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Compress Image to Target KB

Compress an image toward the file size you need.

Processed in your browser first

Step 1

Choose an image

Choose an image to get started.

Step 2

Choose options

Compress to Target KB

Prepare your image for an upload-size limit.

Original Size—
Maximum Size100 KBCalculated on compression

1 Choose your maximum file size

Choose your upload-size limit. A target is not guaranteed. Dimensions may be reduced when needed; choose whether to keep them in Advanced options.

Advanced options
Resize policy

Minimum quality: Auto. FileFit keeps a conservative quality floor and will not force unsafe or meaningless settings.

Your image is processed in this browser first. An available server fallback requires your confirmation before upload.

Processed on your device · No upload needed

Three simple steps

  1. Choose

    Select your image.

  2. Compress

    Choose your target size.

  3. Download

    Save your result.

  • Private processingWorks in your browser first.
  • FastReady in a few clicks.
  • JPG, PNG, WebPPhotos and graphics.
How your file is processed

Safe supported images are processed in this browser. When server fallback is enabled and available, FileFit explains temporary processing and asks for explicit confirmation before uploading. Otherwise no upload occurs.

File privacy details

About this tool

Compress Image to Target KB

Target KB means 1 KB equals 1,024 bytes. Bounded attempts adjust quality and, when needed, dimensions; an unreachable target returns an explicit failure instead of a size guarantee.

  • Binary KB is defined
  • Tolerance is explained
  • No exact-size or quality guarantee

Need help?

Review tool guidance and privacy details.

Visit Help Center

How to use it

How to use Compress Image to Target KB

  1. 1
    Choose a supported image.
  2. 2
    Choose a preset or enter a target size.
  3. 3
    Process the image and review the reported target result.

Good to know

Helpful notes

Use Target KB when a form or upload has a file-size limit. Choose a preset or enter a KB target; FileFit makes bounded attempts to fit beneath it.

The result depends on image detail, format, quality and whether resizing is allowed. A target is not a guarantee; FileFit reports when it cannot reach the requested size with your settings.

Keep working

View all tools
Compress Image Reduce image file size while balancing quality. Resize Image Change image width and height in pixels.

Before you begin

Compress Image to Target KB questions

Does Target KB guarantee an exact size?

No. FileFit reports whether the target was reached instead of presenting an over-target result as success.

Can dimensions change?

The recommended setting may reduce dimensions only when needed. You can choose to keep the original dimensions.

How is this different from Compress Image?

Target KB starts with a requested maximum size and reports whether it was reached. Compress Image is better for general size reduction when you do not have a required limit.

Is my image uploaded?

Supported images are processed locally first. Any available temporary server path requires clear confirmation before upload.