Tool collections

Wraplet topics

Curated collections of related tools for calculators, finance, health, student, and developer workflows.

Free JSON Tools

Format, validate, compare, and convert JSON in your browser with free developer utilities from Wraplet.

Decode JWT payloads, inspect token claims, and generate hashes locally in your browser.

Encode and decode Base64 strings, URLs, and web-safe text locally with Wraplet.

Generate UUID values quickly for development, testing, fixtures, and database records.

Format SQL queries for readability and debugging with a private browser-based SQL formatter.

Test regular expressions and inspect matches in your browser with a fast regex utility.

Convert Unix timestamps and ISO dates with a browser-based date and time utility.

A fast collection of private browser-based tools for JSON, JWT, Base64, SQL, regex, UUIDs, timestamps, and more.

Everyday calculators for percentages, ages, dates, and common math, all running privately in your browser.

Loan, mortgage, savings, interest, and tax calculators to plan and check everyday money decisions.

BMI, calorie, and due-date calculators for quick, non-diagnostic health estimates.

GPA and grade calculators for students who need a fast, accurate weighted average.