Application forms, marketplaces, and email systems often enforce a hard file-size limit. In those cases, getting below 500KB or 1MB matters more than applying an arbitrary compression percentage.
Toolit's target-size mode checks the encoded result automatically, adjusts quality first, and reduces dimensions only when needed to stay under the selected limit.
Start with these choices
Choose 500KB, 1MB, or 2MB, or enter the KB or MB value required by the destination.
The tool searches at the original dimensions and resizes only when quality changes are not enough.
Check the actual size as well as faces, text, and fine edges before submitting the image.
How to do it in your browser
- 1
Select a JPG, PNG, or WEBP image.
- 2
Choose 500KB, 1MB, 2MB, or enter a custom target size.
- 3
Choose the output format, run automatic compression, and inspect the actual result.
How automatic 500KB or 1MB compression works
A target is a maximum, so the result does not need to match the exact byte count. Toolit aims slightly below the limit to reduce the risk of a form rejecting the file.
- Step 1: encode at high quality and original dimensions
- Step 2: check the actual size and search the quality range
- Step 3: resize only if quality changes are not enough
- Step 4: show the under-limit result and preview
Automatic versus manual compression
Use target-size mode when a form specifies a maximum file size. Use manual settings when you already know the desired dimensions or quality percentage for a website or editing workflow.
Choose JPG, PNG, or WEBP
WEBP is efficient for photographs, while JPG offers broad compatibility. PNG preserves transparency and pixels losslessly, but because it has no quality percentage, a small target may require a larger reduction in dimensions.
Frequently asked questions
Why is the result slightly smaller than exactly 1MB?
The tool leaves a small margin to reduce the chance that a destination with a different size calculation rejects the upload.
Does automatic compression lower quality or dimensions first?
For JPG and WEBP, it adjusts quality at the original dimensions first and resizes only if that cannot meet the target.
Can PNG be compressed to a target size?
Yes, but PNG has no lossy quality setting, so the tool preserves transparency and adjusts dimensions. WEBP may be more efficient for photographs.
Does compression remove EXIF location data?
Yes. The newly encoded result does not retain extra metadata such as location and camera information.