Resize & Compress Images
to Exact KB Size
Free online tool to resize images to exact kilobyte sizes. Perfect for government forms, passport photos, exam applications, and digital signatures. No signup required.
100% client-side processing — your images never leave your device.
Quick Resize
Upload an image and resize to any preset or custom size instantly.
Popular Presets
One-click resize for common image size requirements.
100KB Exact
Resize any image to exactly 100KB — perfect for government form uploads.
50KB Exact
Compress images to exactly 50KB for strict upload size limits.
20KB Exact
Reduce image or signature to 20KB for digital forms.
Bangladesh Govt Exam
300×300 px, max 100KB — Bangladesh government exam photo standard.
India Govt Exam
200×230 px, max 50KB — India SSC, UPSC, Railway exam photo standard.
Passport Photo
600×600 px, max 200KB — Standard passport photo dimensions.
Signature 20KB
300×80 px, max 20KB — Standard digital signature dimensions.
LinkedIn Photo
400×400 px — Optimized for LinkedIn profile pictures.
Bulk Resize
Upload multiple images and apply presets in batch. Download all as a ZIP file.
Why Choose SizeSnap?
Exact KB Targeting
Binary search compression achieves your target file size within ±2KB accuracy.
100% Private
All processing happens in your browser. Images never leave your device.
Lightning Fast
Client-side Canvas API processing. No upload waits, instant results.
Mobile Friendly
Responsive design works perfectly on phones, tablets, and desktops.
Batch Processing
Process multiple images at once. Download all results as a ZIP file.
All Formats
Supports JPG, PNG, WebP, GIF, and BMP. Convert between formats.
Free Online Image Resizer & Compressor
SizeSnap is a free online image resizer and compressor designed for everyday image processing needs. Whether you need to resize an image to exactly 100KB for a government form, compress a passport photo to meet strict upload limits, or create a digital signature file under 20KB, SizeSnap handles it all — directly in your browser.
Unlike other tools that upload your images to remote servers, SizeSnap processes everything on your device using the HTML Canvas API. Your images never leave your browser, ensuring complete privacy and security. Our proprietary binary compression algorithm achieves exact file sizes within ±2KB of your target.
Popular use cases include resizing photos for Bangladesh government exams (300×300 px, 100KB), India SSC/UPSC applications (200×230 px, 50KB), passport photos (600×600 px), and digital signatures (300×80 px, 20KB). SizeSnap supports JPEG, PNG, and WebP formats with batch processing and ZIP download capabilities.