Developer Tools & Code Utilities

Check HTTP status codes, test redirect chains, and inspect response headers. Diagnose 1xx to 5xx error codes, RFC specifications, SEO impact, and fixes.

Test, debug, and optimize regular expressions in real time. Inspect regex pattern matches, capture groups, step-by-step token explanations, and replace syntax.

Calculate IPv4 subnet masks, CIDR network ranges, usable host addresses, and broadcast IPs. Features bitwise binary inspection, VLSM planning, and cloud VPC rules.

Calculate binary addition and subtraction with step-by-step carry bits, two's complement signed values, bitwise logic gates, and hex conversion in real time.

Parse cron expressions into clear human schedules. Inspect next execution timestamps across timezones, validate crontab syntax, and project upcoming run dates.

Convert GraphQL schema SDL and queries into TypeScript types, interfaces, enums, and resolvers. Instant in-browser codegen with zero config or server upload.

Convert Markdown to clean, production-ready HTML code in real time. Features GFM tables, syntax highlighting, XSS sanitization, Rich Text copy, and full document export.

Test and validate robots.txt syntax against RFC 9309. Check user-agent crawl permissions, debug disallow paths, and inspect sitemaps with instant browser testing.

Compare text, code, and files with our fast diff checker tool. Inspect side-by-side or inline character-level changes, ignore whitespace, and export unified diffs.

Convert HTML to Markdown with GitHub Flavored Markdown (GFM) tables, code blocks, and clean web clipping. Strip messy inline styles and export clean MD files.

Build valid rel=canonical tags and HTTP headers with our Canonical Tag Builder. Strip tracking parameters, normalize URLs, and fix SEO duplicate content issues.

Convert cURL to Fetch API syntax instantly. Parse HTTP headers, auth tokens, cookies, and JSON body payloads into modern async/await JavaScript code.

Validate XML sitemaps and sitemap index files instantly. Check 50k URL limits, W3C Datetime syntax, hreflang tags, media schemas, and Google Search Console errors.

Preview Google SERP desktop and mobile search snippets with accurate pixel width truncation, rich snippet schema badges, sitelinks, and live CTR scoring.

Generate multi-point CSS mesh gradients, animated backgrounds, and SVG color meshes. Customize control points, grain texture, and copy CSS or Tailwind code.

Build, validate, and batch generate Google Analytics GA4 campaign tracking links with our free UTM builder. Clean URLs, parse existing tags, and export QR codes.

Format, beautify, validate, and repair dirty JSON online instantly. Clean syntax errors, fix unquoted keys, minify, and inspect tree nodes with zero server uploads.

Encode and decode Base64 strings or binary files instantly. Supports URL-safe base64url, UTF-8 unicode, MIME line wrapping, Data URLs, and live error repair.

Real-time human-readable Crontab parser, recurring execution countdown calculator, visual cron schedule builder, and multi-timezone planner with zero server transmission.

Test, debug, and benchmark regular expressions in real-time with capture group extraction, replacement previews, regex flag toggles, and syntax explanations.

Safely encode and decode URLs and query parameters with RFC 3986, encodeURIComponent, encodeURI, and formUrlEncoded modes.

Convert text and code to named, decimal, and hexadecimal HTML entities to prevent XSS injection and preserve special characters.

Visual Unix file permissions calculator with numeric (755, 644) and symbolic (rwxr-xr-x) modes. Real-time two-way matrix sync, SetUID/SetGID/Sticky bits, and instant chmod command generator.

Convert JSON payloads into clean, strongly typed TypeScript interfaces or type aliases with automatic nested object inference and union detection.

Convert text and code variables between camelCase, PascalCase, snake_case, kebab-case, CONSTANT_CASE, and 15 naming conventions instantly.

Format, beautify, and minify SQL queries across PostgreSQL, MySQL, SQLite, ANSI SQL, BigQuery, Snowflake, and Transact-SQL with customizable indentation and uppercase keywords.

Convert raw cURL shell commands into idiomatic JavaScript Fetch API, TypeScript, Axios, and Node.js code with instant syntax highlighting and client-side privacy.

Generate cryptographically secure UUID v4, time-ordered UUID v7, NanoID, and bulk formatted IDs for databases and distributed systems.

Generate search-engine-optimized HTML meta tags, OpenGraph social cards, Twitter summary cards, and live Google / social media preview snippets directly in your browser.

