How to compress an image to an exact file size
Use an exact-size image compressor when a form says your image must be under a specific limit such as 50 KB, 100 KB, 500 KB or 1 MB.
Exact-size image compression
Compress images to the size you need
Create a verified image safely below your target size while preserving the highest practical quality.
- Processing stays in your browser
- No upload and no storage
- Free, one image at a time
Private image compressor
Prepare your image
Choose one image, set the limit, and download a verified result. Your original is never changed.
Loading workbench...
Advanced size range
Use this only when a form requires your image to be between two file sizes.
Resize image
Manual dimensions
Enter a width, a height, or both. No crop or fill is applied in this step.
Choose an image to preview planned dimensions.
Aspect ratio is off. Exact width and height may distort the image.
Selected image
Ready to compress
- Original size
- -
- File type
- -
- Output format
- Auto recommended
- Dimensions
- -
- Planned output
- Original dimensions
- Target
- Under 50 KB
Preparing your image
Checking the image safely in your browser.
Verified result
Your image is ready
Safely below your selected limit.
- Dimensions
- Output format
- Reduction
- Target status
- Private metadata
- Checking
The downloaded file was created and verified entirely in this browser.
Common limits
Start with a popular target
Use exact KB/MB pages when a form rejects files over a specific size.
Choose a tool
Find the right private file tool
Choose the tool that matches the upload problem you are trying to solve. Your files stay private - even from us, and no upload is required.
Image tools
Compress, resize and choose JPG, PNG or WebP output from the private image workbench.
PDF tools
Convert images to PDF, compress image PDFs and export one PDF page as an image.
Platform resize presets
Start from reviewed platform dimensions, then edit width, height, format and target size yourself.
ZIP/file tools
Package multiple local files together for download without uploading them.
Learn
Guides for common upload problems
Use these guides when you need to understand file size, formats, privacy or why a form keeps rejecting an image.
How to compress an image without uploading it
No-upload compression means your selected image is handled on your device for the tool workflow instead of being sent to a server for processing.
Image file size guide for uploads
Image file size depends on dimensions, format, compression settings and image detail. The same 1200 x 800 image can be small or huge depending on what it contains.
JPEG vs PNG vs WebP
JPEG, PNG and WebP solve different problems. The best format depends on whether you need small photo files, transparency, sharp graphics or broad upload compatibility.