Developer Tools
Free online developer tools for JSON, XML, YAML, SQL, encoding, hashing and browser-based workflows.
Showing 115 tools in Developer Tools. Type a keyword to search all tools globally.
API Endpoint List Cleaner
Clean and deduplicate endpoint lists.
Developer ToolsASCII Converter
Show ASCII codes for text.
Developer ToolsBase64 Decoder
Decode Base64 to text.
Developer ToolsBase64 Encoder
Encode text to Base64.
Developer ToolsBasic Auth Header Generator
Generate a Basic Auth header from user and password.
Developer ToolsBearer Token Header Generator
Generate an Authorization Bearer header.
Developer ToolsBinary Converter
Convert text to binary bytes.
Developer ToolsBinary to Decimal
Convert binary numbers to decimal.
Developer ToolsBinary to Text
Convert binary bytes to text.
Developer ToolsCORS Header Builder
Generate common CORS header examples.
Developer ToolsCSP Header Builder
Build a basic Content Security Policy header.
Developer ToolsCSS Beautifier
Beautify CSS code.
Developer ToolsCSS Border Radius Generator
Generate border-radius CSS.
Developer ToolsCSS Box Shadow Generator
Generate CSS box-shadow values.
Developer ToolsCSS Clamp Generator
Generate CSS clamp responsive values.
Developer ToolsCSS Flexbox Generator
Generate common flexbox CSS.
Developer ToolsCSS Gradient Generator
Generate linear-gradient CSS.
Developer ToolsCSS Grid Generator
Generate simple CSS grid code.
Developer ToolsCSS Minifier
Minify CSS code.
Developer ToolsCSV to JSON
Convert CSV rows to JSON objects.
Developer ToolsCSV to XML
Convert CSV rows into basic XML records.
Developer ToolsChangelog Generator
Generate a changelog section.
Developer ToolsColor Hex to RGB
Convert HEX color to RGB.
Developer ToolsCron Expression Helper
Explain common cron expression fields.
Developer ToolsCurl Command Builder
Build a curl command from URL and method.
Developer ToolsCurl to Fetch Converter
Convert a simple curl command to JavaScript fetch.
Developer ToolsDecimal to Binary
Convert decimal numbers to binary.
Developer ToolsDocker Compose Starter
Generate a basic docker-compose.yml starter.
Developer ToolsDockerfile Starter
Generate a basic Dockerfile starter.
Developer ToolsENV File Parser
Parse .env lines into key value pairs.
Developer ToolsENV to JSON
Convert .env variables into JSON.
Developer ToolsFavicon HTML Generator
Generate favicon link tags.
Developer ToolsFetch to Curl Converter
Convert a fetch request outline to curl.
Developer ToolsGUID Generator
Generate random GUIDs.
Developer ToolsGitignore Generator
Generate .gitignore templates.
Developer ToolsGraphQL Query Formatter
Format GraphQL queries.
Developer ToolsGraphQL Variables Formatter
Format GraphQL variables JSON.
Developer ToolsHTML Beautifier
Beautify HTML markup.
Developer ToolsHTML Decoder
Decode HTML entities.
Developer ToolsHTML Encoder
Encode HTML entities.
Developer ToolsHTML Form Generator
Generate a simple HTML form.
Developer ToolsHTML List Generator
Generate HTML lists from lines.
Developer ToolsHTML Minifier
Minify HTML markup.
Developer ToolsHTML Table Generator
Generate an HTML table from lines.
Developer ToolsHTML to Markdown
Convert simple HTML tags to Markdown.
Developer ToolsHTTP Header Generator
Generate common HTTP header snippets.
Developer ToolsHTTP Header Parser
Parse HTTP headers into readable pairs.
Developer ToolsHTTP Request Builder
Generate a plain HTTP request.
Developer ToolsHTTP Status Code Lookup
Explain common HTTP status codes.
Developer ToolsHex Converter
Convert text to hexadecimal.
Developer ToolsHex to Text
Convert hexadecimal to text.
Developer ToolsINI Formatter
Format INI configuration files.
Developer ToolsIframe Generator
Generate responsive iframe HTML.
Developer ToolsJS Beautifier
Beautify JavaScript code lightly.
Developer ToolsJS Minifier
Minify simple JavaScript safely by removing comments and repeated spaces.
Developer ToolsJSON Array Flattener
Flatten arrays and objects into simple rows.
Developer ToolsJSON Diff Checker
Compare two JSON blocks and identify differences.
