Image Resizer
Set dimensions, choose a format and resize precisely.
Convert a supported image to JPEG, PNG, WebP, BMP or browser-supported AVIF. One shared on-device engine handles your format selection and creates an actual downloadable file.
Preparing your tool…
Supported inputs are JPEG, PNG, WebP, AVIF, BMP and GIF when the browser can decode them. GIF uses its first frame; animated export is not supported. AVIF output is shown only after an actual encoder check. PNG/WebP/AVIF can retain transparency; JPEG and 24-bit BMP use white. BMP output is uncompressed and often much larger. The converter preserves dimensions but strips metadata. Files must be at most 20 MB; output is capped at 16 million pixels and 8,000 pixels per side. Use the Image Resizer first for a larger image. HEIC/HEIF and TIFF/TIF require additional decoders and are not accepted in this version.
Yes. Upload the supported source image and choose PNG or a browser-supported WebP output. JPEG and JPG refer to the same format.
HEIC and TIFF are not supported. GIF input is decoded as a still first frame, and its animation is not preserved.
Decoding AVIF and encoding it are different capabilities. The tool offers AVIF output only if a small real encoding test returns an AVIF file.