
Free Financial Calculators 2026 - Mortgage, Tax, Retirement, Debt
Calculate mortgages, taxes, retirement, and more using 470+ free financial calculators.
@AfridiMunir · X
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Calculate mortgages, taxes, retirement, and more using 470+ free financial calculators.
@AfridiMunir · X

Estimate monthly payments for mortgages, auto loans, and personal loans with free calculators—no signup required.
@itskdubs_ · X

Track brokerage splits, tax reserves, mileage, and take-home pay for real estate commissions.
u/dayngerous78 · Reddit
Sharing my side project - Real Estate Commission Planner Highly doubt anyone here would have use for this specific niche app but this is for sharing side projects so decided to share mine to other builders. The stack is pretty simple with tailwind, nextjs, supabase with google auth. My wife is a real estate agent and the tough part are keeping up with GCI vs net, taxes, expenses and even year over year stats. This handles it all. A lot of brokerages have software to use for th

Search African neighborhoods to see property yields, cap rates, and deal analysis metrics.
@JoelNkemjieme · X

Compare AI subscription prices across reseller channels to find the lowest rates.
bytedoger · GitHub
awesome-OpenPrice 一个开源的收录全网卡网渠道各种AI订阅价格的项目。打破信息茧房,一站式获取各个渠道的 Claude、GPT、gemini 、cursor产品的最新价格

Optimize electricity spending by connecting utilities, EVs, and solar to find ideal charging times.
@gleam_energy · X
Gleam — an energy management tool that helps people understand, optimize, and save on electricity. Utility data, EVs, solar, batteries, and weather combine to answer questions like "Why did my bill go up?" or "Would switching rate plans save money?"

Upload a video walkthrough of your home to get AI improvement recommendations for maximizing resale value.
u/engineeralex · Reddit
I built a free AI tool that watches a phone video of your house and tells you what to fix before you sell People prepping to sell either sink money into a full kitchen remodel that returns about half (NAR pegs it around 55% cost recovery) or skip the cheap fixes that actually pay. So I built HomeBrief . Film a 3-5 minute walkthrough on your phone, a vision model watches it, and you get a room by room fix list with cost ranges and estimated value added. Calls from real reports, least aggr

Manage rental properties, track tenants, rents, and maintenance logs in one dashboard.
@KatiyarSaiyam · X
just shipped my first full-stack app 🏠 properties, tenants, rent tracking & maintenance logs, all in one place. UI is still a work in progress — actively making it better. would love honest reviews & UI suggestions! 🔗 #buildinpublic #webdev #reactjs

Search 8 million vacation rentals and read reviews before booking to avoid bad experiences.
@4MikeJoe · X
CARFAX for Airbnbs!

Calculate whether your electrical panel can support an EV charger without upgrading.
@walls_jason1 · X

Calculate stamp duty and property transfer taxes for UK, India, Australia, Singapore & Canada.
@SinghwalPreet · X
🚀 Just launched I built it to make tax calculations simple, fast, and free—without signups or unnecessary clutter. Waiting for feedback! 🔗 #BuildInPublic #IndieHackers #WebDevelopment #SEO #SideProject #Tax #Finance #NextJS

Calculate SIP & lumpsum mutual fund returns with LTCG/STCG tax in seconds. Free forever. No ads. Covers equity, debt & hybrid funds. Built for Indian investors.
@RahulGupta8999 · X
Just shipped 🚀 Free SIP & lumpsum calculator for Indian investors with actual LTCG/STCG tax breakdown. No ads. No sign-up. Forever free. Would love your feedback! 🙏🇮🇳 #BuildInPublic #MutualFunds #SIP