Image Compressor — Free Online Tool, 100% Local Processing
100% local processing — your images never leave your browser.
Upload Image
Drag and drop an image here, or click to select
Supports JPG, PNG and WebP
Result
Upload an image to see the before/after size comparison and preview.
Features
100% Local
Your images never leave your browser. No server, no uploads, no size limits.
Live Preview
Drag the quality slider to instantly see the resulting size and quality.
Multiple Formats
JPG, PNG and WebP supported. Keep the original or convert — WebP is usually smaller.
Why compress images?
High-resolution photos are often several megabytes each, which slows down page loads, eats up storage and frequently exceeds the upload limits of forums, forms and email. Compressing an image dramatically reduces its file size while keeping acceptable quality, making sharing and uploading far smoother.
100% local processing, private by design
Unlike many online compressors that upload your images to a server, this tool runs entirely in your browser using the Canvas API. Your images are never uploaded, stored or sent to any third party — ideal for IDs, contracts and any photo containing personal information.
Supported formats and tips
JPG, PNG and WebP are supported. For photographs, JPG or WebP work best; keep PNG when you need transparency. In most cases a quality setting between 70–85% is visually indistinguishable from the original while saving a significant amount of space.
All Tools
10+ privacy-first image tools — all run 100% in your browser
Watermark
Add text or logo watermarks to IDs & docs
Batch Watermark
Watermark many images at once
PDF Watermark
Stamp watermarks onto PDF files
Mosaic & Blur
Mosaic, blur or box out sensitive parts
EXIF Cleaner
Strip GPS location & camera metadata
Convert
Convert between JPG, PNG & WebP
Resize
Resize image width & height
AI Remove BG
Remove image backgrounds with AI
Social Crop
Crop to sizes for every social platform