Image Size Tools
Private & free

Increase Image Size in KB

100% Free

Increase a JPG, PNG, or WebP file to a preset from 20KB to 500KB, or enter a custom target for forms with minimum file-size rules.

  • No Sign-up
  • Private & Secure

Upload Image

Your privacy is important

Your images are processed in your browser and never uploaded to our servers.

Increase Settings

Current: upload an imageTarget: 200 KB

Increase Method

Output Format

90%
Higher quality = larger base fileMetadata padding keeps visual quality

Upload an image to begin.

Preview & Download

Your increased image will appear here

Upload an image, choose a target KB, then generate the file in your browser.

  • Target Size in KB

    Choose a preset from 20KB to 500KB, or enter a custom target.

  • Multiple Methods

    Choose metadata padding, subtle noise, or re-encoding based on your needs.

  • Secure & Private

    All processing happens in your browser. Your images never leave your device.

  • Works on All Devices

    Desktop, tablet, and mobile. No software installation needed.

How It Works

  1. 1. Upload Image

    Choose an image from your device.

  2. 2. Set Target Size

    Enter your desired KB size or choose a quick target.

  3. 3. Adjust Settings

    Choose method, format, and quality.

  4. 4. Download

    Preview and download your increased image.

Frequently Asked Questions

Why do I need to increase image size in KB?

Some forms and upload systems require a minimum file size. This tool helps you create a file closer to that required KB value without uploading it to a server.

Can I increase an image to exactly 20KB, 50KB, 100KB, 200KB, or 500KB?

Choose a preset or enter the target KB value. The tool aims for that size, but the final byte count can vary slightly because each image format stores data differently.

Which method should I choose?

Add Metadata is best when you want no visible quality change. Add Noise or Re-encode can be useful when a platform strips metadata or requires a newly encoded image.

Will increasing file size improve image quality?

No. Adding bytes cannot restore missing detail. The metadata method keeps the visible image unchanged, while noise and re-encode methods can make small visual changes.

Is it safe to increase image size online?

Yes. The image is processed locally in your browser and is not sent to our servers.

Choose a 20KB, 50KB, 100KB, 200KB, or 500KB target

Use a preset for a common minimum file size, or enter any custom target from 1KB to 10,000KB. The metadata method keeps the pixel dimensions and visible image unchanged.

The target must be larger than the original file. If you need to reduce the file instead, use the image compressor.