.jpg.png
How to Convert JPG to PNG
To convert JPG to PNG, drop your JPG into the converter above, choose PNG as the target, and download the lossless result. Converting to PNG makes sense when you need to edit the image repeatedly without further quality loss, add transparency, or feed it into a tool that requires PNG input. Note that the conversion cannot restore detail the JPG already discarded — it freezes the current quality into a lossless container.
This page is part of the Image Converter hub, which covers every image format pair JoltFile supports.
In-browser image limit: 100 MB per file
Browser-based processing — your files never leave your device
Need files over 100 MB, batch conversion, or keyboard shortcuts?
JoltFile desktop appHow to convert JPG to PNG in 5 steps
The whole process takes under two minutes and requires no software installation or account. Your original JPG file is never modified.
Upload your JPG file
Drag your .jpg file onto the converter above, or click “Browse files” to select it from your device. Files are processed locally in your browser whenever possible — nothing is uploaded to a server.
Confirm the output format is PNG
The converter defaults to JPG → PNG on this page. If you dropped in a different file type, set the target format to PNG (.png) using the format menu.
Adjust quality settings
Choose your quality settings. For photos, quality 90 is visually indistinguishable from the original; graphics with text or transparency should use the lossless option when available.
Convert the file
Click “Convert”. JoltFile processes the file and shows a progress indicator — most image conversions finish in a few seconds.
Download your PNG file
Save the converted .png file to your device. The original JPG file is never modified, and temporary data is discarded automatically.
What happens to quality when converting JPG to PNG?
JPG to PNG is lossless from this point forward: no new compression damage occurs, but the artifacts baked into the JPG remain. File size typically grows 2–6× because PNG stores every pixel exactly. The main gains are edit-safety (re-saving no longer degrades the image) and the ability to add an alpha channel.
When should you convert JPG to PNG?
- Preparing a JPG for repeated editing in Photoshop or GIMP
- Adding transparency to a photo (after background removal)
- Meeting a PNG-only upload requirement in design or print tools
- Stopping generational quality loss in an image that gets re-saved often
JPG vs PNG: format comparison
| Property | JPG | PNG |
|---|---|---|
| File extension | .jpg | .png |
| Full name | JPEG (Joint Photographic Experts Group) | Portable Network Graphics |
| Compression | Lossy (DCT-based) | Lossless (DEFLATE) |
| Transparency | Not supported | Supported |
| MIME type | image/jpeg | image/png |
| Introduced | 1992, by Joint Photographic Experts Group | 1996, by PNG Development Group |
| Best for | Photographs, web imagery, email attachments, and anywhere small size beats perfect fidelity | Screenshots, logos, icons, UI graphics, and any image needing transparency |
About the JPG and PNG formats
What is JPG? (JPEG (Joint Photographic Experts Group))
JPG (JPEG) is the most widely used lossy image format, standardized in 1992. It achieves 10:1 or greater compression on photographs by discarding detail the human eye barely notices, which is why virtually every camera and phone shoots JPEG by default.
Strengths
- Very small files for photographic content
- Supported by literally every device, browser, and app
- Adjustable quality/size trade-off
- Fast to decode on any hardware
Limitations
- Lossy — quality degrades with every re-save
- No transparency support
- Visible artifacts around text and sharp edges
What is PNG? (Portable Network Graphics)
PNG is a lossless raster image format created in 1996 as a patent-free replacement for GIF. It supports full alpha transparency and compresses without discarding any pixel data, which makes it the default choice for screenshots, UI assets, logos, and graphics with sharp edges or text.
Strengths
- Lossless compression — pixels survive every save
- Full alpha-channel transparency
- Universal support in browsers, editors, and operating systems
- Ideal for text, line art, and screenshots
Limitations
- Files are much larger than JPEG or WebP for photographs
- No native animation support (APNG exists but is a separate spec)
- No embedded color-management or metadata richness compared to TIFF
JPG to PNG conversion: your questions answered
Does converting JPG to PNG improve quality?
No. PNG preserves exactly what the JPG contains — compression artifacts included. The benefit is that future edits and re-saves stop degrading the image further.
Why is the PNG file so much bigger?
PNG uses lossless compression and stores every pixel exactly, while JPG discards detail to shrink files. Expect the PNG to be 2–6 times larger than the source JPG depending on image complexity.
Will the PNG have a transparent background automatically?
No. The converted PNG starts fully opaque, just like the JPG. Transparency must be added afterwards with an editor that removes or masks the background.
Is it free to convert JPG to PNG with JoltFile?
Yes. JoltFile's free tier covers everyday JPG to PNG conversions with no account and no watermarks. Higher file-size limits and batch processing are planned for the upcoming Pro tier.
Is my JPG file private when I convert it?
Yes. JoltFile is designed around browser-based processing: whenever technically possible your file is converted locally on your own device and never uploaded to a server. Files that do require server processing are encrypted in transit and deleted automatically after conversion.
FAQ provided by JoltFile.