Interactive keyboard event debugger. Inspect event.key, event.code, keyCode, which, modifier keys, and location values in real-time.

Generate compliant robots.txt files for Googlebot, Bingbot, and LLM crawlers. Test whether specific URL paths are allowed or blocked in real time using the official IETF RFC 9309 longest-match specificity standard.

Calculate IPv4/IPv6 CIDR prefixes, subnet masks, usable host IP ranges, network boundaries, and subnet splits with real-time binary bit visualizer.

Infer strict JSON Schema specifications (Draft-07, Draft-04, 2020-12) from JSON payloads. Complete with client-side validation, format inference, required field policies, and TypeScript interface exports.

Build complex crontab schedules visually with minutes, hours, days, months, and interval selectors, complete with human-readable explanations.

Convert raw cURL shell commands into idiomatic Python requests, async httpx, and aiohttp code with automated DevTools header sanitation and in-browser privacy.

High-performance bidirectional converter between YAML 1.2 and RFC 8259 JSON. Supports custom indentation, anchor expansion (& / *), and real-time schema validation.

Convert raw cURL shell commands into idiomatic, production-ready Go net/http code with automatic defer resp.Body.Close() and connection reuse.

Interactive visual builder for high-performance Nginx configurations. Generate reverse proxy rules, SSL/TLS modern hardening, HTTP/2 & HTTP/3, WebSocket upgrade headers, and compression directives with 100% client-side privacy.

Decode HTTP User-Agent strings to extract detailed browser rendering engines, operating system versions, device models, and architecture profiles in real time.

Validate docker-compose.yml files against the official Compose Spec. Detect syntax errors, host port overlaps, undeclared named volumes, broken networks, and container security vulnerabilities completely client-side.

Comprehensive directory of 1xx to 5xx response codes with official RFC 9110 specifications, caching directives, real-world troubleshooting guides, and instant client-side header simulation.

Evaluate Semantic Versioning 2.0.0 ranges, test version compliance against npm and Cargo caret/tilde rules, and calculate version bumps locally in real-time.

Convert SQL INSERT and CREATE TABLE dump statements into structured JSON arrays, grouped table objects, NDJSON, or strongly typed TypeScript interfaces in your browser.

Parse Google Protocol Buffers (proto2 & proto3) schemas into Draft-07 JSON Schema, synthetic mock JSON payloads, and TypeScript definitions client-side.

Convert raw cURL shell commands into high-performance, memory-safe Rust code with asynchronous reqwest, Tokio, Cargo.toml generation, and in-browser privacy.

High-performance bidirectional converter between W3C XML 1.0/2.0 and RFC 8259 JSON. Preserves attributes, namespaces, CDATA sections, and hierarchical tag relationships.

Query authoritative nameservers via DNS-over-HTTPS (DoH) to inspect A, AAAA, MX, TXT, CNAME, NS, SOA, CAA, and PTR propagation with raw DNS wire decoding.

Convert binary code (01001000 01101001) to plain ASCII/UTF-8 text and vice versa. Features custom bit grouping, delimiters, and byte encoding.

Convert GraphQL schema definition language (SDL) and queries into strongly typed TypeScript interfaces, types, and enums with zero runtime dependencies.

Generate Google-compliant XML sitemaps, frequency tags, priority attributes, multi-language hreflang alternates, and canonical links in client-side memory.

High-performance bidirectional converter between TOML v1.0 and RFC 8259 JSON. Optimized for Rust Cargo.toml, Python pyproject.toml, and DevOps configurations with zero-server privacy.

Construct valid Schema.org JSON-LD microdata for Articles, Organizations, SoftwareApplications, Products, FAQs, and Breadcrumbs for rich Google search snippets.

Search over 1,000 official IANA port assignments, protocol transport layers (TCP/UDP/SCTP), service definitions, and security vulnerability profiles.

Convert legacy Apache mod_rewrite directives, RewriteCond regex statements, 301/302 redirects, and directory access rules into idiomatic, high-performance Nginx server block directives completely client-side.

Compare, inspect, and identify structural differences between two JSON payloads with side-by-side highlighting, array order invariance, and semantic tree visualization.

Convert PNG, JPG, SVG, WebP, GIF, and ICO images into optimized Base64 Data URIs, HTML img tags, CSS background-image rules, and React JSX snippets with live preview, zoom, and instant copy.

