Generation of seamless textures

Question

Algorithms

Suggest an algorithm / web service / program for generating procedural seamless textures or creating those from textures with seams.

Answer 1

You may like the link habrahabr.ru/blogs/css/117160/

Answer 2

So hands in Photoshop for five minutes. Take a piece of texture, make it a filter - offset by half the width and height, get the seams in the center. Arm yourself with a stamp and paint over the seams (be careful with the edges). Once again offset, check how it turned out. Define a pattern and use it.

Answer 3

There was such a service:
www.repper.com/vimeo.com/4196974
I
saw it 3 years ago. Barely found.
It might rise.