Free JPG to PNG Converter — Online, Lossless
Free online JPG to PNG converter — lossless conversion, no sign-up required. PNG supports transparency and is perfect for graphics and screenshots.
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Processing in seconds
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How to Convert JPG to PNG
Upload your JPG file
Drag and drop your JPG image into the converter or click to browse your files. You can select multiple JPGs for batch conversion. All standard JPEG variants are supported, including progressive JPEGs and EXIF-rich camera photos.
Preview the conversion
Since PNG is a lossless format, there is no quality slider — every pixel from your JPG is preserved as-is. The conversion faithfully reproduces the image without introducing any additional compression artifacts.
Download your PNG
Click the download button to save your converted PNG file. If you converted multiple images, use the 'Download all' button to get a ZIP archive. Your new PNG is ready to use in any design, presentation, or editing workflow.
Why Convert From JPG to PNG?
JPG (Joint Photographic Experts Group) is the most widely used image format for photographs. It achieves small file sizes through lossy compression — discarding visual information the human eye is least likely to notice. This makes JPG excellent for sharing photos, but each time a JPG is re-saved, a small amount of additional detail is lost. Over multiple edit-save cycles, compression artifacts like banding and blockiness can accumulate.
Converting a JPG to PNG 'freezes' the image in its current state. PNG uses lossless compression, so no further quality degradation can occur no matter how many times the file is opened, edited, and re-saved. This makes JPG-to-PNG conversion essential for editing workflows, archival, and any situation where transparency support or pixel-level accuracy is required.
It is important to understand that this conversion does not restore detail already lost during JPG compression. Think of it as switching from a degrading container to a stable one — the image quality is preserved exactly as it is, but will not deteriorate further.
JPG vs PNG — Detailed Comparison
| Feature | JPG | PNG |
|---|---|---|
| Compression type | Lossy — discards less visible detail | Lossless — every pixel preserved |
| Transparency | Not supported | Full alpha channel (256 levels) |
| Quality over re-saves | Degrades with each save | Stable — no generational loss |
| Typical photo size | 200–800 KB | 2–8 MB |
| Best for | Photography, web images, social media | Graphics, logos, screenshots, editing |
| Browser support | Universal since the 1990s | Universal since the early 2000s |
| Editing friendliness | Artifacts worsen with each edit cycle | No artifacts — safe for repeated editing |
| Color depth | 24-bit (8 bits per channel) | Up to 48-bit + 16-bit alpha |
Why Convert JPG to PNG?
- •Prevent further quality loss — once converted to PNG, you can edit and re-save as many times as you want without any degradation.
- •Add transparency — PNG supports alpha channels, so you can use the converted image as a starting point for removing backgrounds in a photo editor.
- •Graphic design workflows — design tools like Figma, Sketch, and Canva produce better results when working with lossless source files.
- •Screenshots and UI assets — PNG's lossless compression keeps text, icons, and sharp edges crisp without JPG's telltale smearing.
- •Archival purposes — storing important images as PNG ensures they can be opened decades from now without cumulative quality loss.
- •Print-ready files — print shops often prefer lossless formats to avoid compression artifacts appearing on high-resolution prints.
- •Software compatibility — some scientific and medical imaging tools require lossless PNG input for accurate analysis.
Real-World File Size Examples
| Source Image | JPG Size | PNG Size |
|---|---|---|
| Smartphone photo (4032 × 3024) | 3.2 MB | 18 MB |
| Web banner (1200 × 628) | 180 KB | 1.6 MB |
| Product photo (2000 × 2000) | 650 KB | 8.4 MB |
| Social media post (1080 × 1080) | 210 KB | 2.9 MB |
Privacy & Security
Your images are never uploaded to any server. The entire JPG-to-PNG conversion runs locally in your browser using the HTML5 Canvas API. Your photos — whether personal, medical, or business-related — never leave your device and are never stored on our infrastructure.
Because all processing is client-side, there is no server-imposed file size limit, no upload queue, and zero risk of data leaks. Once you close or refresh the page, all converted files are cleared from browser memory automatically.
Free JPG to PNG Converter — Online, Lossless — Frequently asked questions
Why convert a JPG to PNG?
PNG is a lossless format ideal for graphics, logos, and screenshots. It supports transparency and repeated conversion does not degrade the image.
Does converting JPG to PNG improve quality?
No. Conversion cannot recover information lost during the original JPG compression. Quality stays the same but the file will be larger.
Are my images uploaded to a server?
No. All conversion happens directly in your browser via the Canvas API. Your images never leave your device.
Will my PNG have a transparent background?
No. JPG does not store transparency information, so the converted PNG will have an opaque background identical to the original JPG. To add transparency, you would need to edit the PNG in a graphics editor and remove the background manually.
Why is the PNG file much larger than the JPG?
PNG uses lossless compression, which preserves every pixel exactly. JPG achieves smaller files by discarding visual detail the eye is unlikely to notice. A PNG converted from a JPG is typically 3 to 10 times larger because no data is thrown away during PNG encoding.
Can I convert multiple JPG files at once?
Yes. Drag and drop or select as many JPG files as you like. Each file is processed individually, and you can download them one by one or as a single ZIP archive.
Does the conversion change the image dimensions?
No. The width and height of your image remain exactly the same. Only the file format changes. Use a dedicated resize tool if you also need to change the dimensions.
Is this tool suitable for professional design work?
Yes. The conversion faithfully preserves every pixel from the original JPG. Designers commonly convert JPG assets to PNG before editing to prevent further quality loss during the design process.
Does this work on mobile phones and tablets?
Yes. The converter runs entirely in your browser and works on any modern device — iPhone, iPad, Android phones, and tablets. No app installation needed.
Will the EXIF data be preserved?
The Canvas API used for conversion does not transfer EXIF metadata (camera info, GPS location, etc.) to the output PNG. If you need to preserve metadata, use a dedicated tool. For privacy, this can actually be a benefit — sensitive location data is automatically stripped.
Why is my PNG file larger than the original JPG?
This is completely normal and expected. JPG is a lossy format that achieves small file sizes by discarding some image data — that is why JPG photos are compact. PNG, on the other hand, is a lossless format: it preserves every single pixel perfectly, which requires more storage space. A 2 MB JPG photo can become 8–15 MB as a PNG. The image looks identical (or better, since no further compression is applied), but the file is bigger. If you need a small file, stick with JPG. Choose PNG when you need transparency, lossless quality for editing, or pixel-perfect accuracy.