression.
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 JPG to pixels | The image is decoded to raw red, green, blue and alpha pixels using your browser's built-in JPEG 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. Keep transparency | Transparency passes straight into the PNG file, because PNG supports it. |
| 6. Encode the PNG | The pixels are written out as PNG using your browser's PNG encoder (lossless). 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 |
|---|---|---|---|
| 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. |
| Downscale factor | min(1, maximum width ÷ width) | Applied only when you set a maximum width; never above 1. |
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 |
|---|---|---|
| JPG | Every browser, app and device | Photographs and images with many colours |
| PNG | Every browser, app and device | Logos, screenshots, graphics and anything needing transparency |
| This converter | Current Chrome, Edge, Firefox and Safari. Needs JavaScript | Private conversion on your own device |
No. PNG is lossless, so it keeps exactly what it is given, including the compression artefacts already in the JPG. The conversion stops further loss; it cannot recover detail that is already gone.
JPG discards detail the eye is unlikely to notice to make files small. PNG keeps every pixel, so photographs often become several times larger. For smaller files that stay sharp, try the JPG to WebP Converter Online or the JPG to AVIF Converter Online.
No. A JPG has no transparency, so the background stays as it is. To remove a background you need an editor or background-removal tool after converting.
The conversion adds no new loss: the PNG stores the decoded JPG pixels exactly. The loss that happened when the JPG was first saved remains.
Keep JPG for photographs on websites, email and social media, where small files matter. Choose PNG for lossless editing, sharp text, flat graphics and transparency.
Yes, with the PNG to JPG Converter Online. Expect another small quality loss, because JPG compresses the image again.
Yes. It is free, needs no sign-up, adds no watermark and has no daily limit. You can convert up to 50 JPG files in one go. It is provided by Websolindia.
No. Your JPG 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.
All converters: Websolindia Image Converter
