Free Online Tools for Developers

Beautify or minify your HTML code for readability or performance.

Beautify or minify your CSS code for readability or performance.

Beautify, format, or minify your JavaScript code.

Beautify and format your TypeScript code using Prettier.

Format, validate, and beautify your JSON data for clarity.

Format and beautify your SQL queries for better readability.

Neatly format your XML data into a readable, indented structure.

Beautify your YAML files with proper indentation and structure.

Format your Java source code according to standard conventions.

Beautify your PHP code, adhering to PSR-1/PSR-2 standards.

Encode or decode Uniform Resource Locators (URLs).

Encode HTML characters to their entity equivalents or decode them.

Convert data between popular formats like JSON, YAML, and CSV.

Encode and decode text using Base64 encoding.

Convert Markdown to HTML with a live preview. 100% client-side and secure.

Pick a color and convert it between HEX, RGB, and HSL formats.

A utility to convert between pixels, rems, ems, and other CSS units.

Convert a timestamp to a human-readable date and vice-versa.

Convert between different time units (seconds, minutes, hours, days, etc.).

Test your regular expressions in real-time.

Compare two blocks of text and highlight the differences.

Compare two CSV files side-by-side and highlight the differences.

Convert text to UPPERCASE, lowercase, Title Case, Sentence case, and more.

Find all occurrences of a word or phrase and replace them.

Add a custom prefix or suffix to every line of text.

Reverse characters, words, or entire lines of text instantly.

Count words, characters, sentences, and paragraphs in your text.

Effortlessly remove any duplicate lines from a block of text.

Remove all HTML tags from text, leaving only the plain content.

Remove extra spaces, tabs, and empty lines from your text.

Add sequential line numbers to the beginning of each line.

Sort lines of text alphabetically (A-Z, Z-A) or by line length.

Generate MD5, SHA-1, SHA-256, or SHA-512 hashes from your text instantly.

Generate random UUIDs (v1 and v4) instantly.

Generate secure, strong, and random passwords.

Generate cryptographically strong random strings with customized characters.

Generate single or multiple random numbers between a custom range.

Generate a .gitignore file for your project by selecting relevant templates.

Generate massive amounts of fake data (JSON) based on a custom schema.

Convert CSV, Excel (XLSX), and JSON files to SQL INSERT/CREATE scripts instantly. Privacy-focused, client-side only.

Generate QR codes for URLs, text, Wi-Fi, and more.

Create and customize CSS gradients (linear and radial).

Visually build and customize box-shadow CSS properties.

Generate simple SVG placeholder shapes with custom dimensions and colors.

Create a harmonious set of font sizes for headings and paragraphs.

A visual editor to create custom shapes with the clip-path property.

Simulate a web server client-side. Define routes and responses, then test them.

Calculate your age based on your birth date.

Calculate the difference between two dates.

Calculate height based on a width and an aspect ratio (e.g., 16:9).

Calculate Goods and Services Tax (GST) for any amount.

Calculate the future value of an investment with compound interest.

Estimate monthly payments and total interest for a loan.

Generate and download a petty cash voucher.

Create and download a simple accounting ledger sheet.

Generate and download an expense voucher/reimbursement slip.

Create and download a weekly time sheet / attendance card.

Generate and download a cash deposit slip.

Generate and download a cash withdrawal slip.

Calculate your Body Mass Index.