Logo ImgSmaller

Compress Image to 20KB

Free online image compressor to precisely compress images to 20KB. Supports cropping, resizing, and conversion to JPG/JPEG, WEBP, PNG, AVIF, PDF with secure processing and auto-delete.

Drag & Drop or
JPG PNG WEBP AVIF GIF
What is Zero-Upload?

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

KB
Output:
Like on Facebook Follow on GitHub Subscribe on YouTube

What users say

Please log in to write a review. Log in

Support ImgSmaller

Found it useful? Add a link to help others discover privacy‑friendly image compression.

Link to Us

Share this tool

WhatsApp X Facebook LinkedIn Telegram Reddit

Sharing helps others find this free tool.

Compress Image to 20KB

  1. Add Images.
  2. Target Size: 20KB.
  3. Crop / Width/Height (Optional).
  4. Compress → Download Compressed Image.
By ImgSmaller Team 3 min read

Compress Image to 20KB – Precise & Private

Quickly compress images to exactly 20 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 20 KB? ›
Use the target slider for 20 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.

20KB — Why?

20KB is ideal for faster uploads, email attachments, and forms that require small file sizes, while maintaining visual quality.

Best practices to hit 20KB with good quality

Limit width to ~800px, crop unnecessary areas, and avoid heavy shadows or grain.

Popular targets:

Compress image to 5KB Compress image to 10KB Compress image to 30KB Compress image to 50KB Compress image to 100KB Compress image to 200KB Compress image to 250KB Compress image to 300KB Compress image to 400KB Compress image to 500KB
before-and-after-comparison-sample-image
Before and after comparison sample image