TinyPNG shrinks PNG and JPEG images without losing quality. It employs smart lossy compression to speed up loading times on websites and blogs.
Pros:
Simple and easy to use
Reduces image size without sacrificing quality
Batch processing available with paid plan
Cons:
Only supports PNG and JPEG formats
File size limit of 5 MB for free plan
Batch processing only available with paid plan
My overall rating:
Kraken.io compresses images with advanced algorithms and works with JPEG, PNG, GIF, and SVG formats.
Pros:
Supports a wide range of image formats
Batch processing available with paid plan
Advanced optimization options for power users
Cons:
Free plan has a file size limit of 1 MB
Batch processing only available with paid plan
More complex user interface than some other options
My overall rating:
Compressor.io is an easy online optimizer for JPEG, PNG, GIF, and SVG. It shrinks images using both lossy and lossless techniques.
Pros:
Supports a wide range of image formats
Batch processing available with paid plan
Simple and easy to use
Cons:
Free plan has a file size limit of 10 MB
Batch processing only available with paid plan
Not as powerful as some other options
My overall rating: