JPG to PNG Converter — Free, Private, No Upload
Turn JPG photos into lossless PNGs you can edit and re-save without losing quality. Nothing is uploaded, and there are no limits or signups.
Converting a JPG to PNG gives you a lossless copy you can open, edit and re-save over and over without the picture slowly degrading, plus support for transparency. It's the format graphics tools and design apps expect. Just remember PNG can't rebuild detail that JPEG already discarded — it stops any further loss, and the file usually ends up larger.
How to convert JPG to PNG
- 1 Drop your JPG files into the box above, or tap to pick them from your phone or computer.
- 2 The format is already set to PNG — switch to WebP any time if you'd rather have a smaller file.
- 3 Download each PNG, or grab them all at once as a .zip. Nothing ever left your device.
Yes — because nothing is uploaded.
Most converters send your photos to a server you know nothing about. Filexum can't, because it never asks for them: the conversion runs inside your browser, on your own device. You don't have to take our word for it — open your browser's Network tab and watch it stay empty, or turn off Wi-Fi and convert anyway.
- Your photos are uploaded to a stranger's server
- Files may be kept, cached or logged after conversion
- Ads, watermarks, sign-ups or daily limits
- Needs a working internet connection
- Photos are converted on your device — nothing is uploaded
- There is no server, so there is nothing to store or leak
- No ads, no watermark, no signup, no limits
- Works offline — try it in airplane mode
Why JPG?
JPG (also written JPEG) has been the common language of digital photos since 1992. Every phone, browser, printer, TV and photo kiosk on the planet reads it, which is what makes it the safe choice whenever a picture just needs to open — on a friend's Windows laptop, an older website's upload form, or an email attachment.
It uses lossy compression, so pushing the quality very low can soften fine detail. At a sensible quality the difference is invisible to the eye, and you walk away with a file that works absolutely everywhere. This converter defaults to a high-quality JPG and lets you preview the result before you download.
Why PNG?
PNG arrived in 1996 as a free, patent-unencumbered image format, and it does something JPG can't: it is lossless. Every pixel is preserved exactly, and it supports full alpha transparency — which makes it the go-to format for screenshots, logos, diagrams and any image with sharp edges or text.
That perfect quality has a cost in size: a photographic PNG can be several times larger than the same picture as a JPG. If you want a pristine, editable copy of a HEIC photo — or you need transparency — PNG is the right target. For small, shareable files, JPG or WebP will serve you better.
JPG vs PNG at a glance
| JPG | PNG | |
|---|---|---|
| Typical size (12 MP photo) | ≈4 MB | ≈12 MB |
| Opens on Windows / old apps | Everywhere | Everywhere |
| Compression | Lossy (JPEG) | Lossless |
| Transparency | No | Yes (alpha) |
| First shipped | 1992 · JPEG group | 1996 · W3C |
JPG to PNG — frequently asked
Are my JPG files uploaded anywhere?
No. The whole conversion runs inside your browser, on your own device — no file, filename or hash is ever sent over the network. Turn off Wi-Fi and it still works.
Why would I convert JPG to PNG?
For a lossless master you can edit repeatedly without quality creeping down, for transparency support, or because a tool or website you're using specifically asks for PNG.
Will the PNG be higher quality than the JPG?
Not exactly. PNG is lossless, so it preserves the JPG exactly as it is now — but it can't recover detail the JPG already compressed away. It stops future quality loss rather than adding quality back.
Why is my PNG bigger than the JPG?
PNG stores every pixel exactly instead of using the lossy compression JPG relies on, so photographic images grow. If small size matters more, WebP is a better target than PNG.
Will converting add a transparent background?
No. JPG has no transparency to begin with, so the PNG keeps the same solid image. To cut out a background you'd need an image editor — the format change alone won't do it.
Is it free, and is there a limit?
It's completely free with no signup, ads or watermark, and there's no cap on how many files you convert — only your device's memory.