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Workbench

JSON Formatter & Validator

Format, validate, and minify JSON with error highlighting and tree view

JSON Diff

Compare two JSON objects with color-coded diff visualization

JSON → YAML

Convert JSON to YAML format instantly

YAML → JSON

Convert YAML to JSON format instantly

JSON → CSV

Convert JSON arrays to CSV with automatic header extraction

CSV → JSON

Convert CSV to JSON with type inference

JSON → TypeScript

Generate TypeScript interfaces from JSON data

JSON → XML

Convert JSON to XML format

XML → JSON

Convert XML to JSON format

Base64 Image

Encode images to Base64 data URIs or decode a Base64 string back to a viewable image

Base64 Encode

Encode text to Base64 with full UTF-8 support

Base64 Decode

Decode Base64 strings back to plain text

URL Encode

URL-encode text with percent-encoding

URL Decode

Decode URL-encoded strings

HTML Entity Encode

Encode special characters to HTML entities

HTML Entity Decode

Decode HTML entities back to plain text

Text → Hex

Convert text to hexadecimal bytes

Hex → Text

Convert hex bytes back to text

Text → Binary

Convert text to binary representation

Binary → Text

Convert binary back to text

ROT13

Encode or decode text with ROT13 cipher

Morse Code

Convert text to Morse code and back

String Inspector

Deep-inspect any string — length, bytes, Unicode codepoints, char frequency, entropy

Markdown Preview

Live side-by-side Markdown editor and rendered HTML preview with GFM support

Regex Tester

Test regular expressions with live match highlighting, group capture view, and substitution

Case Converter

Convert text to camelCase, PascalCase, snake_case, kebab-case, and more

Text Diff

Compare two texts and highlight differences

Word Counter

Count words, characters, sentences with reading time

Slug Generator

Generate URL-friendly slugs from text

Lorem Ipsum

Generate placeholder text in paragraphs, sentences, or words

Line Sorter

Sort, reverse, deduplicate, or shuffle lines

Find & Replace

Find and replace with plain text or regex

Whitespace Normalizer

Trim lines, collapse spaces, remove blank lines

String Reverse

Reverse any string with full Unicode support

Markdown → HTML

Convert Markdown to HTML with GFM support

HTML → Markdown

Convert HTML back to Markdown

HTML → Plain Text

Strip all HTML tags and return plain text

Strip Markdown

Remove all Markdown formatting

XML Tools Suite

Validate XML, pretty-print & minify, run XPath queries, and search for strings — all in one place

AES-256-GCM Encryptor

Encrypt and decrypt text with AES-256-GCM — password-based, client-side only

Hash Generator

Generate SHA-1, SHA-256, SHA-384, SHA-512 hashes

UUID / ULID / Nano ID

Generate UUID v4, ULID, or Nano ID values with one click

HTML → JSX

Convert HTML to React JSX — class→className, self-closing void elements, camelCase events

HTML Preview

Live-render HTML in a sandboxed iframe with optional JavaScript execution

Color Converter

Convert HEX, RGB, HSL colors with preview

Unix Timestamp

Convert Unix timestamps to dates and back

Cron Parser

Parse cron expressions with plain-English description

Password Generator

Generate secure random passwords

QR Code Generator

Generate QR codes from text or URLs

URL Parser

Parse URLs into components

Base Converter

Convert between decimal, hex, binary, octal

CSS Minifier

Minify and compress CSS

HTML Minifier

Minify and compress HTML

SQL Formatter

Format and pretty-print SQL queries

TOML → JSON

Convert TOML to JSON format

cURL → Fetch

Convert cURL commands to JavaScript fetch()

cURL Formatter

Normalize messy cURL into clean, copy-pasteable commands (quotes, flags, line breaks)

String Escape

Escape strings for JSON, JS, SQL, Regex

MIME Type Lookup

Look up MIME types by file extension

Contrast Checker (WCAG)

Foreground & background — WCAG contrast ratio

CSS Gradient Generator

Linear gradient preview + CSS snippet

PDF Page Editor

Remove pages or extract selected pages into a new PDF — 100% client-side with pdf-lib

Background Remover

Remove image backgrounds instantly with AI — runs 100% in your browser, no uploads, no API key

Image Resizer

Resize JPG, PNG, or WebP in the browser — set width & height, optional aspect lock, download result

Image Compressor

Reduce file size with quality control — JPEG / WebP, same dimensions (browser-side)

Temperature Converter

Convert Celsius, Fahrenheit, and Kelvin

Byte Converter

Convert B, KB, MB, GB, TB, PB

Unit Converter

Convert length, weight, area, volume, speed

Number → Words

Convert numbers to English words

Roman Numerals

Convert between Roman numerals and decimal

Timezone Converter

Convert times between world time zones

Duration Converter

Convert seconds to HH:MM:SS and breakdown

Percentage Calculator

Calculate percentages — X% of Y, % change

Aspect Ratio Calculator

Calculate aspect ratio from dimensions

Currency Converter

Live rates via Frankfurter (ECB) — amount & currency pair

Simple Interest

principal=… rate=… time=… (% per year, years)

GST / VAT Calculator

amount + rate; exclusive adds tax or inclusive extracts tax

Discount Calculator

price=… discount=… (% off)

Tip Calculator

bill=… tip=… split=…

ROI Calculator

cost & gain, or cost & profit

Profit & Loss

revenue=… cost=… → margin & markup

Compound Interest

Future value with compounding frequency — interactive form

Loan EMI Calculator

Monthly EMI, total interest, amortization-style summary

BMI Calculator

Body mass index from height & weight with WHO-style bands

BMR Calculator

Basal metabolic rate (Mifflin–St Jeor); key=value lines

Calorie Calculator (TDEE)

TDEE from BMR × activity level

Water Intake

Rough daily fluid estimate from weight (+ exercise)

Body Fat Estimator

Deurenberg formula from BMI, age, sex — estimate only

Quadratic Solver

Roots of ax²+bx+c=0 (real or complex)

Pythagorean Theorem

Find missing side (two of a, b, c)

GCD & LCM

Greatest common divisor & least common multiple

World Clock

Current time across major cities (same grid as timezone tool)

Age Calculator

Exact age from birth date — calendar UI

Days Between Dates

from=YYYY-MM-DD to=YYYY-MM-DD

Countdown

Time remaining until a target date

ISO Week Number

ISO week & year for any date

Due Date (pregnancy)

EDD from LMP (+280 days, Naegele)