Image Format Converter
Convert an image between PNG, JPG and WebP formats.
Upload any image and choose an output format — PNG for lossless quality and transparency, JPG for smaller photo files, or WebP for modern, efficient compression. The conversion happens by drawing the image onto a canvas and re-exporting it in the chosen format, all inside your browser.
PNG, JPG and WebP actually solve different problems
PNG uses lossless compression and supports full transparency, which makes it the right choice for logos, icons, screenshots with text, and anything where sharp edges and exact colours matter. JPG uses lossy compression tuned for photographs, discarding detail the human eye is less sensitive to in exchange for much smaller files, but it doesn't support transparency at all. WebP is a newer format that generally achieves both better compression than JPG and optional transparency like PNG, combining the strengths of both older formats for most modern browsers.
Why transparency disappears when converting to JPG
JPG's compression algorithm was designed around photographs, which are fundamentally opaque, so the format has no mechanism at all for storing which pixels should be see-through. When a PNG or WebP image with transparent areas is converted to JPG, those transparent pixels have to be filled with some solid colour — typically white — which is why logos with transparent backgrounds can suddenly show an unwanted white box once converted to JPG.
Browser support is the main reason WebP isn't used everywhere yet
WebP has been supported by all major modern browsers for several years now, but some older software, certain email clients, and a handful of legacy content management systems still don't handle it correctly. For maximum compatibility across every possible viewer, JPG or PNG remain the safer default; WebP is worth using specifically when you control the environment it'll be viewed in, like your own website.
How to use it
- Upload an image using the box above.
- Choose your target format: PNG, JPG or WebP.
- Preview the converted image.
- Click Download to save it in the new format.
Common ways people use this tool
Converting a screenshot to a smaller format
Convert a large PNG screenshot to JPG when transparency isn't needed, to reduce its file size for sharing.
Preparing a logo with transparency for a website
Convert a photo-format logo to PNG to preserve a transparent background for use over different coloured page sections.
Modernising images for a personal website
Convert existing JPG or PNG images to WebP to take advantage of better compression on a site you control.
Tips for getting the best results
- Keep a PNG master copy of any image with transparency before converting to JPG, since transparency can't be recovered afterward.
- For photographs destined for the web, WebP or JPG at moderate quality usually gives the best balance of size and appearance.
- For logos, icons, and screenshots with sharp edges or text, PNG avoids the slight blurring that JPG compression can introduce around hard edges.
- Test how a converted image actually looks at its final display size before finalizing, since compression artefacts are more visible at some sizes than others.
Frequently asked questions
Will converting to JPG lose transparency?
Yes — JPG doesn't support transparency, so any transparent areas will be filled with white when converting from PNG.
Is WebP supported by all browsers?
Nearly all modern browsers support WebP; if you need maximum compatibility with older software, JPG or PNG are safer choices.
Does this reduce file size?
Often yes, especially converting from PNG to JPG or WebP for photographic images, since those formats compress photos more efficiently.
Which format should I use for a logo?
PNG is usually best for logos since it preserves sharp edges and transparency without introducing compression artefacts.
Can I convert an animated GIF using this tool?
This tool processes static images; animated GIFs would only have their first frame captured, so a dedicated GIF tool is better for animations.
Does converting an image multiple times degrade its quality?
Yes, repeatedly re-saving a lossy format like JPG can compound quality loss each time — always convert from the original source file rather than a previously converted copy when possible.
Is PNG always a larger file than JPG?
Generally yes for photographic content, since PNG's lossless compression can't shrink photo detail the way JPG's lossy compression can, though for simple graphics with few colours, PNG can sometimes be smaller.
Why might I want to keep a master copy in PNG even if I mostly use JPG or WebP for the web?
A lossless PNG master preserves full quality for any future edits or re-exports, while repeatedly editing and re-saving a lossy JPG can compound quality loss over time — keeping an uncompressed original as a source of truth avoids that gradual degradation.
Does file extension alone determine an image's actual format?
Not always reliably — while the extension usually matches the true format, a mismatched or renamed file extension can occasionally cause confusion; this tool reads the actual image data itself, not just the filename, to determine how to process it correctly.
Will converting a photo between formats multiple times gradually reduce its quality?
Yes for lossy formats like JPG — each re-save discards a little more detail, so it's best to always convert from a single original source file rather than repeatedly re-converting an already-converted copy.