Convert PNG to JPG Online Free
Turn a PNG into a JPG and watch the file size collapse. The usual reason is a PNG that is far larger than it needs to be — screenshots and exported photos especially.
You may also want to reduce image size for upload.
Why use this tool
- Much smaller filesPhotographic PNGs commonly shrink by 80–95% as JPG.
- Universally acceptedJPG is the safest format for uploads, email and printing.
- Ideal for oversized screenshotsThe most common PNG complaint — a capture too big to attach.
- Free with no watermarkNo account and nothing added to the image.
When converting PNG to JPG makes sense
Almost always about size or compatibility rather than appearance:
- A PNG too large to email: Screenshots routinely exceed attachment limits.
- Uploading where size is capped: Forms that measure kilobytes rather than checking format.
- Photographs saved as PNG: PNG is a poor container for photos and inflates them badly.
- Reducing website page weight: JPG is far lighter for photographic content.
Why PNG photographs are so large
PNG is lossless — it reconstructs the original exactly and never discards detail. It compresses by finding repetition, which is abundant in flat colour and almost absent in photographs.
A photograph therefore has very little for PNG to exploit, and the file stays enormous. The same picture as JPG can be a tenth of the size with no visible difference, because JPEG discards precisely the detail the eye does not track.
This is why a phone screenshot containing a photo behaves so badly: the interface parts compress well, the photographic part does not.
When to keep the PNG instead
Keep it if the transparency matters. Logos, icons and anything designed to sit over another background rely on it, and flattening to white destroys that.
Keep it too for screenshots that are mostly text, diagrams or line art. Those are the images JPEG handles worst, producing faint smudging around sharp edges — exactly where PNG excels. And keep it if you plan to edit further, since each JPEG save compounds the loss.
Privacy and Security
Every image you upload is transmitted over an encrypted HTTPS connection. Once processing finishes and you have downloaded the result, both the original and the new file are permanently deleted from our servers. We never store, view or share your files.
About JPGStoPDF
JPGStoPDF is a free, browser-based file conversion service. Files are processed and discarded automatically; nothing is stored beyond the session. For questions or support, contact us or see our privacy policy.
Frequently Asked Questions
What happens to transparent areas?
They are filled with white, because JPG has no transparency channel. If transparency matters to your image, keep the PNG.
How much smaller will the JPG be?
For photographic content, commonly 80–95% smaller. Simple flat-colour graphics see less benefit.
Will quality drop?
JPG is lossy, but at the quality used here the difference is not visible at normal viewing and printing sizes.
Should I ever keep the PNG?
Yes — for transparency, for text and line art, and for images you intend to keep editing.
Is it free?
Yes, with no account and no watermark.