JPEG to PNG
Drop your JPEG files. Get crisp PNGs back.
Drag and drop JPEG files here
or
Max 10 MB per file • JPEG only
How This Converter Works
This tool runs entirely in your browser. When you upload a JPEG file, it loads into an HTML5 Canvas element, which reads the pixel data and re-encodes it as a PNG file. Nothing gets sent to a server. Your files stay on your device from start to finish, and the download goes directly to your machine.
You can convert one file or queue several at once. The tool processes each file in order and gives you a separate download link for each result. If a file fails for any reason, it shows an error next to that file so the rest of the queue still completes.
What Changes When You Convert JPEG to PNG
The format changes. The pixels do not.
JPEG uses lossy compression. Every time a file is saved as a JPEG, the encoder discards some image data to reduce file size. Once that data is gone, you cannot recover it. Converting to PNG does not restore lost detail; it preserves whatever pixel information currently exists in the JPEG.
PNG uses lossless compression. The encoder compresses the file without discarding data, so the image decompresses exactly as it went in. This is why PNG files are larger than their JPEG counterparts at equivalent dimensions. You are trading file size for data integrity.
The key numbers: a typical 3 MB JPEG photo converts to a PNG between 8 and 15 MB, depending on image content. Photos with lots of detail and color variation compress less efficiently in PNG than graphics with flat colors and sharp edges.
JPEG vs PNG: Format Comparison
| Property | JPEG | PNG |
|---|---|---|
| Compression type | Lossy | Lossless |
| Transparency support | No | Yes (alpha channel) |
| Typical file size | Smaller | Larger |
| Quality loss per save | Yes, each re-save degrades quality | No, saves are lossless |
| Best for | Photographs, web images where file size matters | Graphics, screenshots, logos, images requiring transparency |
| Sharp edges and text | Artifacts visible at lower quality | Clean, no artifacts |
| Editing workflow | Degrades with repeated saves | Safe for repeated editing |
When to Use PNG Over JPEG
JPEG works well for photographs and any image where a small loss of quality is acceptable in exchange for a smaller file. PNG works better in specific situations.
Transparency. PNG supports an alpha channel, which means pixels in the image can be partially or fully transparent. JPEG does not support transparency at all. If you need a logo, icon, or graphic to sit on a colored background without a white box around it, you need PNG.
Text and sharp edges. JPEG compression introduces visible artifacts around high-contrast edges, particularly text on a solid background. PNG preserves those edges cleanly. For screenshots, diagrams, and interface mockups, PNG produces a noticeably cleaner result.
Repeated editing. If you plan to open, edit, and re-save an image multiple times, PNG preserves quality across each save. Re-saving a JPEG at each step compounds the compression loss. Work in PNG while editing and export to JPEG only for the final version if file size matters.
Print and production. Many print workflows and design applications require lossless source files. PNG is accepted in most of these pipelines where JPEG is not. For commercial print work requiring CMYK color, neither PNG nor JPEG is the final format — but PNG is the better working file to hand off.
Converting JPEG to PNG for Transparency
One of the most common reasons people convert JPEG to PNG is to prepare an image for background removal. JPEG cannot store transparent pixels. PNG can. Converting to PNG is the necessary first step before making any part of an image transparent.
The conversion itself does not remove backgrounds or create transparent areas. The pixels from your JPEG remain exactly as they are. What you get is a PNG file that is ready for transparency work — the actual removal happens afterward in an image editor.
Workflow for removing a background after conversion:
- Convert your JPEG to PNG using this tool.
- Open the PNG in an image editor: Photoshop, GIMP (free), Affinity Photo, or an online background removal tool like remove.bg or Adobe Express.
- Use the background eraser, magic wand, or automatic background removal to delete the background pixels.
- Save the result as PNG to preserve the transparency. Saving as JPEG at this point fills the transparent areas with white and discards the alpha channel.
If your image has a clean, single-color background — a product photo on white, for example — automated background removal tools work well on the converted PNG. Complex or busy backgrounds need manual selection in a full editor.
Tips for Better Results
Check your source file first. If your original JPEG is already heavily compressed, blurry, or has visible banding, the PNG will carry those same issues. Converting to PNG does not sharpen or clean up a poor source file.
Batch similar files together. The queue accepts multiple files at once. Group files of similar size before uploading so you can monitor progress without losing track of individual results.
Watch the output file size. A PNG converted from a high-resolution photograph can be 10 to 20 MB. If you plan to use the image on a website, consider whether you need to resize the image first or compress the PNG afterward using a separate tool.
Rename before downloading. The converter outputs a filename based on the original JPEG name with a .png extension. If you are converting a batch with generic filenames like IMG_4021.jpg, rename the source files before uploading so the downloaded PNGs are easier to organize.
Mobile use. The converter works on mobile browsers, but large files on older devices may take several seconds to process. Keep individual files under 5 MB for reliable performance on phones.
Frequently Asked Questions
Are my files uploaded to any server?
No. The conversion runs in your browser using the HTML5 Canvas API. Your files do not leave your device. There are no server logs, no stored copies, and no third-party services involved in the process.
Will I lose quality converting from JPEG to PNG?
The conversion itself loses no quality. PNG is lossless, so the pixel data from your JPEG is preserved exactly in the output. If your source JPEG was saved at low quality, those compression artifacts exist in the pixels and appear in the PNG. The converter does not introduce any new loss.
My PNG file is much larger than the original JPEG. Is that normal?
Yes. JPEG achieves small file sizes by discarding image data. PNG achieves small file sizes without discarding data, so it cannot compress photographs as aggressively. A PNG converted from a photo will almost always be larger than the source JPEG. This is expected behavior, not an error.
Does converting JPEG to PNG add transparency?
Converting to PNG gives you a file format that supports transparency, but the conversion itself does not remove backgrounds or create transparent areas. The pixels from your JPEG remain exactly as they are. To remove a background, open the converted PNG in an image editor like Photoshop, GIMP, or a dedicated background removal tool after conversion.
Can I convert PNG back to JPEG using this tool?
No. This tool converts JPEG to PNG only. To convert in the other direction, you need a separate tool that handles PNG input.
Is there a limit to how many files I can convert at once?
The tool has no built-in batch limit. You can queue as many files as your browser and device memory allow. For most devices, ten to twenty files at 2 to 5 MB each works without issue. Very large batches on low-memory devices may slow the browser tab or cause it to stall. If you are converting a large number of high-resolution images, work in smaller groups.
