About ToolboxHub — Free Online Tools

Preview Markdown formatting in real time. Write Markdown on the left, see the rendered HTML output on the right instantly.

Count words, characters, sentences, and paragraphs in your text. Track reading time and get detailed text statistics instantly.

Generate Lorem Ipsum placeholder text for designs and mockups. Customize the number of paragraphs, words, or sentences of dummy text.

Convert text between UPPERCASE, lowercase, Title Case, Sentence case, camelCase, PascalCase, snake_case, kebab-case and more.

Spell any number in English words — large numbers, decimals, currency amounts, and ordinals. Great for cheques and accessibility.

Remove duplicate lines from text with case-insensitive, trim, sort, and keep first/last options. See how many duplicates were removed.

Format, validate, and beautify JSON data instantly. Supports minification, syntax highlighting, and error detection for malformed JSON.

Encode and decode Base64 strings online. Convert text to Base64 or decode Base64 back to plain text instantly in your browser.

Encode and decode URLs and query strings. Percent-encode special characters for safe URL transmission or decode encoded URLs.

Generate RFC 4122 compliant UUIDs (v1, v4) online. Create single or bulk universally unique identifiers instantly.

Generate cryptographic hashes from text. Supports MD5, SHA-1, SHA-256, SHA-512 hashing algorithms for checksums and data integrity.

Test and debug regular expressions in real time. Visualize matches, groups, and flags with instant feedback and pattern explanation.

Decode and inspect JSON Web Tokens (JWT) online. View header, payload, and signature without a secret key. Debug JWT authentication issues.

Minify and compress CSS code online. Remove whitespace, comments, and redundant code to reduce file size and improve page load speed.

Generate strong, random passwords and memorable passphrases with a live entropy-based strength meter. Powered by your browser’s secure crypto API.

Compare two blocks of text or code and instantly see added, removed, and unchanged lines side-by-side or unified.

Visually build linear, radial, and conic CSS gradients with draggable color stops and copy-ready CSS code.

Craft layered CSS box-shadows with a live preview, inset toggle, and production-ready output you can copy in one click.

Translate a cron schedule into plain English, validate each field, and preview the next run times. Includes common presets.

Convert a JSON array of objects to CSV with nested-key flattening, custom delimiters, and proper quote escaping. Copy or download.

Convert CSV to a JSON array of objects with automatic delimiter detection and pretty or minified output. Copy or download.

Calculate percentages easily online. Find percentage of a number, percentage change, increase, decrease, and reverse percentage calculations.

Calculate your Body Mass Index (BMI) online. Supports both metric and imperial units. Understand your BMI category and healthy weight range.

Calculate restaurant tips quickly. Split bills among multiple people and determine the exact tip amount per person for any service level.

Calculate exact age from date of birth. Find age in years, months, and days, or determine the time between any two dates.

Calculate monthly mortgage payments, total interest paid, and amortization schedule. Input loan amount, interest rate, and term.

Calculate your monthly loan payment, total interest, and total cost with a full amortization breakdown and principal-vs-interest chart.

See how savings grow over time with compound interest and regular contributions, with a year-by-year growth chart and breakdown.

Find the sale price and amount saved from a percentage off, with reverse (what % off?) and stacked-discount modes.

Calculate your BMR, maintenance calories (TDEE), and weight-loss or gain targets using the Mifflin-St Jeor equation.

Count the exact time between two dates in years, months, days, weeks, hours, and business days — or add and subtract days from a date.

Convert between units of length, weight, area, volume, and more. Supports metric and imperial systems for quick and accurate conversions.

Convert temperatures between Celsius, Fahrenheit, and Kelvin instantly. Simple and accurate temperature unit conversion online.

Convert numbers between binary, octal, decimal, and hexadecimal. Supports any custom base from 2 to 36 for number system conversions.

Convert Unix timestamps to human-readable dates and vice versa. Supports milliseconds and seconds, with timezone conversion.

Convert colors between HEX, RGB, HSL, and HSV color models. Get color values for CSS, design tools, and web development.

Pick colors visually and get HEX, RGB, HSL values. Generate color palettes, shades, and complementary colors for web design.

Convert numbers to Roman numerals and back, with overline notation for large values up to 3,999,999. Includes a symbol reference.

Convert text to binary and back — plus hex and decimal ASCII — with selectable separators and full UTF-8 support.

Convert between bytes, KB, MB, GB, TB, PB, bits and binary units (KiB/MiB/GiB), with a 1000 vs 1024 toggle.

Translate text to Morse code and back, with custom symbols, audio playback, and a full reference chart for letters, numbers and punctuation.

Convert a time between IANA timezones and view live world clocks for major cities, powered by your browser’s Intl API.