free & commercial online courses
All of your MX record, DNS, blacklist and SMTP diagnostics in one integrated tool. Input a domain name or IP Address or Host Name. Links in the results will guide you to other relevant tools and information. And you'll have a chronological history of your results.
DMARC, SPF, DKIM, BIMI checker.
Instantly test your domain to verify your DMARC, SPF, DKIM, BIMI configurations
The Merox solution helps you implement DMARC and many other DNS security protocols and standards.
the most popular DMARC tools on the market, covering every aspect of DIY domain protection.
Online Courses and Video Courses.
Learn new creative and technical skills with 1,240+ video-based courses and short courses to help you develop. From code and web design courses to photography and design & illustration courses, it’s all here. What would you like to learn?
Design Patterns & Refactoring.
I'm SourceMaking. I will tell you a lot of stories about good software architecture and teach you how to create it with design patterns. I will guide you through anti-patterns, common pitfalls and mistakes that people make when they plan, create, and manage software projects. In the end, I will teach you how to smell a bad code and improve it with refactoring.
Create and Share Presentations for Free.
An editor that converts images to pixel art, add dither, set palettes, and more! Made entirely in p5js.
A collection of more than 500 loading animations
The community dedicated to learning hardware.
Hackster is a community dedicated to learning hardware, from beginner to pro.
Best ChatGPT Prompts & AI Prompts Community
Laravel, PHP and JS Error Tracking.
Track all your PHP and JavaScript errors in one place.
Discover New Music
Track your components
Luro is a no-code solution to track component usage, adoption, and success across your entire product.
A mini-game about pop ups, and the deviousness of websites and apps
EVIL CORP wants your data. It will use every trick in the book (and a few more, just for fun).
Cascading donations to github repositories.
Support open-source projects with donations in crypto, and they will automatically forward a part of your donation to other open-source projects that made them possible.
180K+ open source icons.
Download, Customize, Edit and Personalize.Over 180k+ open source icons.
Create animated GIFs from a screen recording. Capture your screen to a GIF in your browser.
Client-side only, no data is uploaded. Modern browser required.
The best streaming overlay editor.