ZipPic: Free Image Compression Tool for Ultimate Compression Experience

Image compression is an essential task in numerous daily work scenarios, such as creating banners, product images and article illustrations for independent websites. Overly large image files will cause slow page loading and prolonged "white screen" time, which may result in users closing the page directly. According to industry standards, web images are recommended to be compressed to 100KB–1MB (depending on specific dimensions). For example, Taobao product images are usually compressed to under 500KB to ensure fast browsing and improve user retention.

TinyPng and Squoosh are the most well-known tools on the market. Below is a comparison of the compression performance of these three different image compression tools:

TinyPng

TinyPng supports the compression of formats including AVIF, WebP, PNG and JPEG. It allows uploading up to 20 images at a time, with a 5MB limit per image, and users can manually set the target format.

Official Website: https://tinypng.com/

Advantages

1. Simple and user-friendly interface design for easy operation
2. Fast compression speed with relatively high output quality
3. Supports one-click packaging and CDN storage
4. Compatible with APNG animated images

Disadvantages

1. File upload restrictions: maximum 20 images per session and 5MB per file
2. Cloud-based upload is required, leading to slow access speeds for users in China
3. No support for custom compression quality settings

Squoosh

Developed by Google Chrome Labs, Squoosh is an open-source online image compression tool that supports the compression of JPEG, WebP, PNG and other formats. Users can adjust parameters to reduce image file size while maintaining high visual quality.

Official Website: https://squoosh.app/

Advantages

1. Customizable parameters: users can adjust image dimensions, reduce color depth, select compression algorithms, etc., to find the optimal balance between image quality and file size through parameter optimization.
2. No registration or login required; simply open the webpage to upload and compress images, featuring simple operation and a clean interface.
3. No need to upload images to CDN, ensuring user privacy and data security.
4. No single file size limit.

Disadvantages

1. Only single-image processing is supported currently, resulting in low efficiency for users who need batch compression of a large number of images.
2. English-only interface, which may cause initial comprehension difficulties for non-English speakers.
3. Does not support the compression of animated images such as GIF and APNG.

ZipPic

Finally, we highlight ZipPic, a free online image compression tool that requires no login. It combines the strengths of TinyPng and Squoosh while addressing their inherent shortcomings.

Official Website: https://zippic.app/

Advantages

1. Supports conversion and compression of static image formats (JPEG, PNG, AVIF, WEBP) as well as animated image formats (GIF, Animated WebP, APNG).
2. Enables batch image processing and one-click packaged download.
3. Comes with a built-in image cropping function to resize images as needed.
4. Multilingual support for user-friendly international usage.

Conclusion

A great image compression tool is one that meets 90% of the common functional needs in daily scenarios. We welcome your valuable suggestions and discussions in the comment section.