Image Compressor Guide
Compress JPEG, PNG, and WebP images locally with custom quality settings to reduce file size without server uploads.
Overview
Compress JPEG, PNG, and WebP images locally in your browser to drastically reduce file sizes for faster page loads and Core Web Vitals optimization with 100% data privacy.
When to Use Image Compressor
Use Image Compressor to speed up webpage load times, pass Core Web Vitals audits, or meet strict upload limits without sending private photos to remote servers.
Inputs, Formats & Specifications
- Accepted Inputs
- JPEG, PNG, WebP image files
- Output Formats
- Compressed JPEG or WebP image file with size reduction statistics
- Supported Standards
- Inputs: .jpg, .jpeg, .png, .webp; Outputs: .jpg, .webp
- Browser Limits & Scope
- PNG transparency is converted to white background when compressed to JPEG format; choose WebP output to preserve alpha channel transparency.
How to use Image Compressor
- Drag and drop your JPEG, PNG, or WebP image into the compressor dropzone.
- Adjust the quality slider (e.g. 70%–85% for the ideal balance between byte savings and visual quality).
- Inspect the real-time before-and-after file size readout and percentage savings.
- Click Download to save the compressed image file to your device.
Real-World Examples
Frequently Asked Questions
Does Image Compressor upload my photos to any server?
No! All compression takes place locally inside your browser's graphics engine. Your files never touch any external server.
What is the best quality setting for web images?
A quality setting of 75% to 80% typically eliminates 60%–80% of file weight with virtually no visible difference to the human eye on digital displays.
Can I compress PNG images with transparent backgrounds?
Yes. When compressing transparent PNGs, export as WebP to maintain crisp transparency while benefiting from superior compression ratios.
Privacy & Data Security
This image compressor runs in the browser, so your input stays on your device during normal use.