How to Compress Images Without Uploading Them
Compress JPG, PNG, and WebP images directly in your browser without uploading them to any server.
Local Image Compression: How It Works
Image compression is a common task for web developers, photographers, and content creators. But popular tools like TinyPNG and Squoosh upload your images to their servers. Here's how to compress images locally.
Image compression is a common task for web developers, photographers, and content creators. But popular tools like TinyPNG and Squoosh upload your images to their servers. Here's how to compress images locally.
How Local Image Compression Works
Canvas API
Our image compressor draws your image onto an HTML5 canvas and exports it using canvas.toBlob() with adjustable quality settings.
Quality Control
Choose from High (95%), Standard (80%), or Compressed (60%) quality. Preview size reduction percentage for each image.
Batch Compression
Select multiple images and compress them all at once. Download individual files or all compressed images as a ZIP archive.
Format Support
Try It Now - No Upload, No Registration
Runs entirely in your browser — no upload, no account, no waiting.
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Comparison
Offline Image Compressor vs TinyPNG
Compress images without uploading them to TinyPNG's servers.
Privacy
Privacy Risks of Online Image Converters
What happens to your photos when you use online image tools.
Image Formats
WebP vs JPG: Which Format Is Better?
Compare WebP and JPG for file size, quality, and compatibility.