Compression
Compress Image to 50KB
Compress JPG, PNG, or WebP images to approximately 50KB.
50KBOpen tool →Free · Private · No signup
Compress, Convert, and Resize Images to Target KB Sizes
Free browser-based tools for upload limits, forms, applications, profiles, and documents.
No upload requiredWorks in browserNo signupMobile friendly
Live compression example
Before
2.4 MB
Camera photo
After
94 KB
Target: 100 KB
Size reduction96%
Processed entirely in your browser — nothing uploaded
Popular Tools
The most-used tools for meeting upload requirements quickly.
Compression
Compress Image to 100KB
Compress JPG, PNG, or WebP images to approximately 100KB.
100KBOpen tool →Compression
Compress JPG to 50KB
Perfect for passport photos and strict upload limits.
50KB JPGOpen tool →Convert
WebP to JPG
Convert WebP images to standard JPG format instantly.
WebP → JPGOpen tool →Batch
Batch Image Compressor
Compress up to 5 images at once to your chosen KB target.
BatchOpen tool →Popular KB Targets
Jump straight to the compression tool for your required file size.
How It Works
Three steps to a compliant image — no account needed.
1
Choose your tool
Pick compression, conversion, resize, or batch processing.
2
Upload your image
Drag and drop or browse. Nothing is sent to our servers.
3
Download the result
Preview before and after, then download your optimized file.
Why CompressKB
Built for real upload limits
Government forms, job portals, and university systems often reject oversized files without explanation. CompressKB helps you get close to the KB limits those systems enforce.
One toolkit, every format
Compress to 50KB–500KB, convert WebP or PNG, resize for profiles, or batch-process multiple files — without switching between apps.
Clear results you can trust
See before-and-after previews, file sizes, dimensions, and quality settings. No hidden server uploads and no guesswork before you submit.
Private by Design
Your files are processed in your browser whenever possible.
Instant Results
No queues or signups. Compress, convert, and resize in seconds.
Target KB Sizes
Aim for common limits like 50KB, 100KB, and 200KB for form uploads.
Works on Any Device
Mobile-first design. Desktop, tablet, or phone — no app needed.
Explore All Tools
13 working tools grouped by compression, conversion, resize, and batch processing.
Compression
Compress Image to 100KB
Compress JPG, PNG, or WebP images to approximately 100KB.
100KBOpen tool →Compression
Compress Image to 200KB
Compress images to approximately 200KB for larger upload limits.
200KBOpen tool →Compression
Compress Image to 500KB
Compress images to approximately 500KB while preserving quality.
500KBOpen tool →Compression
Compress JPG to 50KB
Perfect for passport photos and strict upload limits.
50KB JPGOpen tool →Compression
Compress JPG to 100KB
Meet 100KB requirements for applications and forms.
100KB JPGOpen tool →PDF Tools
Browser-basedCompress scanned and image-heavy PDFs to target sizes. Best for photo-based documents.
PDF
Compress PDF
Compress scanned and image-heavy PDFs in your browser. Choose a target size and download a smaller PDF.
Browser-basedScanned PDFs
Browser-basedOpen tool →PDF
Compress PDF to 100KB
Compress scanned and image-heavy PDFs in your browser. Choose a target size and download a smaller PDF.
Browser-basedScanned PDFs
100KBOpen tool →PDF
Compress PDF to 200KB
Compress scanned and image-heavy PDFs in your browser. Choose a target size and download a smaller PDF.
Browser-basedScanned PDFs
200KBOpen tool →PDF
Compress PDF to 500KB
Compress scanned and image-heavy PDFs in your browser. Choose a target size and download a smaller PDF.
Browser-basedScanned PDFs
500KBOpen tool →PDF
Compress PDF to 1MB
Compress scanned and image-heavy PDFs in your browser. Choose a target size and download a smaller PDF.
Browser-basedScanned PDFs
1MBOpen tool →Frequently Asked Questions
Is CompressKB free?
Yes. All image tools are free with no account required.
Are my files uploaded to a server?
Your files are processed in your browser whenever possible. Image tools process files entirely in your browser.
What tools are available?
Compression to 50KB–500KB, JPG/PNG/WebP conversion, resize, batch compression, and browser-based PDF compression for scanned documents.
Is PDF compression available?
Yes. Compress scanned and image-heavy PDFs to target sizes like 100KB, 200KB, 500KB, or 1MB — processed in your browser.