Essential developer utilities â formatters, encoders, converters, and more. All free, all browser-based.
Format, beautify, minify, and validate JSON data instantly in your browser.
Use Tool âValidate JSON syntax and find errors with clear, highlighted error messages.
Use Tool âParse URLs into components â protocol, host, path, query params, and hash.
Use Tool âEncode or decode HTML entities â prevent XSS and display HTML as text.
Use Tool âLook up HTML entities by name, number, or symbol with instant search.
Use Tool âGenerate strong, secure passwords with customizable length and character sets.
Use Tool âCalculate file hashes (MD5, SHA-1, SHA-256) to verify file integrity.
Use Tool âGenerate HTML tables visually with customizable rows, columns, and styles.
Use Tool âGenerate placeholder images with custom dimensions, colors, and text.
Use Tool âGenerate placeholder lorem ipsum text with customizable paragraphs and words.
Use Tool âGenerate placeholder text in multiple languages including Chinese, Japanese, and more.
Use Tool âGenerate random or specific MAC addresses for testing and development.
Use Tool âConvert numbers between any base (2-36) with support for custom bases.
Use Tool âConvert between Unix timestamps, ISO dates, and human-readable formats.
Use Tool âGenerate beautiful color palettes and export them for your projects.
Use Tool âQuick reference for regular expression syntax, patterns, and examples.
Use Tool âLook up IP address details including location, ISP, and geolocation data.
Use Tool âCheck SSL certificate details, expiration date, and chain for any domain.
Use Tool âComplete reference for HTTP status codes with descriptions and examples.
Use Tool âAnalyze meta tags of any URL â title, description, OG tags, and more.
Use Tool âParse user agent strings to detect browser, OS, and device information.
Use Tool âCreate beautiful CSS gradients with a visual editor and copy the code.
Use Tool âBuild and explain cron expressions with an interactive visual editor.
Use Tool âCalculate IPv4 subnets, network ranges, broadcast addresses, and more.
Use Tool âConvert text to uppercase, lowercase, title case, sentence case, and more.
Use Tool âCount characters with and without spaces â great for Twitter, meta descriptions.
Use Tool âSort and organize lists alphabetically with options for case handling.
Use Tool âBrowse and copy emojis with search â great for commit messages and docs.
Use Tool â