I’ve been building a crypto market visualization and simulation tool because I kept running into the same problem:
TradingView is great for charts, but it’s hard to answer simple “what-if” questions like would rotating into another coin actually have helped or did trimming and buying back improve outcomes, or just feel good in hindsight.
So I started building tools that simulate these scenarios directly on historical data. For example:
- flipping from coin A into coin B and back again over a chosen period
- selling part of a position and buying back later after a drawdown
I’m still early and adding ideas as I go, but it’s already helped me questions I had.
I’ve been building a crypto market & portfolio visualization site in my spare time and wanted to share it here to get honest feedback.
The focus is on visual explanations and “what-if” scenarios rather than price charts only. For example:
• indexed performance comparisons (e.g. BTC vs ETH over arbitrary ranges)
• market cap & dominance breakdowns
• what if you held or missed the best trading days
• portfolio tracking with cost basis
• simple strategy simulators (HODL vs DCA, sell & buy back, coin flip)
The site is free right now. I’m mainly trying to understand: - which parts are genuinely useful vs noise
- what feels confusing or unnecessary
- what you’d personally want next (or would never use)
Link, one viz: https://blockviz.xyz/price/daily-returns and one simulation: https://blockviz.xyz/simulation/coin-flip
Happy to answer questions about implementation, data sources, or design decisions. Critical feedback very welcome.