Image compressor & resizer
Resize a photo, adjust quality and compare file sizes.
See examples and explanations ↓Inputs and files are processed in your browser. Nothing is automatically saved; closing or reloading the tab clears your work.
What this tool explores
Reduce photo dimensions and file size for attachment limits. Your original file is unchanged.
Step by step
- Choose one JPG, PNG, WebP, HEIC or HEIF image.
- Set maximum width, format and quality. A target file size is optional.
- Check the output and its size, then download the image.
What to look for in these results
Compare size and visual quality together. JPG and WebP use lossy compression; transparent areas become white. If the size target is missed, reduce dimensions. Output may be larger than the original.
Questions about this tool
Where are files and inputs stored?
They are processed in browser memory, without uploads or automatic saving. Download results you need, and close the tab on a shared device.
Are original HEIC and HEIF phone photos supported?
HEVC-encoded HEIC and HEIF still photos are supported, up to 100 MB and 200 MP per file. A file containing multiple photos uses its primary image. Output is JPG or WebP, at most 4,096 px per side. Large images may exceed device memory or browser capabilities. RAW, DNG, GIF, SVG and video are unsupported.