Click to choose an image, or drag & drop it here
Supports JPG, PNG and WebPWhat is the Image Compressor Tool?
The Image Compressor reduces the file size of your JPG, PNG, or WebP images while keeping them looking sharp — perfect for speeding up websites, saving storage space, or meeting upload size limits. The entire process runs inside your browser using the device's own image-processing engine, so your photos are never uploaded to any server.
How Does This Tool Work?
Upload an image
Click the drop zone or drag and drop a JPG, PNG, or WebP file straight into it.
Set your quality & format
Lower the quality slider for smaller files, and optionally set a maximum width to resize larger images.
Click Compress Image
The image is redrawn onto an in-browser canvas and re-encoded at your chosen quality and format.
Compare & download
See the original and compressed file sizes side by side, along with the percentage saved, then download the result.
Behind the scenes, this tool uses your browser's built-in Canvas API to re-encode the image. JPEG and WebP support adjustable quality, which controls how much detail is discarded during compression — lower quality means a smaller file but slightly more visible compression artifacts. PNG is a lossless format, so for PNG files the biggest size reduction comes from resizing the image with the "Max width" option rather than the quality slider.
Who Should Use This Tool?
- Website owners and bloggers wanting faster-loading pages
- Anyone needing to meet an upload size limit (email, forms, portfolios)
- Photographers and content creators saving on storage space
- Online sellers optimizing product photos for marketplaces
Why Use ToolNova's Image Compressor?
- Adjustable quality — fine-tune the size-vs-quality balance yourself
- Format conversion — save as JPEG, WebP, or PNG regardless of the original format
- Privacy-friendly — your images are processed on your device and never uploaded
- 100% free — no sign-up, no watermarks, no file limits