Compress Image to 456KB

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What is Zero-Upload?

All processing happens in your browser. No data is sent to our servers. Learn More

Advanced Settings

Once you’ve made any custom changes, click Compress to apply them.

KB
Output:
EXIF / metadata:

What users say

Kevin Brooks, Florida, USA

ImgSmaller is a simple and useful image compression tool with good quality results and an easy interface. It works well for quick optimizations, though I’d love to see more advanced features and format options in future updates.

Ryan Thompson, USA

ImgSmaller makes image compression fast, simple, and perfect for improving website speed without sacrificing quality.

Michael Anderson, California, USA

ImgSmaller is an excellent image compression tool that helps reduce image size without losing quality. It’s fast, easy to use, and perfect for optimizing JPG, PNG, and WebP images for better website speed and SEO performance. The clean interface and privacy-focused zero-upload feature make it a reliable choice for developers, bloggers, and designers.

Kumari sunidhi

It's is so useful, thank you so much❤😊 U can provide the facility of converting compressed image results into pdf format, that will be so helpful. chatgpt told me about this website

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Compress Image to 456KB

  1. Add Images.
  2. Target Size: 456KB.
  3. Crop / Width/Height (Optional).
  4. Compress → Download Compressed Image.
By ImgSmaller Team 3 min read

Compress Image to 456KB – Precise & Private

Quickly compress images to exactly 456 KB (or nearby) while preserving clarity. Resize, crop, rotate and convert formats—fully in the browser with optional Zero‑Upload 100% privacy mode for sensitive content.

Adaptive Engine

Balances compression with sharpness in icons, UI elements and gradients.

Exact Targets

Hit strict limits (forms, portals, email) from 1 KB up to 2 MB.

Zero‑Upload Mode

Keep everything local—offline capable after initial load for maximum privacy.

Common Use Cases

  • Job portal & application forms
  • Email attachment limits
  • E‑commerce product galleries
  • Performance budgets (LCP-friendly)
  • Blog / marketing hero images
  • UI & dashboard assets
  • Client previews & NDA media
  • Documentation screenshots

FAQ

How do I get exactly 456 KB?
Use the target slider for 456 KB, optionally crop and reduce dimensions. The engine iteratively tunes quality.
Will the quality suffer?
Most images stay visually clean; extreme downscales or ultra-low targets may soften detail slightly.
Does Zero‑Upload affect results?
No quality loss—only processing location changes (local vs server). Privacy is maximized in Zero‑Upload.
Which format should I choose?
JPG for photos, WEBP for smallest modern size, PNG for transparency-critical graphics.

456KB — Why?

456KB is ideal for faster uploads, email attachments, and forms that require small file sizes, while maintaining visual quality.

Best practices to hit 456KB with good quality

Crop to the essential subject, reduce dimensions gradually, and let the compressor optimize JPG quality to reach your target.

Popular targets:

before-and-after-comparison-sample-image
Before and after comparison sample image