This content originally appeared on DEV Community and was authored by İlyas Özkurt
I’ve been experimenting with side projects for years, usually to solve small personal problems. Offday.app started exactly like that: a tiny tool I needed for myself, but it gradually turned into something people from many countries began using. So I thought it might be worth sharing here.
The Problem I Wanted to Solve
Every year, I try to maximize my holidays by combining annual leave with public holidays. Doing this manually is tedious: checking calendars, calculating date ranges, and tryinga to see which combinations create the longest break.
The idea behind Offday.app is straightforward:
Select your country → the app analyzes that year’s public holidays → it suggests date ranges where a few leave days turn into surprisingly long holidays.
It’s simple, but it saves a lot of time and catches opportunities you probably wouldn’t notice.
Global Usage
I initially built it only for Turkey. After refining the holiday logic, I made it work for every country. Since then, users from more than 50 countries have generated hundreds of holiday plans, even though I barely promoted it.
Tech Stack
Since this is dev.to, here’s what’s under the hood:
Frontend: Vue 3, Vite, Tailwind
Backend: Laravel
Infrastructure: AWS (CloudFront, S3, EC2)
Logic: holiday parsing, date-range scoring, caching, multi-locale output
The date engine doesn’t brute-force all combinations. Instead, it focuses on identifying “peak opportunity windows” around existing public holidays.
Why I’m Sharing It
I enjoy seeing other developers’ weekend projects here, so I wanted to contribute mine. Offday.app is simple, but it genuinely solves a small, real problem. If it helps someone squeeze a few extra days into their next holiday, that’s more than enough motivation for me.
You can try it here:
https://offday.app
I’m currently working on improvements such as:
plan sharing without accounts
exportable holiday cards
more detailed country-specific rules
better UX for country selection and date review
If you have suggestions or feedback, I’d be happy to hear them.
This content originally appeared on DEV Community and was authored by İlyas Özkurt
İlyas Özkurt | Sciencx (2025-11-23T22:05:11+00:00) I Built Offday.app — A Small Tool That Helps You Plan Longer Holidays with Fewer Leave Days. Retrieved from https://www.scien.cx/2025/11/23/i-built-offday-app-a-small-tool-that-helps-you-plan-longer-holidays-with-fewer-leave-days/
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