Compress Image to Specific Size
Need an image at an exact file size? Whether 20KB for an exam form, 100KB for a passport application, or 500KB for a web upload — precise KB targeting eliminates the guesswork. Enter any target from 5KB to 5MB and download the exact result. PhotoSizeTool gives you precise control over image file size — set any target in KB and download the result. Works entirely in your browser with no signup required.
What You Need to Know
Most online compressors give you a quality slider — low, medium, high — but no control over the actual output size. You need exactly 47KB, not 'medium quality.' Our tool works differently: enter your target in KB, and the algorithm iteratively adjusts compression parameters until the output matches. This is the difference between hoping your file is small enough and knowing it is.
How It Works
Step 1: Choose your tool
Select the compressor that matches your target size — presets or custom.
Step 2: Upload your photo
Works with JPG, PNG, and WebP from any device.
Step 3: Set your target
Enter the exact KB value you need or choose from common presets.
Step 4: Download instantly
Save the compressed image and use it anywhere.
Benefits
- Compress to any target size (5KB to 5MB)
- Works with JPG, PNG, and WebP files
- Browser-based — no uploads to external servers
- Mobile and desktop compatible
- No signup or payment required
- Fast processing — results in seconds
Pro Tip
Bookmark this tool before exam season starts. When millions of candidates flood portals near deadlines, having your photo already compressed saves the panic of last-minute technical failures.
Frequently Asked Questions
How does the exact-KB compression work?
The tool iteratively adjusts JPEG/PNG quality levels until the output file size matches your target within a few KB. This gives precise control over the final size.
What is the maximum file size I can upload?
The tool handles source files up to 50MB. Processing time depends on your device but most images compress in under 5 seconds.
Is this really free?
Yes — the compressor is free to use with no hidden costs, signup requirements, or watermarks on your output images.
Are my photos uploaded to a server?
No. All processing happens locally in your browser using JavaScript. Your images never leave your device.
Which formats are supported?
JPG/JPEG, PNG, and WebP — the three most common image formats used across web, mobile, and document uploads.