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Compress Image

Shrink JPG, PNG, and WebP files to an exact KB target or a quality level you choose - all in your browser, with nothing uploaded.

Image Compressor: Reduce Photo Size to an Exact KB Target

Compress a photo down to 20 KB, 50 KB, 100 KB, 500 KB, or any size a form asks for. Pick a target and the compressor searches for the highest quality setting that still fits, or switch to the quality slider when you want manual control. JPG, PNG, and WebP are all supported, and the whole thing runs on canvas inside your own browser - the file is never uploaded, there is no watermark, and there is no limit on how many images you compress.

How to Compress an Image

1

Upload your image

Pick a JPG, PNG, WebP, or GIF file from your device. It stays on your computer - nothing is sent to a server.

2

Set a target size or quality

Type the exact KB size a form or upload limit requires, tap one of the presets, or switch to the quality slider for manual control.

3

Download the compressed file

Check the before and after sizes, then save the smaller image in JPG, PNG, or WebP.

When You Need a Smaller Image

  • Job applications and government forms that cap uploads at 50 KB, 100 KB, or 200 KB
  • Speeding up a website or blog by shrinking hero images and thumbnails
  • Getting a photo under an email attachment limit without cropping it
  • Trimming product photos before uploading them to a marketplace listing
  • Reducing screenshots so they fit inside a bug tracker or support ticket
  • Saving storage space on a phone or laptop full of large camera files

Image Compression FAQ

How does the exact KB target work?

The compressor repeatedly re-encodes your image at different quality settings and keeps the highest quality result that still fits under your target. If even the lowest quality is too large, it scales the image down until it fits and tells you.

Is my photo uploaded anywhere?

No. Compression happens entirely in your browser using the canvas API, so the original file never leaves your device.

Which formats can I compress?

You can load JPG, PNG, WebP, and GIF images, and export as JPG, PNG, or WebP. JPG and WebP compress much further than PNG because PNG is lossless.

Will compressing reduce the image quality?

Some quality is traded for size, which is what makes the file smaller. Around 70-80% quality is usually indistinguishable from the original on screen, and the preview shows you the result before you download.

Why is my PNG barely getting smaller?

PNG is a lossless format, so quality settings do not apply to it. Switching the output format to JPG or WebP will usually cut the file size dramatically.

Is there a limit on file size or number of images?

There is no server-side limit because nothing is uploaded. Very large images (well over 50 megapixels) may be slow to encode on older phones, but there is no cap on how many images you compress.

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