Today Lab

All useful tools in one place.
Boost your productivity with fast and intuitive Today Lab.

Finance & Career

2026 Salary Calculator: Accurate take-home pay calculator with latest tax laws. Calculate your real net income.
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Global Salary Comparison: Korea vs US vs Japan. Compare your real salary value across different countries.
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Minimum Wage History: Historical chart and comparison of minimum wages in major countries (2015-2026).
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Loan Payment Calculator: Supports Equal P&I, Incremental, and more. Compare monthly payments and total interest instantly.
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Real-time Currency Converter: Check live exchange rates (USD, JPY) and calculate amounts with preferential rates (spread).
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US Salary Calculator: Calculate US net income considering Federal and State taxes by state.
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Japan Salary Calculator: Check net pay in Japan, including Residence Tax and Social Insurance deductions.
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JSON Parser & Converter: Format complex JSON, validate errors, and generate DTO code for TypeScript/Java.
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SQL Formatter: Format and beautify complex SQL queries. Supports MySQL, Postgres, and various dialects.
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Text & Code Diff Checker: Compare two texts or code snippets side-by-side to highlight differences instantly.
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Crontab Generator: Generate and understand Cron expressions for server scheduling with ease.
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JWT Debugger: Decode JWT headers/payloads and check expiry dates without server-side processing.
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Regex Tester: Test regular expressions in real-time with group capturing and highlighting.
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Base64 Encoder/Decoder: Real-time bidirectional conversion between Text and Base64. URL-Safe supported.
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Image Converter: Compress & Convert (JPG/WebP/PNG). Secure local processing without server uploads.
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Video Converter: Compress & Convert videos (MP4/WebM) via WebAssembly directly in your browser.
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My IP & Location: Check your public IP address, ISP info, and approximate location on the map instantly.
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QR Code Generator: Create free custom QR codes for URLs, Wi-Fi, vCards. Add logos and colors.
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Age & D-Day Calculator: Calculate International Age, D-Day, and Service Dates easily.
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Blog: In-depth insights on developer careers, tech trends, and financial tips.
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Today Lab solves complex calculations and data processing quickly and easily.
Start right now without installation or sign-up.

Real-time & Latest Data: We reflect the latest 2025/2026 tax laws, exchange rates, and stock prices to provide accurate results.
Privacy First: Sensitive data like images, videos, and JSON are processed entirely in your browser and never sent to servers.
Free & Open: All features for developers and creators are 100% free. Use freely without ads or hidden fees.