Free Image Size Reducer (KB)
Reduce any photo to an exact size in KB — 20KB, 50KB, 100KB or whatever your form asks for. Type the target size and the tool keeps as much quality as possible. Free, no sign-up, nothing uploaded.
- 100% free
- No limits
- No upload
- No watermark
- Works on mobile
How to reduce image size in KB
- 1
Add your image
Choose or drag and drop one or more JPG, PNG or WebP images.
- 2
Type your target size
Enter the size limit in KB from your form or website, for example 20, 50 or 200. The format is set to JPG for the smallest files.
- 3
Resize
Press the Resize button. The tool finds the highest quality that fits, and only reduces the dimensions if it must.
- 4
Download
Check the new file size under each image and download it.
Hit any file-size limit in one go
For job applications, exam forms, government portals, email attachments and websites.
Exact KB target
Type any size in KB and the tool automatically gets the image under it — no trial and error.
Best quality that fits
Quality is lowered first; width and height are only reduced when needed, so photos stay as clear as possible.
JPG, PNG & WebP input
Open any common image format and save as JPG or WebP for the smallest size.
Private — nothing is uploaded
Your photos are processed on your own device. They never leave your phone or computer.
Free, no sign-up, no watermark
Resize as many images as you want. No account, no limits, no logo added to your photo.
Bulk resize
Add many images at once and download each one, all with the same settings.
Works on phone and computer
Use it in Chrome, Safari, Edge or Firefox on Android, iPhone, Windows or Mac — no app to install.
Reduce image size in KB — FAQ
How do I reduce image size to a specific KB?
Add your image above, type the size you need in “Target size (KB)”, keep the format as JPG, then press the Resize button and download.
Will reducing the KB size lower the quality?
Some compression is needed to make a file smaller, but the tool keeps the highest quality that fits your limit. Moderate targets (50 KB and up) usually look almost identical.
Why can’t I set a target size for PNG?
PNG is lossless, so its size cannot be tuned with quality. Choose JPG or WebP to use a target size.
Can I reduce the size of many photos at once?
Yes. Add several images and they will all be resized to the same target size.
Are my images uploaded?
No. Everything is processed in your browser. Your photos never leave your device.
Help keep Qu-Outil free
I build and run these tools in my free time and keep them free for everyone — no ads, no sign-up. If they helped you, buy me a chai or coffee via Google Pay or any UPI app. Your support keeps me building more free tools. Completely optional.
samarthdalela@oksbiThe button opens Google Pay, PhonePe or Paytm on your phone. On desktop, scan the QR.
Scan to pay ₹50
Works with any UPI app