Shrink large PNG files to JPG for faster web delivery, email sharing, and broader platform compatibility
Drop PNG files here
or browse files
Up to 10 files · 50 MB each
Click "Upload PNG" or drag files onto the upload area. Select multiple files at once for batch conversion.
Files are converted to JPG right away. Single files are typically ready in under two seconds; larger batches take a few seconds more.
Click "Download JPG" to save your file. Batch conversions can be downloaded as a ZIP archive. No signup or email needed.
JPG's lossy compression typically reduces PNG file sizes by 70–90%. For photos and graphics without transparency, the visual difference at quality 85+ is negligible, but the size difference is significant.
JPG is supported by every device, browser, operating system, and image application in use today. If you need an image to open anywhere without issues, JPG is the safest bet.
Smaller file sizes mean faster load times and fewer bounced emails due to attachment limits. For content-heavy pages or regular email newsletters, the difference adds up quickly.
Convert up to 10 PNG files to JPG in one session — useful for processing a set of screenshots, design exports, or content images all at once.
Completely free to use. No watermarks, no conversion limits, no account required.
Files are deleted immediately after conversion. We never store, view, or share your images.
PNG files are lossless, which makes them large — often 5 to 10 times larger than an equivalent JPG. If you're uploading images to a website, sending them via email, or sharing on social media, converting to JPG dramatically reduces file size with no visible quality difference at reasonable quality settings. A 4 MB PNG screenshot or graphic can become a 300–500 KB JPG that loads much faster.
Many platforms — social media sites, job boards, CMS tools, form builders — either require JPG or perform better with it. Some have file size limits that PNG files regularly exceed. Converting to JPG is the fastest way to get your images within those limits without manually resizing or re-exporting from a design tool.
PNG's main advantage over JPG is transparency support. If your PNG doesn't have a transparent background — screenshots, photos exported as PNG, diagrams on white backgrounds — you're paying the file size penalty of PNG without getting its main benefit. Converting to JPG gives you a much smaller file with no meaningful quality trade-off for these use cases.
No software to install. Works directly in your browser on any device — desktop, tablet, or phone.
Convert up to 10 PNG files to JPG in a single session. Files are processed in parallel and downloadable individually or as a ZIP.
Supports PNG files up to 50 MB — large enough for high-resolution exports, detailed screenshots, and large design files.
Set your preferred quality level before converting. A setting of 85 is a reliable default — good quality, meaningfully smaller than the source PNG.
All uploads use HTTPS encryption. Files are permanently deleted from servers after conversion. GDPR compliant.
Works on all modern mobile browsers. No app download needed.
PNG and JPG are built for different things. PNG prioritizes quality and transparency; JPG prioritizes small file sizes and broad compatibility. When you don't need what PNG offers, converting to JPG makes practical sense.
| Aspect | PNG | JPEG |
|---|---|---|
| Compression | Lossless (Deflate) | Lossy |
| Transparency | Yes | No |
| Animation | No | No |
| Typical File Size | Medium to large (200 KB – 20 MB) | Small to medium (50 KB – 5 MB for photos) |
| Color Depth | 24-bit (RGB) or 32-bit (RGBA with alpha) | 24-bit (16.7 million colors) |
| Best For | Logos, icons, UI graphics, design assets | Photos, social media, email, web content |
| Browser Support | All browsers | All browsers |
Convert PNG to JPG when your image doesn't need transparency and file size matters. If the PNG has a transparent background that you need to preserve, keep it as PNG — or consider WebP, which supports transparency at smaller sizes than PNG.
PNG is a great format — lossless, transparent, sharp. But those qualities come at a cost: PNG files are large, sometimes significantly so. When you're working with photos, screenshots, or graphics that don't need transparency, that file size doesn't buy you anything. Converting to JPG gives you a much smaller file with quality that's visually identical at reasonable settings — and compatibility that works on every platform, device, and email client without question.
The clearest case is when you have a PNG that doesn't use transparency. Screenshots are a common example — they're often saved as PNG by default, but they're just flat images. A 3 MB screenshot PNG can easily become a 200–400 KB JPG with no visible change. The same applies to photos exported as PNG from a design tool, diagrams on white backgrounds, and product images with solid backgrounds.
Platform compatibility is another reason. Some upload forms, CMS tools, and social media platforms handle JPG better than PNG — either enforcing file size limits that PNG frequently exceeds, or subtly reprocessing PNG uploads in ways that introduce their own quality loss anyway. Submitting a well-compressed JPG often produces a better end result.
Email is a third case. PNG attachments are large and can trigger size limits or slow down delivery. Converting to JPG before attaching is a simple fix.
**File size:** This is the main reason to convert. PNG lossless compression produces files that are typically 3–10x larger than equivalent JPGs. For photographs and web content images, that size difference isn't justified by any quality benefit visible on screen.
**Transparency:** PNG supports full alpha channel transparency. JPG doesn't — transparent areas become solid (usually white) when you convert. This is the critical check before converting: if your PNG has transparency you need to preserve, don't convert to JPG. Use WebP instead, which supports transparency at smaller file sizes than PNG.
**Quality:** PNG is lossless — it stores every pixel exactly. JPG introduces lossy compression, which means some data is permanently discarded. At quality settings of 85 and above, this difference is invisible for most images. For sharp text, fine line art, or highly detailed graphics, use quality 90+ to keep edges clean.
**Editing:** If you're going to keep editing the file, stay in PNG. Converting to JPG and then re-editing and re-saving will accumulate compression artifacts. Convert to JPG only when the image is ready for delivery.
**Check for transparency first.** Open your PNG and look for any see-through areas. If the image has a transparent background, decide whether you're okay with it becoming white — or choose a different output format.
**Quality 85 is a reliable default.** For most web images and photos, quality 85 strikes the right balance — the file is meaningfully smaller than the source PNG, and the visual difference is negligible. For images with fine text or line art, try 90–92.
**Keep your original PNGs.** Converting to JPG is a one-way quality change. If you need the lossless version later — for print, re-editing, or a different use case — you'll want the original. Don't delete source files until you've verified the JPG output looks right.
**Don't over-compress.** Dropping quality below 75 to save a few more kilobytes often produces obvious artifacts on complex images. The file size savings below 80 are diminishing; the quality loss is not.
**Web developers and content managers** converting design exports and screenshots to JPG for faster page loads and CMS compatibility. PNG is common in design workflows but often too large for practical web use.
**Social media managers and content creators** who export graphics from Canva, Figma, or Photoshop as PNG and need to convert before uploading to platforms with file size limits or JPG-only requirements.
**Photographers** who receive PNG files from clients or editing tools and need JPG for delivery, printing, or uploading to photo sharing platforms.
**Anyone sending image-heavy emails** where PNG attachments are pushing against size limits or slowing down delivery.
If your PNG doesn't need transparency and file size matters, converting to JPG is a straightforward win. PortImg handles the conversion in your browser in seconds — no software, no account, no watermarks. Upload your PNG, set your quality level, and download a JPG that's ready to use.