How to use the Image Compressor
- 1Drop an image onto the upload area or choose a file.
- 2Pick an output format and adjust the quality slider, or set a target size in KB.
- 3Compare the preview and file sizes.
- 4Download the compressed image.
Supported formats and limits
- Input: JPG/JPEG, PNG, WebP up to 25 MB.
- Output: JPEG or WebP with adjustable quality; PNG is lossless, so its quality slider is disabled.
- Maximum 40 megapixels per image.
- Target size is approached by lowering quality, then dimensions in 20% steps. It is not guaranteed.
- Metadata such as EXIF location data is removed during re-encoding.
Common uses
- Meeting an upload limit on a job portal or government form.
- Making product photos lighter for an online shop.
- Sending photos by email without attachment size errors.
Frequently asked questions
Why is my PNG barely smaller?
PNG is lossless, so the browser cannot trade quality for size. Convert to WebP (keeps transparency) or JPEG for much larger savings.
Why did the file get bigger?
Already-optimised images can grow when re-encoded at high quality. Lower the quality or keep the original — the tool shows the size so you can decide.
Is a target size guaranteed?
No. The tool searches for the highest quality under your target and reduces dimensions if needed. If it still cannot reach the target it tells you.