Local bitmap workflow

/image-convert/bitmap-compress

Bitmap Image Compressor

Upload a bitmap image, tune quality and max-dimension settings, and download a smaller output file without leaving the browser.

Image ConvertBitmap ConvertVector CompressVector Convert

How do I shrink bitmap image size without leaving the browser?

Upload a bitmap file, set the target format, quality, and max dimension, then download the compressed result created locally in the browser.

  • Use quality and max-dimension controls together when you need a smaller file without manually editing the image first.
  • Supported inputs include PNG, JPEG, WebP, BMP, GIF, and AVIF, so you can start from common raster assets.
  • The result panel shows output size and savings percentage before you download the new file.

How to compress a bitmap image

  1. 1.Select a bitmap file from your device.
  2. 2.Choose the output format, quality percentage, and max dimension.
  3. 3.Run compression, review the output size, and download the generated file.

Trust signals

  • Runs locally in your browser
  • Original file stays on your device until you choose a new download
  • Output size is shown before download
  • Supported bitmap formats are visible on the tool form
Maintained by: Konviny Tools team
Last updated: 2026-03-07

References

FAQ

Should I change format while compressing a bitmap?

Use the output format selector if you want the smaller file in WebP, JPEG, or PNG while still controlling compression settings in the same route.

What does max dimension do?

It caps the longest edge of the output image so you can reduce both resolution and file size in one step.

Can I see whether compression actually helped?

Yes. After processing, the tool shows the output size and a percentage that indicates whether the result is smaller or larger than the source file.