JPG to WebP Converter — Free, Private, No Upload
Shrink JPG photos into modern WebP files that load faster, right on your device. Nothing is uploaded, and there are no limits or signups.
WebP squeezes a JPG down further — often 25–35% smaller at the same visible quality — which makes it a favourite for speeding up websites and saving room on your phone. Every current browser displays it natively, so the main thing to check is whether the specific app you're sending the file to accepts WebP yet.
How to convert JPG to WebP
- 1 Drop your JPG files into the box above, or tap to pick them from your phone or computer.
- 2 Leave the format on WebP and, if you like, nudge the quality slider to trade size for detail.
- 3 Download each WebP, 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 WebP?
WebP is a modern image format Google released in 2010, built to make photos smaller on the web without a visible drop in quality. It supports both lossy and lossless compression as well as transparency, and typically produces files noticeably smaller than an equivalent JPG or PNG.
Every current browser — Chrome, Safari, Firefox and Edge — displays WebP, so it's an excellent choice for websites and for saving space on your own device. A handful of older apps still don't accept it, so when maximum compatibility matters, JPG remains the safest bet.
JPG vs WebP at a glance
| JPG | WebP | |
|---|---|---|
| Typical size (12 MP photo) | ≈4 MB | ≈1.5 MB |
| Opens on Windows / old apps | Everywhere | All modern browsers |
| Compression | Lossy (JPEG) | Lossy or lossless |
| Transparency | No | Yes (alpha) |
| First shipped | 1992 · JPEG group | 2010 · Google |
JPG to WebP — frequently asked
Are my JPG files uploaded anywhere?
No. Everything happens inside your browser, on your own device — no file, filename or hash leaves your machine. You can convert with Wi-Fi switched off.
How much smaller is WebP than JPG?
For most photos WebP lands roughly 25–35% smaller than a JPG at a matching visual quality, thanks to more modern compression. The exact saving depends on the image and the quality you choose.
Will the photo lose quality?
WebP is a lossy format like JPG, so there is some compression — but at the default quality the difference is hard to see. Use the before/after preview and the slider to strike the balance you want.
Does WebP open everywhere?
In every modern browser, yes. A handful of older desktop apps and some email clients still don't accept WebP; when you need to be certain it will open, convert to JPG instead.
Is this JPG to WebP converter free?
Yes — free, with no signup, ads or watermark, and no limit on the number of files beyond what your device's memory allows.
Can I convert a whole folder at once?
Yes. Drop in as many JPGs as you like and download every WebP together as a single .zip.