KB Reducer logo KB Reducer

Reduce Image Size in KB — Free Online KB Reducer

Compress JPG, PNG, WebP images to exact KB size. No upload to server, no watermark, 100% free.

Drop your image here

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Select Image

Supports JPG, PNG, WebP · Max 10MB

No upload to server No watermark 100% free Works on any device

How It Works

Three steps. No registration, no software to install.

1

Upload

Drag & drop or click to upload your JPG, PNG, or WebP image.

2

Set Size

Enter your target KB or pick a quick preset — 20, 50, 100, 200 KB.

3

Download

Get your compressed image instantly. No watermark, no sign-up.

Common Use Cases

Exact KB sizes required by forms, portals, and applications worldwide.

20–50 KB · JPG

Pan Card & Aadhar Photo

Government portals require photos under strict KB limits.

Resize now →
100–200 KB

Job Application Photo

Meet standard photo size limits on job portals and HR systems.

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50 KB · 51×51 mm

Passport Photo

Compress passport photos to the exact size embassies ask for.

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20–50 KB exact

Exam Registration (RRB/SSC/UPSC)

RRB, SSC, UPSC and other exam forms with strict photo limits.

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Why Choose KB Reducer

Built for one job: getting your image to the exact KB size you need.

Complete Privacy

Images never leave your device — all compression runs in your browser.

Lightning Fast

Compression finishes in seconds, even on mobile.

100% Free Forever

No hidden fees, no premium tiers, no registration.

Exact KB Size

Smart binary-search compression hits your target within ±5 KB.

Works on Any Device

Phone, tablet, or desktop — no app to install.

No Watermarks

Your image stays clean. What you upload is what you download.

Frequently Asked Questions

How do I reduce image size in KB?

Upload your image, enter your target KB size (e.g. 100), then click Compress. Download your resized image instantly — everything happens in your browser.

Is KB Reducer free to use?

Yes, KB Reducer is 100% free. There are no hidden fees, no premium tiers, and no registration required.

Are my images uploaded to a server?

No. All compression happens locally in your browser using the Canvas API. Your images never leave your device — completely private, safe even for sensitive documents.

What image formats are supported?

JPG, JPEG, PNG, and WebP images up to 10MB.

Can I reduce multiple images at once?

Currently one image at a time. Batch compression is coming soon.