Developer ToolsJSON Escape
Escape JSON text for safe string usage.
Developer ToolsJSON Formatter
Format and beautify JSON data instantly.
Developer ToolsJSON Key Extractor
Extract all keys from JSON objects.
Developer ToolsJSON Minifier
Minify JSON by removing unnecessary whitespace.
Developer ToolsJSON Path Finder
Find likely JSON paths from sample data.
Developer ToolsJSON Schema Generator
Generate a simple JSON schema from sample JSON.
Developer ToolsJSON Schema Validator
Check JSON against a simple schema draft.
Developer ToolsJSON Sorter
Sort JSON object keys alphabetically.
Developer ToolsJSON Tree Viewer
Create a readable tree outline from JSON.
Developer ToolsJSON Unescape
Unescape JSON string content.
Developer ToolsJSON Validator
Check whether JSON is valid.
Developer ToolsJSON to CSV
Convert an array of JSON objects to CSV.
Developer ToolsJSON to ENV
Convert flat JSON into .env variables.
Developer ToolsJSON to YAML
Convert JSON into readable YAML-like text.
Developer ToolsJWT Claims Viewer
View common JWT claims.
Developer ToolsJWT Decoder
Decode JWT header and payload.
Developer ToolsJWT Expiry Checker
Decode JWT expiry timestamp.
Developer ToolsLicense Notice Generator
Generate basic license notice text.
Developer ToolsLorem Ipsum Generator
Generate placeholder Lorem Ipsum text.
Developer ToolsMD5 Generator
Placeholder MD5 notice and SHA alternatives.
Developer ToolsMIME Type Lookup
Look up common MIME types by extension.
Developer ToolsMarkdown to HTML
Convert basic Markdown to HTML.
Developer ToolsMeta Viewport Generator
Generate mobile viewport meta tag.
Developer ToolsNPM Script Builder
Build common npm scripts.
Developer ToolsOpenAPI Skeleton Generator
Generate a basic OpenAPI YAML skeleton.
Developer ToolsPackage JSON Starter
Generate a basic package.json file.
Developer ToolsPassword Generator
Generate strong random passwords.
Developer ToolsRGB to Hex
Convert RGB values to HEX.
Developer ToolsRandom String Generator
Generate random strings.
Developer ToolsReadme Generator
Generate a simple README template.
Developer ToolsRegex Escape
Escape text for use in a regular expression.
Developer ToolsRegex Match Extractor
Extract regex matches from text.
Developer ToolsRegex Tester
Test a regex pattern against text.
Developer ToolsSHA1 Generator
Generate a SHA-1 hash.
Developer ToolsSHA256 Generator
Generate a SHA-256 hash.
Developer ToolsSHA512 Generator
Generate a SHA-512 hash.
Developer ToolsSQL Formatter
Format common SQL keywords onto readable lines.
Developer ToolsSQL Minifier
Minify SQL by removing repeated whitespace.
Developer ToolsSemVer Comparator
Compare semantic version numbers.
Developer ToolsSlug Generator
Convert text into URL-friendly slugs.
Developer ToolsSwagger Path Builder
Create a starter Swagger path block.
Developer ToolsTOML Formatter
Format basic TOML configuration text.
Developer ToolsTimestamp Converter
Convert Unix timestamp to date.
Developer ToolsURL Decoder
Decode URL-encoded text.
Developer ToolsURL Encoder
Encode text for safe URL usage.
Developer ToolsUUID Generator
Generate random UUIDs.
Developer ToolsUnicode Decoder
Decode Unicode escape sequences.
Developer ToolsUnicode Encoder
Convert characters to Unicode escape sequences.
Developer ToolsUnix Timestamp Generator
Generate the current Unix timestamp.
Developer ToolsUser Agent Parser
Extract basic browser/device hints from a user agent.
Developer ToolsVersion Bump Calculator
Suggest version bumps from change type.
Developer ToolsWebhook Payload Formatter
Format webhook payload JSON.
Developer ToolsXML Escape
Escape XML special characters.
Developer ToolsXML Formatter
Format basic XML markup.
Developer ToolsXML Minifier
Minify XML markup.
Developer ToolsXML to CSV
Convert simple XML rows into CSV format.
Developer ToolsYAML Formatter
Clean and normalize YAML-style text indentation lightly.
Developer ToolsYAML to JSON
Convert simple YAML-like key value data to JSON.
Developer Tools