A smaller image is useful only if it still looks right and works where you need it. Start with the Image Compressor, then compare both the preview and the output file size before downloading.
Compress and compare
- Choose one image. The tool accepts a JPG, PNG or WebP file up to 25 MB. HEIC files aren’t supported.
- Check the preview. Look closely at the parts that matter: faces, small text, logos, sharp edges and areas with fine detail. Compare them with the original if possible.
- Select Compress image, then compare file sizes. Check the output size against the original. If the output is larger, don’t assume compression helped; keep the original or try another setting or supported output format.
- Adjust quality if available. For JPG and WebP, quality starts at 80% and can be changed. If the preview shows distracting artifacts, try a higher setting. If it looks good but the file is still too large, try a lower setting, select Compress image again and compare.
- Download only when the trade-off works. Confirm the output format and size, then download. Open the downloaded file to check that it looks right and works in its intended destination.
Processing and previewing happen locally in your browser. The image dimensions stay the same, so this tool tries to reduce file size through re-encoding rather than resizing the image.
Choosing settings for your image
For a photograph, start with the default quality and inspect areas such as hair, foliage and smooth backgrounds. Lower quality may make artifacts more noticeable; increase it if those details matter.
For a graphic or screenshot, pay particular attention to text and crisp edges. If those become hard to read, a smaller file may not be worth the trade-off.
PNG quality is not adjustable in this tool. You can explicitly choose WebP output for a PNG, then compare the result and file size. Before using WebP, check that the website, app or recipient you’re sending it to accepts that format.
Mistakes to avoid
- Judging only by file size. A smaller file can still be unsuitable if text or important details look worse.
- Assuming the output must be smaller. Re-encoding can produce a larger file, so compare sizes before downloading.
- Expecting smaller dimensions. The compressor keeps the original dimensions; use a separate resizing workflow if you need fewer pixels.
- Overwriting your only original. Keep it in case you need to try different settings or produce another format later.
- Assuming metadata will remain. Re-encoding may remove camera metadata. Keep the original if that information matters.
Frequently asked questions
What quality setting should I use?
For JPG and WebP, start at the default 80%, then compare the preview and output size. Raise quality if important details look worse, or lower it if you need a smaller file and the result remains acceptable.
Why is my compressed image larger than the original?
Re-encoding can sometimes produce a larger file. Compare the output with the original and, where available, try another quality setting or a supported output format.
Does compression change image dimensions?
No. This tool keeps the original dimensions. You’ll need a separate resizing workflow if you want fewer pixels.
Can I compress a HEIC image?
Not with this tool. It accepts JPG, PNG and WebP files.
Will my photo’s camera metadata be preserved?
Not necessarily. Re-encoding may remove camera metadata, so keep the original if you need that information.