
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

Organize your personal and business notes, tasks, bills, events and projects in one hub.
@MasterRubin007 · X
Check out what I just built with Lovable!

Calculate your Mayan calendar date, Dreamspell kin, and 13 Moon position.
@huangzekai003 · X
Codex helped me turn an idea into a real product as a solo developer. I used it to research, design, test, and launch a Mayan calendar website with accurate calculations and AI reports. Built with Codex. Shipped by one person. #Codex

Plan vacation days around public holidays to create longer breaks.
u/NeedleWorker77 · Reddit
I built a vacation optimizer then found out tools like this already exist - I shipped anyway I created free tool longvacation.eu , first as something to try out new Copilot abilities. Later found out there are projects like holiday-optimizer.com that are solving similar issue, so I tried to differentiate. Longvacation supports adding your partner calendar (just one for now, but I plan to add multiple in the future) Longvacation contains multiple sources of holidays data - so countrie

Study companion with test simulators, flashcards, and study schedules in Arabic and English.
@TALALJohn189315 · X
Check out what I just built with Lovable!

Weekly todo planner that works like a paper notebook, rolling tasks forward or dropping them each Sunday.
@faruque · X
TodoWeek: Works like a paper notebook, one week per spread, and every Sunday you decide what todos slide over to next week, and which ones get dropped. Mostly vibe coded with Claude Fable + Laravel 13 Vue starter kit.

Track your work shifts and estimate your pay before payday.
@reelblkbeard · X
I built Check My Shift for hourly workers to track shifts and estimate pay before payday. I’m looking for a few people to test it for a week and share honest feedback. Free beta:

MyCashBook is a free offline-first cash book app to track income and expenses, manage multiple cashbooks, and export reports — secure, fast, and private.
@imasaddogar · X
Hey everyone! I am selling this app. I also have many other great products available for sale. If you are interested, please send me a direct message (DM) for details!"

Organize daily Islamic remembrances across prayer times and day periods.
@madhawi1230 · X
Check out what I just built with Lovable!

Organize lesson plans with day, week, and month views; auto-reschedule when lessons conflict.
sunpy · V2EX
快开学了,专门给老师们做了个在线排课工具 最近做了个小工具-Teacher Planner ,可以帮老师提高排课效率,节省时间. 目前支持: * 自动排课,保存前先标出时间冲突 * 某节课被占,点一下顺延,后面受影响的课自动跟着挪 * 日 / 周 / 月视图共用一份数据,能直接打印 * 课程标准可以挂到具体课时上,方便查漏 * 中英双语 技术栈是 Next.js + Drizzle ORM + PostgreSQL + Better Auth 地址: https://teacherplanner.ai 免费版能建一份完整计划,欢迎试用、欢迎拍砖~

Track expenses, income, accounts, and budgets with recurring rules.
@umarbashir · X
I just shipped my first ever SaaS product. It's a small personal fiance tracker especially to manage expense , incomes, loans, subscriptions, and set budgets for your expenses. You can find it here:

Sends WhatsApp appointment reminders from calendar entries for private practices.
@AgnisKulak15614 · X