About SimpleSwap
We build free, private, and accurate date and time calculation tools for everyone.
Our Mission
SimpleSwap was created to provide simple, accurate, and privacy-respecting tools for everyday calculations. We believe that knowing your exact age, tracking milestones, and understanding calendar maths shouldn't require downloading an app or sharing your personal data.
Every tool on SimpleSwap runs entirely in your browser. Your birth date, personal data, and calculations never leave your device. We built SimpleSwap for people who value both simplicity and privacy.
Our Values
Privacy by Design
All processing is local. Zero server-side data collection.
Accuracy
Leap years, varying month lengths, and timezone handling — all covered.
Free for All
No accounts, subscriptions, or premium tiers. Always free.
Instant Results
Calculations happen in milliseconds, right in your browser.
What We Offer
Our Age & Date Calculator provides:
- Exact age in years, months, and days
- Total days, weeks, and hours lived
- Day of the week you were born
- Western zodiac sign detection
- Next birthday countdown
- Estimated lifetime heartbeats
- Custom "as of" date for historical or future calculations
Product Roadmap
Q1 2025 — Age Calculator Launch
Core age calculation with exact age, days lived, zodiac sign, and birthday countdown.
Q3 2025 — Date Difference Tool
Calculate the exact duration between any two dates in days, weeks, months, or years.
Q1 2026 — Time Zone Converter
Convert times between any world time zones with daylight saving awareness.
Q2 2026 — Week Number Calculator
Find the ISO week number for any date, with calendar view.
Q4 2026 — Countdown Timer Builder
Create shareable countdown timers for events, deadlines, and milestones.
Our Team
SimpleSwap is built and maintained by a distributed team of developers who share a passion for clean tools, precise maths, and user privacy. We work remotely from around the globe.
Questions or ideas? Get in touch.