Online Image Cropping Security
Other web-basd cropping sites require you to upload your image to their server before the cropping process beings (this is how the old Croply functioned). Once the image is on the remote server, it is then displayed back to you. This is why it can take several minutes to upload your image, which further delays the cropping process. Additionally, the server then processes the image before it is displayed back to you, which causes artifacting and lower quality images.
Croply avoids these pitfalls by completing the entire process "client-side". What this means is that once you "upload" an image to Croply, you are actually converting an image file on your hard drive into a string of characters, which is then quickly converted into a viewable image back onto your computer screen. The image never leaves your computer, and no data is sent to the Croply servers.
The crop selection processing is done by converting the HTML5 canvas element to an image, client-side as well. You will notice on some browsers after you hit "Generate JPEG" or "Generate PNG", there is a very long string of characters in the address bar. That is the character representation of the image that your browser takes and converts back into a viewable image.
Simply put, your data never leaves your computer, which is what keeps Croply so secure.Back to Cropping