In a world where visuals dominate everything from websites to social media, knowing how to compress image size is an essential skill. Whether you’re submitting a job application, optimizing your website for speed, uploading ID proofs, or sharing images online, you’ve probably faced size restrictions like:
- Compress image to 50KB
- Compress image to 100KB
- Compress image to 20KB
- Compress image to 200KB
- Compress image size in KB
If you struggle to bring images under the required size without losing much quality, this article will guide you through every method, tool, and best practice. You’ll also learn how to use **http://mbtokb.net/**—a free tool that helps convert, compress, and resize files easily.
Why Compress Image Size?
Before we dive into the “how,” let’s understand the “why.” Compressing image size offers several advantages:
1. Faster Website Loading
Large images slow down your site, increasing bounce rate. Compressed images boost SEO and improve user experience.
2. Faster Uploads
Whether you’re attaching images to emails or uploading to forms, small file sizes upload quickly even on slow networks.
3. Storage Efficiency
Compressing images helps you save storage space on your phone, laptop, or cloud storage.
4. Required for Official Submissions
Government portals, job application sites, and educational platforms often require images to be compressed to a specific KB limit.
How to Compress Image Size in KB (Step-by-Step Guide)
There are several ways to compress an image—online tools, mobile apps, computer software, and manual techniques. Here’s everything you need to know.
1. Compress Images Online (Fastest & Easiest Method)
The simplest way to reduce image size is by using an online compressor.
How it works:
- Upload your image.
- Choose the desired size (e.g., 50KB, 100KB).
- Download the compressed version.
✔ Recommended Tool: mbtokb.net
Your website mbtokb.net provides multiple online utilities including:
- Image size converter
- MB to KB converter
- Image compression
- Online file size reduction tools
Why use mbtokb.net?
- Free & easy
- No watermark
- Works on any device
- Compress to exact KB value
How to Compress Image to 50KB
Compressing an image to 50KB is common for:
- Online forms
- ID card uploads
- Application portals
- Passport-sized photo uploads
Steps to compress image to 50KB:
- Open mbtokb.net (or any online compressor).
- Upload your image (JPG/PNG).
- Select 50KB as target size.
- Click compress & download.
Tips for getting better quality at 50KB:
- Start with a lower resolution (like 800×600).
- Use JPG instead of PNG for photos.
- Reduce background complexity if possible.
How to Compress Image to 100KB
Images under 100KB maintain decent quality while being lightweight. Ideal for:
- Blogging
- Email attachments
- Forms with moderate restrictions
Steps:
- Visit mbtokb.net
- Upload your image.
- Choose 100KB.
- Download.
Tip:
100KB images often look almost identical to the original, especially when using smart compression tools.
How to Compress Image to 20KB
Compressing an image to 20KB is challenging because the file must be extremely lightweight. Often required for:
- Government form submissions
- Identity verification
- School/college forms
Steps:
- Upload your image to mbtokb.net or a similar tool.
- Choose 20KB.
- Resize image dimensions if necessary.
- Download the compressed output.
Tip:
If the tool struggles to reach 20KB:
- Convert PNG → JPG
- Lower width/height
- Reduce color depth
How to Compress Image to 200KB
This is easier and ideal for:
- Website banners
- Profile pictures
- Portfolio uploads
Steps:
- Visit mbtokb.net.
- Upload your high-resolution image.
- Set the target to 200KB.
- Download.
Quality Tip:
200KB is spacious enough for high-quality clarity, so always choose “High Quality” compression mode.
Other Methods to Compress Image Size
2. Reduce Image Resolution
Resolution directly affects size.
For example:
- 4000×3000 image → huge size
- 1200×800 image → smaller size
You can resize images using:
- Paint (Windows)
- Preview (Mac)
- Photoshop
- Mobile apps
3. Change Image Format
Formats produce different sizes:
| Format | Best For | Size |
| JPG | Photos | Small |
| PNG | Transparent images | Larger |
| WEBP | Web images | Very small |
| JPEG XL | High quality compression | Small |
Convert PNG → JPG to instantly shrink file size.
Tools like mbtokb.net offer format conversion as well.
4. Use Photo Editing Software (Advanced Method)
Adobe Photoshop
- Open the image.
- Go to File > Export > Save for Web.
- Choose JPG and adjust quality slider.
GIMP (Free)
- Export as JPG.
- Reduce quality percentage.
5. Use Mobile Apps
For Android/iPhone:
- Photo Compress 2.0
- Lit Photo Compressor
- Image Compressor
- Canva
These apps allow:
- KB-based compression
- Resolution control
- Batch compression
Best Practices for Image Compression
✔ Use JPG for photos
✔ Use PNG only when transparency is needed
✔ Avoid over-compression
✔ Always keep a backup of your original file
✔ Check image clarity before uploading
Why Use mbtokb.net for Image Compression?
http://mbtokb.net/ is a complete online tool for reducing file sizes.
Key Features:
- Exact size compression (e.g., 50KB, 20KB, 100KB)
- Free to use
- No installation
- Works on phone and PC
- Quick processing
- Multiple tools for conversions (MB → KB, KB → MB, etc.)
If you’re struggling with strict KB limits, this platform provides a hassle-free solution.
Common Problems & Solutions in Image Compression
Problem 1: Image becomes blurry
Solution:
- Reduce compression ratio
- Start with a higher resolution image
Problem 2: Tool cannot reach 20KB
Solution:
- Reduce dimensions
- Convert to JPG
- Lower color depth
Problem 3: PNG file too large
Solution:
- Convert PNG → JPG
- Use lossy compression
Problem 4: Image won’t upload after compression
Solution:
- Ensure correct format (JPG/JPEG)
- Check resolution requirements
- Make sure file name doesn’t contain special characters
Conclusion
Compressing images—whether to 50KB, 100KB, 20KB, or 200KB—is simple once you understand the right tools and techniques. Whether you’re optimizing a website, submitting documents, or managing digital storage, reducing image size helps in every scenario.
For fast, free, and accurate compression, mbtokb.net is one of the best platforms you can use. It allows exact KB-based compression, making it perfect for any requirement.
With the steps, methods, and tools covered in this detailed guide, you can now compress any image to any size with ease—even as low as 20KB.
FAQs
Q1. How can I compress an image to a specific size in KB?
Use an online tool like mbtokb.net. Upload your image, enter the target size (e.g., 50KB), and download.
Q2. Is it possible to compress an image to 20KB without losing quality?
Some quality loss is expected at 20KB, but using JPG format and smart compression minimizes it.
Q3. Which format gives the smallest file size?
WEBP and JPG usually give the smallest sizes.
Q4. How do I compress an image without changing dimensions?
Use online tools that offer quality-based compression instead of resizing.
Q5. Can I compress multiple images at once?
Yes, many tools and apps allow batch compression.
Q6. Why won’t my image reach exactly 50KB?
The final size depends on:
- Resolution
- Colors
- Format
- Quality
Lower these factors further until you reach the target KB.
Q7. What is the best free website for compressing images to KB?
mbtokb.net is one of the easiest free tools that supports precise KB compression.
Q8. Does compressing images affect SEO?
Yes! Smaller images lead to faster websites, improving SEO ranking.
Q9. Should I use JPG or PNG for web images?
Use JPG for speed and smaller size. Use PNG only when transparency is needed.
Q10. Can I compress images offline?
Yes—use Photoshop, GIMP, or mobile apps.