DayLogic

Master Your Day with Logic

Welcome to DayLogic. A suite of free, modern tools for professionals: calculate dates, decode JSON, map time zones, track finances, and optimize your health.

Date Calculator

Calculate the exact number of days between dates, find future/past dates, and compute business days excluding weekends.

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Time Zone Converter

Instantly convert precise dates and times across the globe without worrying about Daylight Saving Time or complex offsets.

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Text & Content Helper

Count words and characters, format text cases, estimate reading time, and generate dummy Lorem Ipsum text for your projects.

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Everyday Finance

A suite of calculators to figure out percentages, split dining bills, calculate sales tax, and adjust for inflation.

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Design Math Tools

Geometric calculators to help you scale aspect ratios perfectly and build flawlessly proportioned design layouts.

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Data & Dev Tools

Format messy JSON into readable trees, safely encode URLs, and convert Unix timestamps instantly.

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Fitness & Health

Calculate your daily calories, find your ideal body weight, and split your macros perfectly.

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A Universal Toolkit for Everyday Friction

DayLogic began as a simple date calculator, but it has evolved into a comprehensive suite of micro-tools designed to eliminate the tiny, frustrating bottlenecks in your daily life. Whether you are a developer debugging a server issue, a freelancer sending an invoice, or someone just trying to coordinate a family call across three continents, our platform delivers instant, mathematically precise answers without the hassle.

Empowering Professionals

Stop juggling multiple bookmarks. Web developers can decode JSON or JWTs in our Smart Sandbox. Designers can instantly scale aspect ratios. Project managers can generate text-based Gantt timelines in seconds to paste straight into Slack.

Financial & Health Clarity

Take the guesswork out of your personal life. Use our finance suite to accurately calculate VAT or track inflation over time. Switch over to our health suite to dial in your daily macros or map out a visual intermittent fasting schedule.

Zero Friction, Absolute Precision

We believe great utilities should respect your time. That's why every tool on DayLogic is blazingly fast, runs entirely in your browser, and requires zero account signups. You just get the exact answer you need, when you need it.