Drop your image here
One image to edit step by step · or several to batch optimise
Reads JPG · PNG · WebP · AVIF · HEIC · GIF · BMP · TIFF · SVG — writes JPEG · PNG · WebP · AVIF · JXL
JPG, PNG or HEIC in — WebP out, roughly 25–35% smaller than the JPEG at matching quality, with transparency intact.
The safe modern default
WebP is the format to reach for when you want a real saving without thinking about compatibility: every browser in use decodes it, it keeps an alpha channel, it encodes quickly, and it replaces both JPEG and PNG in one step. AVIF goes smaller, but WebP is faster to produce and better understood by older design software.
Smaller than JPEG, faster than AVIF
Around 25–35% under JPEG at the same quality, and encoding takes a fraction of the time AVIF needs. For most sites it is the best effort-to-saving ratio available.
One format for photos and graphics
Lossy for photographs, an alpha channel for logos and cut-outs. That is a single format where you would otherwise ship JPEG and PNG side by side.
libwebp on your machine
Google's own encoder compiled to WebAssembly, with sharp YUV conversion enabled so edges and saturated colour hold up. Your files never leave the tab.
Other image tools
Questions about this tool
How do I convert a PNG to WebP?
Drop the PNG and this page opens with WebP selected. Press Download. Transparency is carried over automatically, so a logo or a cut-out stays cut out.
Is WebP smaller than JPEG?
Yes, typically 25–35% smaller at the same visual quality, and it also handles transparency, which JPEG cannot. The default quality here is 80, which is visually clean for photographs.
Do all browsers support WebP?
Yes. Every browser in current use has decoded WebP for years, including Safari since version 14. It is the least risky modern format to serve.
Should I use WebP or AVIF?
AVIF if the smallest possible file is the priority and a few seconds of encoding is acceptable. WebP if you want a large, safe saving quickly, or if the file will pass through older design software. Both keep transparency.
Does converting to WebP lose quality?
Lossy WebP discards some detail, controlled by the quality dial. At 80 the difference is invisible at normal viewing size. Use Measure output size to see the real file size before committing.