Comparison of image optimizers

1. Unbelievable Image Optimizer vs. JPEGmini

♥  Price

JPEGmini is $59,

Unbelievable Image Optimizer is only $8.97 when crazy promotion.

♥  Compression ratio

JPEGmini is 4.3x,

Unbelievable Image Optimizer is 7x.

Details of the test.

♥  Feature:

JPEGmini: Only jpg and heic can be compressed.

Unbelievable Image Optimizer: can compress jpg, jpeg, png, gif, pcx, bmp and supports transparent png.

Unbelievable Image Optimizer can output jpeg2000, which can provide higher compression than jpg.

2. Compression ratio comparisons

 Image optimizer                          ORIGINAL size         optimized size       compression

Unbelievable Image Optimizer    624 KB                89 KB                   7.0x                                       624 KB              252 KB                   2.5x 

JPEGmini                                      624 KB              144 KB                   4.3x

TinyPNG,TinyJPG                         624 KB              149 KB                   4.2x

optimizer           size  compression

Unbelievable     89 KB          7.0x         252 KB          2.5x 

JPEGmini        144 KB          4.3x

TinyPNG         149 KB           4.2x 

3. Compression speed

     Because only Unbelievable Image Optimizer and JPEGmini are local batch compression, the others are online compression, Unbelievable Image Optimizer and JPEGmini are very fast, and the other speeds are obviously slow.  

Unbelievable Image Optimizer is the only batch processing,  high-compression, high-speed, reliable, cheap software.

disadvantages of Most image optimizers


Many times uploading and downloading images is very troublesome.

Very Slow

Both Uploading and Downloading are slow.

No Image privacy

Images Are Sent To Website‘s Server, You Know It. Not Real Guarantee.

uncommon advantages of unbelievable image optimizer


Compress images in a directory at a time. No uploading or downloading images.

Very Fast

Compress locally, and native software is much faster than website.

Safeguard privacy

Images are compressed on your computer and are not sent to website.


New 3.0 released, support png, Gif, Pcx, Bmp and Jpeg2000 

Crazy New Year promotion: double discount 25% + 69%, if you find the discount code. 100 discount product.


One-time pay, much cheaper than other Products or SAAS.

Guaranteed payment security: 

The payment is made on the PayPal website.


Credit / Debit Card
You can buy it on your phone.
Totally worth every penny!
Anthony Ranville
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I like it. It saves upload time, money for storing images and online galleries. SSD, disk, and cloud space all cost a lot of money.
Real useful
Robert Lively
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I saved 2M bytes (10 million pixels) for my 1 photo, saved 2G for 700 photos.
Great tool!
Ben Christensen
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It used to take at least 50 minutes or more to upload. Now it can upload images to my gallery in just a few minutes (usually about 300 images).
Laura McCann
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Simple, easy to use, fast, and still maintain amazing image quality. I like it.
Vic Pope
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I feel unbelievable about the extremely high quality that the software achieves through such extreme compression, and it does.