All-in-One Online Tools

JSON Formatter

Format, validate and minify JSON

Base64 Encoder

Encode and decode Base64 strings

URL Encoder

Encode and decode URL components

Unix Timestamp

Convert between timestamps and dates

UUID Generator

Generate random UUID v4 values instantly — create up to 10 at once, copy one or all. No server needed, runs entirely in your browser.

Hash Generator

Compute MD5, SHA-1 and SHA-256 cryptographic hashes for any text instantly. Browser-side computation — no uploads, no server involved.

JWT Decoder

Decode and inspect JWT tokens without a secret key. View header algorithm, payload claims and expiry — useful for debugging API auth.

Case Converter

Convert text between camelCase, PascalCase, snake_case, kebab-case and UPPER_SNAKE_CASE at once. Ideal for coding and API naming.

Number Base Converter

Convert integers between binary, octal, decimal and hexadecimal. Type in any field and all other bases update instantly.

HTML Entity Encoder

Encode and decode HTML entities — convert <, >, &, " and ' to their entity equivalents and back. Essential for safe HTML and template code.

Color Picker

Convert between HEX, RGB and HSL

QR Code Generator

Generate QR codes from text or URLs

CSS Gradient Generator

Create CSS linear and radial gradients visually. Pick two colors, choose direction, get the CSS code instantly — ready to paste into your stylesheet.

Password Generator

Generate secure random passwords

Unit Converter

Convert length, weight and temperature

Word Counter

Count characters, words and lines

Markdown Preview

Preview Markdown in real time

Lorem Ipsum Generator

Generate Lorem Ipsum placeholder text by word, sentence or paragraph count. Start with classic lorem ipsum or randomised — copy with one click.

Percentage Calculator

Calculate percentages three ways: what is X% of Y, X is what percent of Y, and percentage change between two values. Fast and simple.

Text Diff

Compare two text blocks and highlight differences line by line. Added lines in green, removed in red — paste and compare instantly.

BMI Calculator

Calculate your Body Mass Index instantly. Enter height and weight in metric or imperial units — see your BMI score and health category right away.

Age Calculator

Enter your birthdate to find your exact age in years, months and days. Also shows how many days until your next birthday.

Loan Calculator

Calculate monthly loan payments, total interest and total repayment. Enter principal, annual interest rate and loan term in months.

Tip Calculator

Split the bill easily — enter the total, tip percentage and number of people to see how much each person owes including tip.

Compound Interest Calculator

See how compound interest grows your money. Enter principal, annual rate, years and compounding frequency to calculate your final balance.

Discount Calculator

Three discount modes: find the sale price, calculate what percent off you got, or find the original price. Fast and straightforward.

Slug Generator

Convert any title or phrase into a clean URL slug — lowercase, hyphens instead of spaces, special characters stripped. Ideal for blog posts and page routes.

Line Sorter

Sort any list of lines alphabetically, by length, or randomly. Supports case-insensitive sorting — useful for organising lists, imports or CSV data.

Remove Duplicates

Remove duplicate lines from any block of text. Choose case-insensitive matching or whitespace trimming to control what counts as a duplicate.

Text Repeater

Repeat any text a set number of times with a configurable separator — newline, space, comma or custom. Great for test data and placeholder content.

String Reverse

Reverse text three ways: the entire string, each line individually, or each word. Handy for programming exercises, palindrome checks and fun experiments.

Whitespace Cleaner

Clean up messy whitespace: trim line edges, collapse multiple spaces, remove blank lines, strip indentation, or convert full-width spaces to regular spaces.

JSON ↔ CSV Converter

Convert between JSON arrays and CSV tables. Supports nested object flattening, one-click CSV download. Runs entirely in your browser — no uploads.

JSON ↔ YAML Converter

Convert between JSON and YAML instantly. Preserves structure and indentation — ideal for config files, CI/CD pipelines and Kubernetes manifests.

Markdown to HTML

Convert Markdown to clean HTML instantly. Preview the rendered output and copy raw HTML — great for static sites, emails and blog content.

XML Formatter

Format or minify XML with one click. Auto-indents for readability, validates syntax in real time and highlights errors at the exact position.

Color Converter

Convert colors between HEX, RGB, HSL and OKLCH formats instantly. Type in any format and all others update in real time with a live color preview.

Number Formatter

Format numbers with thousand separators, decimal places, currency symbols or scientific notation. Supports multiple locale formats for global use.

Image Resizer

Resize images in your browser. Set width, height, or scale by percentage, then download instantly. Runs entirely offline and locally for absolute privacy.

Image Base64 Converter

Convert image files to Base64 Data URLs, or decode Base64 strings back to previewable, downloadable images. 100% client-side.

Image Color Picker

Upload any image and click anywhere to extract the exact pixel color. Outputs in HEX, RGB, and HSL formats instantly.

SVG Optimizer

Optimize and clean SVG code. Strip editor junk, comments, and unused metadata to reduce SVG file size while preserving original quality.

Aspect Ratio Calculator

Quickly calculate and convert image or video aspect ratios. Input a dimension and a ratio (like 16:9, 4:3, 1:1) to get the corresponding side.

SVG Viewer

Paste SVG code and preview the rendered result instantly. Supports background toggle (white, dark, checkerboard) and zoom controls. Rendered in a sandboxed iframe for complete XSS isolation.