
StartupDeckAI — Best Free AI Startup Idea Validation Tool 2026
Validate startup ideas with AI scoring, competitor analysis, market sizing and financial projections.
@yashrsuthar · X
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61 projects

Validate startup ideas with AI scoring, competitor analysis, market sizing and financial projections.
@yashrsuthar · X

All-in-one platform for calculating EMIs, taxes, mutual funds, stock trading, rent vs buy, and retirement planning.
@sarkar68154 · X
Just launched FinoSphere Pro and the feedback on Product Hunt is 🔥 [ Free all-in-one finance calculator 👇 #buildinpublic #finance

Place predictions on future outcomes across politics, sports, and crypto on a BNB-native prediction market.
@JfwRk · X
预测市场最贵的,从来不是判断错。 而是当你发现异动时,聪明钱已经买完了。 所以,我做了一个双平台工具: 「信号罗盘」 Polymarket 500 个热门盘口 500 个热门盘口 两边各 50 个聪明钱地址 异动热度、收益曲线、每日评级和近期操作逻辑,全部放在同一个页面。 它不是喊单网站,也不承诺收益。 我们只想把分散的信息,变成更早、更清晰、可以验证的交易信号。 目前免费开放测试。 你最希望下一个加入什么功能:地址提醒、跨平台价差,还是聪明钱跟踪? #Polymarket #Predict #预测市场

Monitor global capital flows and market sentiment using real-time financial indicators.
@Evelyn_tree1 · X
I built a dashboard that just shows me where global money is flowing. Free public data, rebuilds itself twice a day. Every indicator answers exactly one question. Is money loose or tight? Flowing where? Buying what? Risk-on or risk-off? Crowded? If it doesn’t answer one of these, it doesn’t get a slot on the board. Reading got the same treatment: a hard cap of 45 min/day → 5 RSS feeds + 5 newsletters, each rate-limited (Damodaran: about one post a month). I’d rather miss a few things than let the feed become an anxiety machine. I don’t write code. Claude Code wrote every script — fetch, build, publish, twice a day on cron. I set the rules and keep the judgment; the machine does the running. Personal research notes, not investment advice.

AI-powered price forecasts for stocks, crypto, and commodities with calibrated probabilities and backtested accuracy.
@iqbal_saqi2522 · X
- An AI-based Prediction System

Track personal finances with AI-powered analytics for budgeting and goal management.
Elias569 · GitHub
fintech-dashboard fintech dashboard for personal finance management which track income and expenses, leverage AI-powered analytics, manage budgets and financial goals, enjoy a dark theme

AI agent that matches investment portfolios to your financial preferences.
@sanjeevpai · X
I have been trying out a new idea at - A 100% vibe coded site that actually adds value. It is alpha v0.003 so far but beginning to take shape nicely. The AI agent completely redid the look and feel and behavior in one day. At this rate of growth, agents are going to put a lot of software vendors out of business.

Monitor your portfolio holdings, analyze performance, and get AI-powered personalized financial planning with predictive insights.
KORAYTEACHER · GitHub
fintech-advisor ai fintech financial advisor for your portfolio

Compare retirement projections in Bitcoin versus Mexican AFORE savings accounts.
@edgadafi · X

Analyze real-time financial data and get automated investment insights powered by AI.
@tonylexfi · X

Access 470+ financial calculators for mortgages, taxes, retirement, and more with instant results in 40+ currencies.
@AfridiMunir · X

Estimate long-term returns for index fund investments in multiple currencies.
@wjf110 · X
现在到底有多少人定投纳斯达克100?定投后收益怎么样? 我用 @dappOS_com 的 xBubble Coding 做了一个更直观的网站 收益预估计算: 如果你开始买纳斯达克指数基金会发现总推这方面的内容,搞得好像全世界很多人都在买这个东西。 觉得这个就是特别的主流,其实还是一个比较偏门的投资。 在 xBubble 找到了权威的数据,大概是400W左右 用人口除一下不难发现,大概就是万分之2.8,10000个人里面只有三个人在定投。 我又不是程序员,就随便描述了一下想要啥,十分钟就搞出一个能用的网站:支持切换不同指数、人民币/USDT/USDC 随便选、收集定投动态跳动的人数、年限对比表、漂亮图表、详细计算逻辑和风险提醒。 以前搞这些得配服务器、买域名、调 API、部署……头都大了。 现在 xBubble Coding 全帮你包了,真就是普通人也能 1 小时内把想法变成真产品 牛就牛在,它不是扔给你一堆代码让你自己折腾,而是端到端全搞定:界面、逻辑、数据、部署一条龙。 我这个计算器能实时算复利、自动刷新、还有表格和图表,看着就专业。 以后想加会员收费、接稳定币支付,也能继续聊着天就改。 不像别的 AI 工具只帮程序员写代码,它专门为咱们这些不会技术的个人创业者(OPC)和小团队设计的,直接卖的是能赚钱的完整生意 现在大厂的标准化产品只吃掉 20% 的市场,剩下 80% 都是各种奇奇怪怪的垂直、小众、短平快需求 xBubble Coding 帮你把技术门槛、雇人成本、试错成本全抹平了,让每一个脑子里的小想法都能快速变成能赚钱的生意。 别人还在用 AI 卷着写代码的时候,咱们已经用 xBubble Coding 把想法变成真金白银了。 用抗审查保护自己,用 SOP 降低风险,用对话式 Coding 快速增长。 这可能就是 AI 时代,普通人、小团队拿超额利润的最强基础设施