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Image tool

Convert images online — JPG, PNG and WebP, no upload

Switch any picture between PNG, JPG and WebP in one click. Nothing is uploaded, so screenshots, scans and personal photos stay on your device.

Perfect for
A form that rejects PNG and only accepts JPG Turning heavy screenshots into light JPGs Publishing WebP to speed up a website Keeping transparency by moving to PNG Converting a whole folder in one go
How to convert your images
1
Add imagesClick the upload area or drag files in. You can select many at once.
2
Pick a target formatJPG for photos, PNG for transparency, WebP for the smallest file on the web.
3
Hit convertEach file is re-encoded locally at its original pixel dimensions.
4
DownloadSave the converted copies straight to your device.

Settings

Applies to JPG and WebP. PNG is lossless, so this setting has no effect there.

Tip: converting a PNG screenshot to JPG often cuts 70–90% of the file size on its own.

Click to choose images, or drag them here

JPG, PNG, WebP, GIF (first frame) — select as many as you like

Which format should you actually pick?

When a form refuses your file, it is usually the formatA great many upload portals only accept JPG. If your screenshot is a PNG, no amount of compression will help — you have to change the format first.

Every image format makes a different trade-off between quality, file size and features such as transparency. Picking the right one is often a bigger win than any amount of compression: a PNG screenshot converted to JPG routinely sheds 70–90% of its weight before you touch a single quality setting.

Format comparison

FormatBest forTransparencyTypical size
JPGPhotos, scans, anything being uploaded to a formNoSmallest for photos
PNGLogos, screenshots with text, graphics needing a clear backgroundYes5–10× larger than JPG on photos
WebPModern websites and appsYesAbout 25–35% smaller than JPG

Why convert in the browser instead of online?

Most free converters ask you to upload your file, process it on their server and hand it back. That means your screenshot of a bank statement, your passport scan or an unreleased product photo is briefly stored on someone else's machine. This tool uses the browser's own canvas to re-encode the image, so the file never crosses a network boundary at all.

  • No upload, no storage. Your images exist only in your browser's memory and are discarded when you close the tab.
  • No account, no daily cap. Convert one image or a hundred — the limit is your device, not a quota.
  • Original pixel dimensions. Converting changes the encoding, not the size of the image.
Rule of thumb: uploading a photo to a form → JPG. Publishing on the web → WebP. Keeping a transparent logo → PNG.

Frequently asked questions

Is the image converter free?
Yes. There is no sign-up, no daily conversion limit and no watermark on the files you download.
Which formats can I convert between?
JPG, PNG and WebP in any direction. GIF files can also be opened, but only the first frame is converted, because the three output formats here are still images rather than animation.
Will converting change the pixel dimensions?
No. The original width and height are preserved and only the encoding changes. If the image is also too large in pixels, resize it first with the image resizer and convert afterwards.
Which format produces the smallest file?
For photographs, WebP is typically about 30 percent smaller than JPG at comparable quality, while JPG remains the safest choice because every platform accepts it. PNG is the largest of the three but is the only one that keeps transparency.
A form rejected my screenshot. Will converting help?
Usually yes, and it is the most common reason people arrive on this page. Many portals accept JPG only, so converting a PNG screenshot to JPG typically removes 70 to 90 percent of the file size before you change any quality setting.
Does converting to JPG lose transparency?
Yes. JPG has no alpha channel, so transparent areas are filled with a solid colour. Keep PNG or WebP if the transparency needs to survive.