JSON Formatter
Format, validate and minify JSON with syntax highlighting
DataAll Developer Tools
Browse our complete collection of 112 free developer utilities. All tools run in your browser for instant results and complete privacy.
Base64 Encode & Decode
Encode text to Base64 or decode Base64 back to text, with UTF-8 support
EncodingJWT Decoder
Decode JWT tokens locally in your browser to inspect headers, claims, and token expiration
SecurityUUID Generator
Generate random UUID v4 identifiers instantly for database keys, events, and distributed systems
TextUUID v7 Generator
Generate RFC 9562 UUID v7 identifiers with time ordering and strong random entropy
TextTimestamp Converter
Convert Unix timestamps and human dates in seconds or milliseconds with timezone-aware output
Date TimeURL Encode & Decode
Percent-encode text for query strings and paths, or decode URL-encoded values back to text
NetworkHash Generator
Generate SHA hashes for text and files to verify integrity and compare cryptographic fingerprints
SecurityRegex Tester
Test and debug regular expressions with real-time matches, groups, and edge-case validation
TextSQL Formatter
Format and beautify SQL queries with readable indentation for reviews, debugging, and optimization
DataCron Parser
Parse and explain cron expressions in plain language with scheduling context and next-run insight
Date TimeXML Formatter
Format and beautify XML documents with cleaner structure for integrations and schema troubleshooting
DataHTML Minifier
Minify HTML to reduce payload size and improve page delivery while preserving valid markup
TextCSS Minifier
Minify CSS to reduce file size and speed up rendering without changing visual output
TextMarkdown to HTML
Render Markdown to sanitized HTML with live preview for documentation and content workflows
TextJSON Diff
Compare two JSON objects and visualize differences with detailed change tracking
Json ToolsJSONPath Tester
Test and validate JSONPath expressions against JSON documents with real-time results
Json ToolsJSON to CSV
Convert JSON arrays to CSV format with configurable delimiters and headers
Json ToolsCSV to JSON
Convert CSV data to JSON format with automatic header detection and type inference
Json ToolsJSON to Types Generator
Generate TypeScript, Python dataclass, Go struct, and PHP DTO types from JSON
Json ToolsJSON Mock Data Generator
Generate realistic mock JSON data from a schema or example with configurable seed
Json ToolsYAML Formatter & Validator
Format, validate and inspect YAML documents with line-level error messages
DataJSON ⇄ YAML Converter
Convert JSON to YAML or YAML to JSON with 2- or 4-space indentation
DataXML Validator
Validate XML documents with DTD and XSD schema support
DataURL Parser & Query String Analyzer
Break a URL into its components, list its query parameters and rebuild URLs from parts
NetworkHTML Encode/Decode
Encode and decode HTML entities for safe text display
EncodingUnicode Escape/Unescape
Escape and unescape Unicode characters for various programming contexts
EncodingBase64URL Encode/Decode
Encode and decode Base64URL format for URL-safe data transmission
EncodingJWT Generator
Generate JSON Web Tokens with multiple algorithm support and custom claims
Api ToolsJWT Signature Verifier
Verify JWT token signatures with key validation and expiration checking
Api ToolsHMAC Generator
Generate HMAC signatures using SHA-256, SHA-384, and SHA-512 algorithms
SecurityPassword Generator & Strength Analyzer
Generate strong passwords and analyze entropy, strength, and estimated crack time
SecurityWordPress Password Generator
Generate WordPress-ready passwords with compatibility and max-security presets
SecurityPHP Unserialize: to JSON, YAML or CSV
Decode PHP serialized strings into JSON, YAML or CSV without executing PHP objects
DataFile Checksum Calculator
Calculate file checksums using MD5, SHA-1, SHA-256, and SHA-512 algorithms
SecurityCurl Command Builder
Build curl commands with a visual interface for HTTP requests
Api ToolsCurl to Fetch Converter
Convert curl commands to JavaScript fetch() and vice versa
Api ToolsOpenAPI Viewer
View and explore OpenAPI 3.x specifications with interactive documentation
Api ToolsHTTP Header Inspector
Parse and analyze HTTP headers with explanations for common headers
Api ToolsJSON Schema Validator
Validate JSON documents against JSON Schema with precise path-based error reporting
Api ToolsJSON Schema to TypeScript
Generate TypeScript definitions from JSON Schema for strongly typed API contracts
Api ToolsCron Expression Generator
Generate and explain cron expressions with human-readable descriptions
Devops ToolsTimezone Converter
