Image Compressor Online — Reduce JPG & PNG Size Free
Reduce image file sizes securely in your browser using local canvas compression algorithms—no uploads required.
About this tool
Image Compressor reduces photo and graphic file sizes using your browser’s canvas API—your files never leave your device. Drag in a JPG, PNG, or WebP, pick a quality level, and download a smaller version ready for web pages, email attachments, or CMS uploads.
Unlike server-based compressors, this tool keeps screenshots, product photos, and client assets on your machine. That makes it a practical choice when you need quick size reduction without sending files to a third party.
Common use cases
- Shrink hero images and blog thumbnails before publishing
- Meet email attachment size limits without losing readability
- Batch-compress one image at a time during a site audit
- Compare quality settings before replacing production assets
How to use
- Select or drop your file in the tool panel above.
- Adjust any options if provided.
- Download or copy the output.
This page is available at /tools/image-compressor/.
Related keywords
- image compressor
- compress image
- reduce image size
- canvas compressor
- compress jpg
- compress png
Related tools
FAQ
How do I compress an image without uploading it?
Select your image, adjust the quality slider, preview the result, then download. All processing runs locally in your browser.
Which image formats are supported?
You can compress common web formats including JPG, PNG, and WebP depending on your browser.
Will compression reduce image quality?
Lower quality settings produce smaller files with more visible compression. Use the preview to find a balance before downloading.
Is there a file size limit?
Very large images are limited by your device memory. Most everyday photos compress in seconds.