Converting PNG to JPG is one of the most common file conversion tasks, whether you are optimising images for a website, reducing file sizes for email attachments, or preparing photos for social media. This guide covers everything you need to know — from a quick step-by-step walkthrough to understanding when JPG is the right choice and when you should keep your PNG.
Why Convert PNG to JPG?
PNG (Portable Network Graphics) is a lossless format that preserves every pixel of your image. While this makes it excellent for screenshots, logos, and graphics with transparency, it also means PNG files tend to be significantly larger than their JPG counterparts.
JPG (JPEG) uses lossy compression to dramatically reduce file sizes — often achieving 60-80% smaller files than PNG with minimal visible quality loss for photographs and complex images.
Common reasons to convert:
Website speed — Smaller JPG files load faster, improving page speed scores and user experience. For even better web performance, consider converting to WebP which is 25-35% smaller than JPG.
Email attachments — Many email providers impose attachment size limits that PNG files can easily exceed. See our guide on compressing images for email for more tips.
Social media — Platforms like Instagram and Facebook often recompress uploaded images anyway, so starting with an optimised JPG is more efficient. Check our Instagram image guide for optimal settings.
Storage space — If you have thousands of screenshots or photos in PNG format, converting to JPG can free up considerable disk space.
HEIC compatibility — If you have iPhone photos in HEIC format that need to be shared universally, you can convert HEIC to JPG directly.
How to Convert PNG to JPG Online
The fastest method is using an online converter like FileConvertTool:
1. Visit the converter — Go to the PNG to JPG converter.
2. Upload your file — Click the upload area or drag and drop your PNG file directly.
3. Convert — Click the Convert button. The process typically takes just a few seconds.
4. Download — Save your converted JPG file to your device.
No software installation is required, and the conversion works on any device with a web browser.
PNG vs JPG: Quick Comparison
| Feature | PNG | JPG |
|---|---|---|
| Compression | Lossless | Lossy |
| File size | Larger | 60-80% smaller |
| Transparency | Yes (alpha channel) | No |
| Best for | Screenshots, logos, graphics | Photos, web images, sharing |
| Quality loss | None | Minimal at high quality settings |
| Animation | No (APNG limited) | No |
| Web support | Universal | Universal |
For a deep dive into all image formats including WebP, AVIF, SVG, and more, read our complete guide: Image File Formats Explained: PNG vs JPG vs WebP vs SVG vs GIF.
Quality Considerations
When converting from PNG (lossless) to JPG (lossy), there is an inherent trade-off between file size and image quality. Here are some tips to get the best results:
Photographs — JPG excels with photographic content. You can use higher compression (lower quality settings) with minimal visible difference. Our image compressor lets you control quality settings precisely.
Text and sharp edges — Images with text, line art, or sharp colour boundaries may show compression artifacts in JPG. Consider keeping these as PNG, or convert to WebP lossless for smaller files without quality loss.
Transparency — JPG does not support transparency. Any transparent areas in your PNG will be converted to a solid background colour (usually white). If you need transparency with smaller files, convert PNG to WebP instead — WebP supports transparency in both lossy and lossless modes.
Screenshots — Converting screenshots to JPG reduces file size by 60-80%, making them easier to share via email and chat.
Other Conversion Options
PNG to JPG isn't your only option. Depending on your needs, these alternatives might be better:
PNG to WebP — 26% smaller than PNG (lossless) or 80%+ smaller (lossy). Best for modern websites.
PNG to AVIF — Even smaller than WebP. Next-gen format for maximum web performance.
PNG to SVG — Convert raster to vector for logos and icons that need to scale to any size.
PNG to ICO — Create favicons for your website.
Need the reverse? Convert JPG to PNG when you need transparency support or lossless quality.
Batch Conversion
If you need to convert multiple PNG files to JPG at once, FileConvertTool supports batch uploads — drag and drop multiple files and convert them all simultaneously.
Frequently Asked Questions
Does converting PNG to JPG reduce quality?
JPG uses lossy compression, so there is some quality reduction. However, at quality settings of 80-90%, the difference is virtually invisible for photographs. For images with text or sharp edges, artifacts may be more noticeable — in those cases, consider keeping PNG or using WebP instead.
Can I convert PNG to JPG on my phone?
Yes. FileConvertTool's PNG to JPG converter works in any mobile browser — iPhone, Android, or tablet. No app installation needed.
What happens to transparency when converting PNG to JPG?
JPG does not support transparency. Transparent areas are filled with a solid colour (usually white). If you need to keep transparency, convert to WebP instead — it supports transparency with smaller file sizes than PNG.
Is it better to use WebP or JPG for websites?
For modern websites, WebP is generally better — 25-35% smaller files than JPG at equivalent quality, with all modern browser support. JPG is the safer choice for email, print, and older software. Read our full comparison: WebP vs PNG.
What is the best free PNG to JPG converter?
FileConvertTool offers free PNG to JPG conversion with no registration, no watermarks, and no daily limits. Files are processed server-side and automatically deleted after conversion.
Related Conversions
PNG to JPG — Convert now, free
PNG to WebP — Smaller files for web
PNG to SVG — Vectorise images
PNG to AVIF — Next-gen compression
JPG to PNG — Reverse conversion
HEIC to JPG — iPhone photos