Developer Tools

Free developer utilities in your browser, JSON formatter, UUID generator, hash tools, regex tester, JWT decoder, SQL formatter, and more. No sign-up needed.

• HTML Table Generator — Creating and customizing HTML tables with real-time preview, perfect for developers and content creators who need clean, styled table markup without writing code manually. Free online HTML table generator, no account required.
• Credit Card Generator — Developer tool for generating valid test credit card numbers using the Luhn algorithm, perfect for testing payment forms, e-commerce checkouts, and billing systems without using real card data.
• Code to Image — Beautiful tool for converting code snippets into stunning, shareable images with syntax highlighting and custom themes perfect for developers who want to share clean, visual code on social media and blogs. Free online code screenshot tool, no signup needed.
• Image Ratio Calculator — Simple and accurate tool for calculating and converting aspect ratios for any screen, image, or video perfect for designers and developers who need precise dimensions for responsive layouts and media projects. Free aspect ratio calculator, works in your browser.
• YAML to JSON Converter — Fast and reliable tool for converting YAML to JSON and JSON to YAML instantly, perfect for developers working with config files, APIs, and cloud infrastructure.
• JSON to TypeScript — Smart tool that instantly converts JSON objects into clean TypeScript interfaces and types, saving developers time and eliminating manual type definition work.
• XML Prettify & Formatter — Free online XML prettify and format tool. Clean raw or minified XML code with proper indentation, making it easy to read, debug, and validate XML documents.
• Loading Spinner Builder — Visual tool for creating and customizing loading spinners with real-time preview, perfect for building smooth, branded loading states for any web project. Free CSS spinner generator, copy code instantly with no account needed.
• JavaScript Minifier — Fast and lightweight tool for minifying JavaScript code by removing whitespace, comments, and redundant characters reducing file size for better web performance. Free online JavaScript minifier, works in your browser with no signup required.
• Cron Generator — A simple tool for building and validating cron expressions visually, perfect for developers who need to schedule tasks without memorizing cron syntax.
• CSS Easing Generator — A visual tool for creating and editing cubic bezier curves with real-time preview, perfect for crafting smooth, custom CSS animation timing functions.
• JSON Formatter — Format, validate, and minify JSON. Instant syntax checking. Free online JSON formatter and validator, works in your browser with no signup required.
• UUID Generator — Generate random UUIDs (v4) and ULIDs instantly. Free online UUID and ULID generator, works in your browser with no account or installation needed.
• Hash Generator — Generate MD5, SHA-1, SHA-256, SHA-512 hashes from text. Free online hash generator, runs entirely in your browser, your data never leaves your device.
• Regex Tester — Test and debug regular expressions with live match highlighting. Free online regex tester with real-time feedback, no signup or installation required.
• Timestamp Converter — Convert Unix timestamps to human-readable dates and back. Free online Unix timestamp converter, works instantly in your browser with no account needed.
• Markdown to HTML — Convert Markdown to HTML with live preview. Free online Markdown to HTML converter, works entirely in your browser with no signup required.
• JSON to CSV Converter — Convert JSON arrays to CSV spreadsheet format and vice versa. Free online JSON to CSV converter, works instantly in your browser with no account needed.
• HTML Formatter — Format and minify HTML code with proper indentation. Free online HTML formatter and minifier, works in your browser with no signup or installation required.
• CSS Minifier — Minify CSS code to reduce file size. Remove comments and whitespace. Free online CSS minifier, runs entirely in your browser with no account needed.
• SQL Formatter — Format and beautify SQL queries for better readability. Free online SQL formatter, works in your browser with no signup or installation required.
• Fake Data Generator — Generate realistic fake data: names, addresses, emails, companies, and more. Free online fake data generator for testing and development, works in your browser instantly.
• RSA Key Generator Online — Generate RSA and ECDSA key pairs in your browser. Private key never leaves your device. Free online key pair generator, fully secure, no data sent to any server.