Convert times between timezones with daylight saving awareness
Date TimeKubernetes YAML Validator
Validate Kubernetes resource YAML with resource type detection
Devops ToolsTOML ⇄ JSON Converter & Validator
Convert TOML to JSON and back, and validate or reformat TOML configuration files
Devops ToolsEnv File Formatter & JSON Converter
Format and validate .env files, or convert them to JSON
Devops ToolsENV Diff Tool
Compare two .env files and detect missing keys and value differences
Devops ToolsCSS Specificity Calculator
Calculate CSS specificity as (a,b,c) with breakdown by selector
TextCSP Generator (Basic)
Build a valid Content-Security-Policy string from directive/source lists
SecurityPEM / Certificate Parser (Basic)
Parse PEM public keys and certificates with fingerprints and basic metadata
SecuritySmart Input Tool
Auto-detect JSON, Base64, JWT, or URL and route to decoded/formatted output
DataJSON Transform (jq-lite)
Transform JSON using a minimal DSL: select, map, filter, and rename
Json ToolsFake Data Generator (Basic)
Generate mock user/address/company datasets in JSON or CSV
DataHTML Accessibility Checker (Basic)
Check HTML snippets for missing alt text, labels, and basic ARIA naming issues
TextTool Pipeline (3-Step)
Chain up to 3 offline tools in sequence with type-compatibility checks
Devops ToolsSemver Comparator
Compare semantic version numbers and validate version ranges
Devops ToolsIAM Policy Analyzer
Analyze AWS IAM policies for security issues, overly permissive actions, and privilege escalation risks
Aws IamIAM Policy Visualizer
Visualize AWS IAM policy permissions as a tree structure showing statements, actions by service, resources, and conditions
Aws IamJWT Security Auditor
Audit JWT tokens for algorithm vulnerabilities, missing claims, excessive expiration, and sensitive data exposure
SecurityCSP Inspector
Analyze Content Security Policy directives for security weaknesses and generate hardened CSP recommendations
SecurityEnvironment Security Analyzer
Detect secrets, passwords, API keys, and credentials in .env files with automatic masking and security scoring
SecurityJSON Schema Generator
Generate JSON Schema Draft-07 from any JSON example with type inference and format detection
Json ToolsDockerfile Analyzer
Analyze Dockerfiles for security issues, best-practice violations, and image optimization opportunities
DockerDockerfile Optimizer
Suggest layer optimizations, multi-stage build improvements, and size reductions for Dockerfiles
DockerDocker Compose Inspector
Analyze docker-compose.yml files for security issues, exposed ports, privileged containers, and misconfigurations
DockerDocker Compose Security Scanner
Deep security analysis of docker-compose files detecting privileged containers, namespace sharing, secrets exposure, and capability misuse
DockerTerraform Security Analyzer
Analyze Terraform HCL code for security misconfigurations, open ports, and unencrypted resources
TerraformTerraform Resource Explorer
List all resources, data sources, variables, outputs, and locals in your Terraform HCL code with cross-reference detection
TerraformTerraform Plan Risk Viewer
Classify Terraform plan changes by risk level, highlighting destructive operations on sensitive resources
TerraformTerraform Variable Inspector
Inspect and validate Terraform variable definitions, defaults, types, and usage patterns in HCL code
TerraformOpenAPI Diff Analyzer
Compare two OpenAPI specifications and detect breaking changes, added endpoints, and schema modifications
OpenapiOpenAPI Mock Data Generator
Generate realistic JSON mock payloads from OpenAPI schemas with reproducible seeded output
OpenapiOpenAPI Endpoint Explorer
Browse and explore all endpoints, parameters, and schemas in OpenAPI specifications
OpenapiK8s Manifest Inspector
Inspect Kubernetes YAML manifests for missing resource limits, probes, and image tag issues
KubernetesK8s Resource Visualizer
Visualize Kubernetes resource relationships as a graph from YAML manifests
KubernetesK8s Security Scanner
Scan Kubernetes YAML manifests for security vulnerabilities like privileged containers and secrets exposure
KubernetesK8s Resource Generator
Generate best-practice Kubernetes YAML manifests from configuration selections
KubernetesGitHub Actions Inspector
Detect security issues in GitHub Actions workflows: unpinned actions, exposed secrets, and dangerous triggers
Devops ToolsPackage.json Inspector
Analyze package.json for security issues, permissive version ranges, duplicate dependencies, and dangerous scripts
Devops ToolsComposer.json Inspector