Audit Dockerfiles for security pitfalls, unpinned base images, root user execution, inefficient layer caching, and multi-stage build opportunities with 100% client-side analysis.

Identify network card manufacturers and IEEE OUI hardware vendors from MAC addresses, normalize separator formats, and inspect unicast vs. multicast broadcast bits.

Convert between dotted-decimal subnet masks, CIDR prefixes (/0 to /32), inverse wildcard masks, binary bitmasks, and calculate total usable host address capacities.

Lookup public IPv4 and IPv6 addresses, ASN autonomous systems, ISP organizations, reverse DNS PTR, and geographic coordinates with client privacy.

Generate production-grade Linux systemd .service unit files. Configure process supervisors, Type=simple/forking/notify, unprivileged execution, auto-restart triggers, sandboxing flags, and environment files client-side.

Parse large comma-separated (CSV) and tab-separated (TSV) datasets into structured JSON arrays, key-value objects, and typed numeric schemas entirely client-side.

Convert nested or tabular JSON datasets into clean, flat CSV and TSV formats with custom delimiters, header extraction, quoting options, and instant downloads.

Validate Kubernetes Deployment, Pod, Service, Ingress, and ConfigMap manifests against official Kubernetes OpenAPI v1.28+ schemas. Catch missing apiVersion fields, container resource limits, and privilege escalation risks.

Visualize complex regex syntax as interactive railroad diagrams with branch tracing, character group inspection, and execution path breakdowns.

Simulate Cross-Origin Resource Sharing (CORS) preflight OPTIONS requests, validate Access-Control headers, debug credentials mode, and export server configs.

Generate secure, structured ~/.ssh/config files with host aliases, ProxyJump bastion hops, IdentityFile key bindings, port forwarding, and hardening rules.

Inspect and debug HTTP Archive (HAR) logs with interactive waterfall charts, timing breakdowns (DNS, SSL, TTFB), status code filtering, and zero-upload security.

Visually build, audit, and validate strict Content-Security-Policy (CSP) headers with nonce/hash support, script-src, frame-ancestors, and server export.

Convert OpenAPI 3.0 and Swagger 2.0 schemas (JSON or YAML) into clean, type-safe TypeScript interfaces and types instantly in your browser.

Instantly transpile raw CSS declarations, flexbox, grid, and inline styles into idiomatic Tailwind CSS utility classes with arbitrary value support.

Parse raw cURL commands into structured JSON, JavaScript Fetch, Axios, and Python requests locally in your browser with zero server transmission.

Inspect, breakdown, decode, edit, and rebuild complex URLs, query parameters, paths, and fragments interactively in your browser.

Convert standard Unix 5-field cron schedules into 6-field and 7-field Java Quartz and Spring Boot cron syntax with human explanations.

Transform raw HTML markup into clean, production-ready React JSX/TSX syntax with automatic class->className and inline style conversions.

Convert raw CSV files or pasted spreadsheets into optimized SQL CREATE TABLE and batch INSERT statements with automatic type inference.

Test and debug glob wildcard patterns (*, **, ?, {}, !) in real-time against candidate file paths for .gitignore, Webpack, Vite, and shell scripts.

Evaluate, test, and debug JSONPath queries ($, .., @, [?()], filters) against complex JSON structures in real-time with instant matching nodes extraction.

Inspect Unicode strings down to code points (U+XXXX), detect hidden zero-width spaces/bidi overrides, view UTF-8/UTF-16 byte sequences, and analyze grapheme clusters.

Convert raw cURL command lines into production-grade PHP code using native curl_init, Guzzle HTTP client, Laravel Http client, or WordPress remote API.

Minify SQL queries, strip inline and multiline comments, preserve database optimizer hints, and compact statements for production performance.

Format, indent, validate, and minify GraphQL queries, mutations, subscriptions, and SDL schemas with real-time nesting depth analysis.

Convert configuration files bidirectionally between TOML v1.0 and YAML 1.2 with real-time syntax validation, indentation control, and zero server upload.

Extract structured data from SQL INSERT statements, database dumps, and query results directly into CSV, TSV, or Markdown tables with custom delimiters and null handling.

Transform raw JSON payloads into production-ready Python Pydantic v2 BaseModel classes, TypedDict, or standard @dataclass schemas with type hints and alias support.

