Privacy First
No server round-trips. Your data stays in the browser.
All utilities run client-side. No data leaves your browser.
Format, validate, and inspect JSON payloads directly in the browser without sending data to a server.
Format, validate, and minify XML documents directly in the browser without uploading data to a server.
Convert epoch timestamps to readable dates and turn human-readable dates back into Unix seconds or milliseconds.
Quickly encode text to Base64 or decode Base64 strings back into readable content in the browser.
Decode JWT header and payload segments in the browser so you can inspect claims without sending tokens to a server.
Compare two text blocks with line-level and word-level highlighting to review edits, prompts, docs, or config changes.
Flatten multiline CLI snippets, shell continuations, and markdown-fenced command blocks into a single copy-ready line in the browser.
Generate QR codes from URLs or plain text instantly so you can share links, test flows, or hand off data between devices.
Calculate exact age from a birth date on today or any custom reference date, including years, months, days, total days lived, and time until the next birthday.
Calculate D-day countdowns or elapsed days between a target date and a reference date, including D-10, D-Day, and D+3 style results.
Convert temperature, length, and weight units such as Celsius to Fahrenheit, meters to feet, and kilograms to pounds in one browser-based tool.
Estimate monthly payments for mortgages, car loans, amortizing loans, and interest-only loans with total repayment and total interest figures.
Calculate body mass index from height and weight, then view the BMI category instantly.
Calculate percentages, reverse percentages, and percentage changes in one browser-based calculator.
Count words, characters, characters without spaces, lines, paragraphs, and estimated reading time from pasted text.
Calculate the number of days, weeks, and months between two dates.
Convert whole numbers between decimal, binary, and hexadecimal formats instantly in the browser.
Convert HEX color codes to RGB values instantly for design, UI, and frontend work.
Generate strong random passwords with configurable length, symbols, numbers, and mixed case options.
Encode query values and URL fragments safely, or decode percent-encoded strings back into readable text in the browser.
Generate RFC 4122 version 4 UUIDs in the browser for mock data, IDs, tests, and request correlation.
Convert identifiers between snake_case and camelCase for code, configs, APIs, and database fields.
Convert titles and free-form text into lowercase URL slugs for posts, docs, routes, and filenames.
Convert text to lowercase or uppercase instantly for cleanup, formatting, and quick copy edits.
Remove repeated lines from multiline text while preserving the first occurrence of each entry.
Sort multiline text alphabetically with numeric-aware ordering to organize copied lists quickly.
Convert a date and time between common global time zones such as UTC, New York, London, Seoul, and Tokyo.
No server round-trips. Your data stays in the browser.
No accounts required. Open a tool and start working.