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Image Tools3 formats supported

Free online image compressor

Use this free online image compressor to reduce image file size in your browser. Compress JPG, PNG, and WebP images for websites, email, forms, and faster loading pages without uploading your files.

  • Quality-based compression with preview
  • Lossy and lossless compression options
  • Real-time file size comparison

Supported formats

JPGPNGWebP

Adjust compression settings

Balance file size, quality, and output format before you start.

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Drag & drop Image Compressor

or click to browse

Supported: JPG, PNG, WebP, AVIF (max 50MB)

How It Works

A simple three-step flow from upload to download.

  1. 1

    Upload your image to compress.

  2. 2

    Adjust quality, output format, and metadata handling to balance size, compatibility, and privacy.

  3. 3

    Compress and download the optimized image.

Features

Key capabilities surfaced as quick-scan cards.

  • Quality-based compression with preview

  • Lossy and lossless compression options

  • Real-time file size comparison

  • Choose privacy-first stripping or slower metadata-preserve export

Related Tools

Nearby workflows people often use before or after this image tool.

Image Converter

JPG · PNG · WebP

Convert images between JPG, PNG, WebP, GIF, BMP, TIFF, and AVIF formats.

Open tool

Image Resizer

JPG · PNG · WebP

Resize images to exact dimensions or scale by percentage with aspect ratio lock.

Open tool

Batch Image Compressor

JPG · PNG · WebP

Compress multiple images at once with consistent quality settings.

Open tool

Image Crop

JPG · PNG · WebP

Crop images with a draggable crop box. Supports free crop and common aspect ratios.

Open tool

How to compress images online

  1. 1

    Upload your image

    Choose an image from your device or drag it into the compressor. Common formats like JPG, PNG, and WebP are supported.

  2. 2

    Choose quality and output settings

    Pick a compression preset or adjust quality yourself. This helps you reduce image size based on whether you need a lighter website asset, a smaller email attachment, or a cleaner upload for forms and listings.

  3. 3

    Compare and download

    Run the compression, compare the original and compressed image, then download the smaller file when you are happy with the result.

Understanding the settings

If you want the safest starting point, use a balanced quality setting and keep an eye on whether the image is a photo, a screenshot, or a graphic. JPG usually works well for photos, while PNG is better for graphics or images that need transparency. WebP is often the best format for website delivery because it can keep similar visual quality at a smaller size. Compression reduces stored image data, but it does not fix oversized dimensions, so resizing may still be the better move for very large images.

Best settings for common goals

General web use

Try quality around 75 to 85 and switch to WebP if the destination supports it.

That range often gives strong visual results while cutting file size enough to improve page speed meaningfully.

Maximum reduction

Resize to the actual display dimensions before compressing, then lower quality carefully.

Wrong dimensions waste more bytes than many people realize, so size reduction usually starts with resolution, not just format quality.

Format comparison

FormatBest forFile sizeQuality
JPG to JPGPhoto size reductionSmallerBalanced lossy output
JPG to WebPWebsite optimizationSmallerEfficient modern format
PNG to WebPWeb graphics with better compressionSmallerGood visual efficiency
PNG to PNGLossless cleanupSlightly smallerLossless

Practical guidance

The best image optimization order for most websites

Many large images stay large because the dimensions are bigger than the layout needs. Compression helps, but right-sized dimensions and the right format usually matter just as much.

  • Resize to the real display size before chasing lower quality settings.
  • Use WebP when browser support in the destination workflow is already acceptable.
  • Preserve metadata only when you truly need it, because stripping it is better for privacy and sometimes for size.

Compatibility, privacy, and limitations

Best format for broad support

JPEG is still the simplest fallback when you need a compressed image that will open almost anywhere. WebP is often smaller and better for websites, but JPEG remains the safest universal handoff.

Privacy explanation

Image compression is commonly used on screenshots, scanned forms, and personal photos. Local processing helps keep those originals private while you optimize them for upload or storage.

Things to keep in mind

  • Compression can soften edges, fine text, and very detailed textures if the quality level is pushed too low.
  • Image compression does not fix oversized pixel dimensions on its own, so very large source images may still need resizing for the best web result.

Frequently asked questions