Convert JSON objects into idiomatic Go (Golang) struct definitions with automatic type inference, nested struct decoupling, and customizable struct tags.

Convert .env environment files into JSON objects, Docker Compose YAML, or Kubernetes ConfigMap manifests with secret masking, type coercion, and variable expansion support.

Generate 128-bit Crockford

Convert XML documents bidirectionally to YAML 1.2 with custom XML attribute prefixing (@_), CDATA handling, array normalization, and real-time syntax validation.

Transform raw JSON into idiomatic Rust structs with #[derive(Serialize, Deserialize)], Option<T> for nullable fields, serde rename attributes, and sub-struct extraction.

Generate idiomatic Kotlin data classes from arbitrary JSON with full null-safety (Type?), @SerialName / @JsonProperty annotations, and nested class decoupling.

Convert academic BibTeX (.bib) files into structured CSL-JSON, RIS, or formatted Markdown bibliographies with author extraction, DOI parsing, and field normalization.

Translate standard 5-part Linux Crontab expressions into modern systemd .timer units with precise OnCalendar calendar events and accompanying .service unit definitions.

Instantly convert JSON into clean, type-safe Swift Codable structs. Supports nested models, custom CodingKeys, property mutability, optional handling, and Sendable protocol.

Generate idiomatic Java Records, Lombok @Data classes, or standard Java POJOs with Jackson @JsonProperty annotations and type inference from JSON.

Convert JSON documents into high-performance C# records, classes, and structs with System.Text.Json or Newtonsoft.Json attributes, nullable reference types, and file-scoped namespaces.

Analyze raw Nginx and Apache access logs locally with status code distributions, top requested URLs, unique client IPs, bandwidth metrics, and custom regex pattern matching.

Convert GraphQL schema definitions (SDL) into JSON Schema (Draft 2020-12 / Draft-07) and OpenAPI 3.0 / 3.1 component schemas with strict nullability, enum mapping, and reference resolution.

Infer and generate TypeScript Zod schemas, type definitions, and nested validation rules from raw JSON payloads.

Translate SQL CREATE TABLE DDL statements into clean Prisma ORM schema models, relations, field attributes, and enums.

Convert command-line docker run flags, volume mounts, port bindings, and environment variables into clean docker-compose.yml services.

Generate production-ready Nginx upstream blocks with round-robin, least_conn, ip_hash, keepalive, and health check parameters.

Convert standard crontab schedules into complete Kubernetes CronJob manifests with restartPolicy, concurrencyPolicy, and resource limits.

Generate GraphQL schema definition language (SDL) object types, input types, and query schemas from JSON objects.

Construct PromQL alerting rules, recording rules, alert manager thresholds, labels, and runbook annotations visually.

Generate strongly-typed TypeScript resolver interfaces, query/mutation arguments, and parent context types from GraphQL SDL.

Translate command-line cURL requests into idiomatic C# code using .NET HttpClient, RestSharp, or Flurl.Http.

Convert cURL commands into production-grade Java HTTP requests with native java.net.http.HttpClient, OkHttp3, or Spring WebClient.

Infer XML Schema Definition (XSD) type structures, complex elements, attributes, and minOccurs/maxOccurs rules from sample JSON.

Generate comprehensive .gitignore templates by combining rules for operating systems, IDEs, and 50+ programming languages.

Convert TypeScript interfaces, type aliases, enums, and nested types into runtime Zod schema validation rules with type inference.

Transform TypeScript interfaces, types, and JSDoc comments into standard JSON Schema definitions for API contracts and form builders.

Create production-ready Kubernetes Deployment manifests with pod replicas, resource limits, health probes, and rolling update strategies.

Generate Kubernetes Ingress v1 specs with host rules, path routing, TLS cert-manager secrets, rewrite annotations, and backend services.

Construct Traefik v3 HTTP/TCP routers, middlewares (stripPrefix, basicAuth, rateLimit), services, and Let's Encrypt TLS in YAML and TOML.

Generate modern Caddy 2 server configurations with reverse_proxy, automatic HTTPS, compression, security headers, and basicauth.

Analyze text, CSS, and JS payloads with browser-native CompressionStream, estimating Brotli/Gzip ratios and mobile 3G/4G load times.

Parse Protocol Buffers (proto2 & proto3) message definitions, enums, and nested fields into clean TypeScript interfaces.

