
takehome.tax — Canada & US Tax Calculator
Estimate take-home pay for Canadian provinces and U.S. states with simplified tax calculations.
@takehomeTax · X
US and Canada income tax calculator that takes RSU into account
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Estimate take-home pay for Canadian provinces and U.S. states with simplified tax calculations.
@takehomeTax · X
US and Canada income tax calculator that takes RSU into account

See where your AI spending drives value and the highest-ROI improvement areas.
@pgrant67 · X
Uber gave 5,000 engineers Claude Code. 4 months later, their entire 2026 AI budget was gone. This is what happens when adoption outruns proof. We built the free AI ROI Index to show where your AI spend is actually driving value:

A calculator and data manager for LORT game statistics and analysis.
LORT Calculator — Stream 游戏 LORT 工具网站

Estimate the cost of your AI prompts before running them.
quote_first · Product Hunt
QuoteFirst AI Know what every AI prompt will cost before you run it

Echo – Fable-level results at 1/3 the cost using open-weight models
adam_rida · HN
Echo – Fable-level results at 1/3 the cost using open-weight models

Calculate mortgages, loans, taxes, savings, and budgets online.
@darsh0891 · X
Meet CalcyFinance — the simple way to track your budgets, monitor spending, hand actually hit your savings goals without the headache. Stop guessing where your money goes. Try it out: 👍 #PersonalFinance #Budgeting #Fintech #buildinpublic

Use 100+ free online calculators for math, chemistry, physics, loans, health, and AI costs—no signup needed.
u/averageChilean · Reddit
Built a free tool site to help my brother study — now has 100+ tools, would love feedback My brother's in high school and needed something more visual to study chemistry, physics, and math, so I used Claude to build him a simple site with interactive calculators and visualizers. I'm not a programmer or from a tech background, so without AI this wouldn't have happened, at least not this fast. It ended up helping him a lot more than I expected, so I kept expanding it, added a bunch of other

Analyze German property listings to find hidden costs, assess renovations, and optimize government funding programs.
martinvoelker · HN
I built an AI that reads German real estate listings for buyers

Calculate how much you'll spend when your app stack exceeds free tier limits.
@K_dev001 · X
Vibe coding makes launching an app almost free. Running it is another story. I built to calculate your full AI + app stack costs and show which free tier breaks first. Sourced pricing. No signup. No guessing. ->

Track your total compensation including salary, equity, bonuses, and tax impact.
u/broli720 · Reddit
I built a total compensation tracker because spreadsheets kept lying to me about my RSU income Currently in big tech and it was always a toss up figuring out what my comp was whenever the market made big moves. I'd forget about vesting cliffs, miscalculate the tax hit on RSUs, or completely ignore how a sign-on bonus amortizes over 4 years when comparing offers. So I built CompPilot , a compensation copilot that tracks salary, equity/RSUs, bonuses, and taxes in one place. What it does:

Stop juggling UptimeRobot, Healthchecks and Datadog. Zuzia is the single panel for uptime, SSL, scheduled-task execution and remote ops on your client servers — from $9/mo or $129
@GrzegorzBukat · X
I've added a few new features to but they're not yet available on the landing page. If you have a paid account, you can enable autopilot for your services in your dashboard. Autopilot automatically ensures everything works.

Calculate embroidery costs and suggested retail prices based on stitch count, quantity, labor and materials.