Skip to content

Image Format Converter

In-browser only Never uploaded to a server PNG · JPEG · WebP
Converted in your browser — your images never leave your device. Built on the Canvas API.

Your converted images will appear here.
Related tools View all

Overview

Convert images between PNG, JPEG and WebP in your browser

Batch-convert up to 20 PNG, JPEG and WebP images at once, tune output quality for JPEG and WebP, and download each file or grab them all as a ZIP — every step runs on your device.

  • Convert PNG, JPEG, and WebP both ways
  • Batch up to 20 images in one pass
  • Quality slider for JPEG and WebP output
  • Download files individually or as a ZIP
  • Runs entirely in your browser
  • Images are decoded and converted in your browser
  • Nothing is uploaded to a server
  • Conversion runs via the Canvas API on your device
  • Files never leave your device
  • No copies are kept after you close the tab
  • Shrink page weight by serving photos as WebP
  • Convert PNG screenshots to JPEG for email attachments
  • Turn a WebP download into PNG or JPEG for older software
  • Flatten a transparent PNG to JPEG for a print service
  • Batch-convert a folder of mixed images to one format

Step by step

How to convert image formats

  1. 1
    Add your images

    Drag PNG, JPEG, or WebP files onto the drop area, or browse to select them. You can queue up to 20 images at once.

  2. 2
    Pick a target format

    Choose PNG for lossless output, JPEG for the smallest photos, or WebP for the best balance of quality and size on the web.

  3. 3
    Set the quality

    For JPEG and WebP, drag the quality slider. Around 80 is a good starting point — high enough to look sharp, low enough to stay small.

  4. 4
    Convert and download

    Select Convert images. Download each result on its own, or grab every file at once as a ZIP archive.

Get the best result

Tips for choosing a format

  • Use WebP for most web images

    WebP is typically 25–35% smaller than JPEG and far smaller than PNG at similar quality, and every modern browser supports it.

  • Keep PNG for transparency

    Logos, icons, and screenshots with transparent areas should stay PNG or WebP. Converting them to JPEG fills transparent pixels with white.

  • Lower quality for large batches

    Dropping the quality slider to 60–70 still looks good for most photos and noticeably shrinks file sizes across a whole batch.

  • Converting JPEG to PNG will not add detail

    PNG is lossless, but it cannot recover detail JPEG already discarded — the file just gets larger. Convert only when you need transparency or a lossless source.

Frequently asked questions

How do I convert PNG to WebP without losing quality?
Add your PNG file, choose WebP as the target format, and raise the quality slider toward 100. At maximum quality WebP preserves detail and transparency while still producing a smaller file than the original PNG.
Why does my PNG lose transparency when converting to JPEG?
JPEG has no transparency (alpha) channel. When you convert a transparent PNG to JPEG, transparent areas are filled with a solid white background. To keep transparency, convert to WebP or keep the image as PNG.
How much smaller is WebP compared to PNG or JPEG?
WebP is usually 25–35% smaller than JPEG and considerably smaller than PNG at similar visual quality. Exact savings depend on the image — photographs compress more than flat graphics.
Which image format is best for my website?
Use WebP as your primary format — it offers the best mix of quality and file size and is supported by all modern browsers. Use PNG for logos, icons, and images that need transparency. Use JPEG for photographs when WebP is not an option.
Can I convert multiple images at once?
Yes. Drag and drop up to 20 images, or add them with the file picker. Every image in the queue shares the same target format and quality. After converting, download files individually or all at once as a ZIP archive.
Are my images uploaded to a server?
No. Conversion runs entirely in your browser using the Canvas API. Your images are never sent anywhere — they stay on your device the whole time.
How do I open a WebP file on my computer?
Modern browsers and recent versions of Windows Photos and macOS Preview open WebP natively. If you need maximum compatibility with older software, convert the WebP back to PNG or JPEG with this tool.