Pattern Monster's answer:
Based on our record, Pattern Monster seems to be a lot more popular than RegexBuddy. While we know about 11 links to Pattern Monster, we've tracked only 1 mention of RegexBuddy. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
At first glance this looks like software that’s a bit dated and nothing special, but try to use it just once and tell me if you don’t agree it’s freaking awesome when do you want to create an expression or get a feel for exactly how it’s working. I have no affiliation with these guys, I’ve just been impressed over the years https://regexbuddy.com. - Source: Hacker News / over 3 years ago
Pattern Monster: A simple online pattern generator to create repeatable SVG patterns. Perfect for website backgrounds, apparel, branding, packaging design and more. - Source: dev.to / about 1 year ago
SVG Patterns (if it counts as illustration:) https://pattern.monster/. Source: about 2 years ago
For the back of the card I'll use and SVG pattern, feel free to use the one you like the most from Pattern Monster. Also center the background image with background-position, and make it cover the full card by adding background-size: cover;. - Source: dev.to / over 2 years ago
I'd like to put together a POC to show some possible solutions. I know there are some tools out there such as https://pattern.monster/ and https://haikei.app/ which can generate images, but ideally this would be a library or at least an API I can hook into, so admins can just create templates in our admin application without having to go to an external site and manually knock a thumbnail up. Although not required,... Source: over 2 years ago
Bonus points for adding a custom background - pattern.monster is a must-use, in my personal, humble opinion. Source: almost 3 years ago
RegExr - RegExr.com is an online tool to learn, build, and test Regular Expressions.
Patterninja - Create patterns online
regular expressions 101 - Extensive regex tester and debugger with highlighting for PHP, PCRE, Python and JavaScript.
PatternPad - Create beautiful geometric patterns
Expresso - The award-winning Expresso editor is equally suitable as a teaching tool for the beginning user of regular expressions or as a full-featured development environment for the experienced programmer with an extensive knowledge of regular expressions.
Doodad.dev's Pattern Generator - A free tool for creating unique, royalty-free, repeatable patterns.