Image CompressionResize, compress, preview, and download
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AppHelp

Compress images locally with preview and download

Choose an image, resize it, set output format and quality, then download the compressed file.

Preview
Choose an image to preview it.
Original
 
Output
 
Savings
 

Common tasks

  • image compression online
  • resize JPEG PNG WebP
  • compress images without upload
  • image quality and file size

Quick answer

This image compressor resizes and re-encodes JPEG, PNG, and WebP files inside your browser. You can choose output dimensions, quality, and format, preview the result, compare original and output size, and download the compressed image without uploading it.

How to use

  1. 1. Choose an imageSelect a JPEG, PNG, or WebP file from your device. The preview and compression run locally in the browser.
  2. 2. Set size, format, and qualityResize the image, keep aspect ratio when needed, and choose WebP, JPEG, or PNG depending on your target use.
  3. 3. Preview and downloadCompare original size, output size, and savings before downloading the compressed image.

Examples

Large photo to WebP

Input
4000 × 3000 JPEG, quality 82
Output
1600 x 1200 WebP, smaller file for web publishing

File size depends on image content; compare the actual output.

Screenshot resize

Input
PNG screenshot at full desktop width
Output
1200 px wide PNG or WebP for documentation

Social preview image

Input
2400 × 1260 source image, aspect ratio locked
Output
Compressed 1200 x 630 image ready for Open Graph previews

Common use cases

  • Reduce image size before adding assets to a website, blog post, or documentation page
  • Create smaller screenshots for issue reports and release notes
  • Convert photos to WebP for faster page loading
  • Downscale large source images before sharing while keeping processing local

Edge cases

  • Choose PNG to retain transparency in this tool; JPEG and WebP are often useful for smaller photo output. PNG encoding ignores the quality slider.
  • High quality may save little space or produce a larger file. The savings display stops at 0%; compare both file sizes as well.
  • Metadata such as EXIF may be removed when the image is redrawn through browser canvas; animation is not preserved.
  • Extremely large images depend on browser memory and canvas limits

Features

  • Compress JPEG, PNG, and WebP images in the browser
  • Adjustable quality and output dimensions
  • Live preview with original vs. output size and savings
  • Files never leave your device

Related tools

Image ResizeResize images when compression format controls are not needed.Image ConverterConvert between common image formats.EXIF RemoverStrip photo metadata before publishing or sharing.Social Media Image ResizerResize an image for a fixed social-media preset.Image compression and format guideCompare WebP, JPEG and PNG for your use case.

Frequently asked questions

What image formats are supported?
JPEG, PNG, and WebP. WebP is also available as an output format for typically smaller files at the same quality.
Are my photos uploaded?
No. Compression uses the Canvas API in your browser; the image bytes never leave your device.
Can I resize while compressing?
Yes. Set width and height (with aspect-ratio lock) before compressing to downscale and re-encode in one step.