I built "SVG Ready" because I often needed a quick way to convert SVG icons into CSS data URIs while working on WordPress and front-end projects. Most of the time, I just wanted to paste the code, copy the output, and move on. So I made something that does exactly that.
I have observed lot of people and the only people who I find to be happy or content are the ones with least ambition or those who create something (no matter the size of their creation). So my suggestion to you is focus your energy into creating something.
I had more than 1 ideas for which I registered domain, and then planned about it in spare time.
What I learned is plans don't always work. if you have an idea, its better to decide if its worth it for you to spend time on it. If the answer is yes, then instead of too much planning, its better to immediately get started from day 1. Even spending 30 minutes each day on building on that idea is lot better than just planning it.
Both are good enough. Give both a try. No matter what people argue once you test both at least for a day, you would be able to find the right one for you.