Analyze composer.json for permissive version constraints, duplicate dependencies, dangerous scripts, and stability issues
Devops ToolsRobots.txt Analyzer
Analyze robots.txt for contradictory rules, dangerous blocks, and SEO issues with URL simulation
Technical SeoSitemap XML Inspector
Inspect sitemap XML for duplicates, invalid dates, non-absolute URLs, and protocol mixing issues
Technical SeoHTML SEO Inspector
Inspect HTML for title, meta description, canonical, headings, OpenGraph, Twitter Cards, JSON-LD, and images without alt
Technical SeoAPI Error Response Analyzer
Analyze API error responses for quality, traceability, exposed stack traces, and RFC 7807 compliance
Api ToolsSecurity Headers Analyzer
Analyze HTTP security headers for missing HSTS, CSP, X-Frame-Options, Permissions-Policy, and Referrer-Policy
SecurityCORS Policy Inspector
Analyze CORS headers for misconfigurations including wildcard origins, dangerous credential combinations, and overly permissive methods
SecurityNginx Security Inspector
Analyze Nginx configuration for security weaknesses including SSL/TLS, headers, rate limiting, and exposed paths
Web ServerNginx Redirect Analyzer
Analyze Nginx redirect chains, detect loops, validate rewrite rules and regex patterns
Web ServerApache .htaccess Inspector
Analyze .htaccess files for security issues, validate rewrite rules, and detect common misconfigurations
Web ServerRegex Explainer
Decompose regular expressions into fragments and explain each part in plain natural language
TextRegex Library
Browse a curated collection of common regex patterns for email, UUID, IP, URL, and more
TextJSON Explorer
Explore JSON as an interactive tree view with search, JSONPath copy, and virtual scrolling for large payloads
Json ToolsJSON Structure Analyzer
Analyze JSON structure metrics: count objects, arrays, keys, max depth, and detect issues like repeated keys and inconsistent types
Json ToolsCron Load Analyzer
Analyze cron expression load: calculate executions per hour/day/month, detect excessive frequency and simultaneous executions
Date TimeLog Pattern Analyzer
Detect patterns in log content: group similar lines, count errors, identify log levels, and extract IPs, status codes, and paths
TextSQL Query Analyzer
Detect SQL anti-patterns like SELECT without WHERE, cartesian products, and index-killing functions — with complexity scoring
SqlSQL Index Helper
Analyze SQL queries to suggest optimal indexes for WHERE, JOIN, ORDER BY, and GROUP BY — with MySQL, PostgreSQL, and MariaDB support
SqlCSV to SQL Generator (INSERT, UPDATE, DELETE)
Turn CSV rows into SQL INSERT, UPDATE or DELETE statements with NULL handling and escaping
SqlOAuth Scope Analyzer
Analyze OAuth 2.0 scopes for over-permission patterns, scope creep, and least-privilege violations across GitHub, Google, Azure AD, and Okta
SecurityCertificate Chain Inspector
Inspect PEM certificate chains for expiration, weak algorithms, key size issues, and chain completeness — with security scoring
SecurityXML Security Inspector
Detect XXE attacks, DTD injection, entity expansion bombs, and CDATA injection in XML documents
SecurityMarkdown SEO Analyzer
Analyze markdown content for SEO best practices: heading structure, links, image alt text, readability, keyword density, and frontmatter metadata
Technical SeoSAML Response Decoder
Decode Base64-encoded SAML 2.0 responses to inspect assertions, attributes, conditions, and signature details
SecurityBrowser Storage Inspector
Inspect localStorage and sessionStorage JSON dumps for security issues, sensitive data exposure, expired tokens, and storage anti-patterns
SecurityGitLab CI Inspector
Detect security issues in GitLab CI pipelines: exposed secrets, insecure images, dangerous allow_failure, and runner misconfigurations
Devops ToolsCase Converter
Convert text between camelCase, PascalCase, snake_case, kebab-case, UPPERCASE, and lowercase naming conventions
TextUser-Agent Parser & Generator
Parse user-agent strings to identify browser, OS, device and engine, or generate realistic ones
NetworkULID Generator
Generate ULIDs — sortable unique identifiers with embedded timestamps for distributed systems
TextNanoID Generator
Generate compact, URL-friendly unique IDs with configurable length and alphabet using unbiased randomness
TextFake Credit Card Generator
Generate valid-format test credit card numbers with Luhn validation for payment form testing
DataFake IBAN Generator
Generate structurally valid test IBANs with correct ISO 7064 Mod 97-10 check digits for banking integration testing
DataHTTP Status Code Analyzer
Analyze HTTP status codes and response patterns to detect misuse, non-standard codes, and API design issues
Api Tools