Convert OpenAPI 3.0 and Swagger 2.0 JSON/YAML specifications into clean GitHub Flavored Markdown API reference documentation.

Translate GraphQL schema definition language (SDL) object types, enums, and directives into clean Prisma ORM models and relations.

Convert SQL CREATE TABLE DDL statements into TypeScript TypeORM entity classes with @Column, @PrimaryGeneratedColumn, and relations.

Translate SQL table schemas, data types, constraints, and nullable columns into strongly-typed Zod object schemas.

Convert docker-compose.yml services, environment variables, ports, and volume mounts into Kubernetes Deployment and Service YAML.

Flatten nested JSON payloads into uppercase SNAKE_CASE .env configurations with customizable delimiters and prefix options.

Convert SQL CREATE TABLE statements into strongly-typed Drizzle ORM schemas with pgTable, mysqlTable, and sqliteTable definitions.

Transform JSON data into lightweight, tree-shakable Valibot schema definitions with v.object, v.string, v.number, and array validators.

Convert JSON structures into high-performance TypeBox Type.Object definitions for Fastify, Ajv, and TypeScript runtime validation.

Convert Prisma schema definitions into clean, production-ready SQL DDL migration scripts for PostgreSQL, MySQL, and SQLite.

Extract Prisma schema models, enums, optional fields, and relations into standalone TypeScript interfaces without Prisma Client runtime.

Generate clean, type-safe Axios HTTP client functions and parameter interfaces from OpenAPI 3.0 and Swagger JSON/YAML specs.

Generate zero-dependency native fetch TypeScript API methods with query string serialization, headers, and response types.

Translate Drizzle ORM pgTable, mysqlTable, and sqliteTable definitions back into executable SQL CREATE TABLE migration scripts.

Build production GitHub Actions workflow YAML pipelines for Node.js, Go, Python, Docker builds, unit tests, and automated releases.

Generate /etc/logrotate.d/ configuration files with daily/weekly rotation, gzip compression, dateext, size limits, and postrotate scripts.

Generate Ubuntu 20.04/22.04/24.04 netplan YAML configs for static IPs, DHCP, DNS nameservers, gateway routes, bridges, and bonds.

Convert SQL CREATE TABLE statements into strongly-typed Python SQLAlchemy 2.0 DeclarativeBase models with Mapped annotations.

Translate SQL CREATE TABLE schemas into Golang struct definitions with GORM tags, JSON tags, and proper Go type mappings.

Convert SQL CREATE TABLE DDL into Sequelize TypeScript models, DataTypes definitions, attributes interfaces, and Model.init declarations.

Generate Elixir Ecto schemas, embedded_schemas, and cast/validate changesets directly from JSON payload samples.

Transform JSON payloads into type-safe Scala case classes with optional Circe, Play JSON, or zio-json codecs and encoders.

Convert JSON data into modern PHP 8.2+ readonly class Data Transfer Objects (DTOs) with constructor promotion and fromArray deserializers.

Convert TypeScript interfaces, type aliases, and enums into standard GraphQL Schema Definition Language (SDL) types, inputs, and scalars.

Translate TypeScript interfaces and type definitions into Protobuf 3 syntax messages, fields with incremental tags, and enums.

Build production GitLab CI/CD pipelines with multi-stage workflows (build, test, deploy, docker), cache policies, and artifact rules.

Generate Supervisord program configuration blocks with auto-restart, process counts, log redirection, environment variables, and user privileges.

Construct production HAProxy 2.x/3.x configs with frontend SSL termination, round-robin backends, health checks, ACLs, and rate limiting.

Generate standard Kubernetes Helm v3 Chart.yaml, values.yaml, and deployment templates with service, ingress, and resource limits.

Create hardened, lightweight multi-stage Dockerfiles for Node.js, Golang, Python, Rust, and Java with non-root security and cache optimization.

Convert SQL CREATE TABLE DDL schemas into strongly-typed Kysely TypeScript database interfaces, Generated columns, and ColumnType definitions.

Convert SQL CREATE TABLE definitions into MikroORM entity classes with @Entity, @PrimaryKey, @Property, @Index, and relationship decorators.

Infer and generate MongoDB Mongoose schemas, TypeScript document interfaces, nested subdocuments, timestamps, and model exports from JSON.

Transform JSON samples into type-safe Yup object validation schemas with yup.string(), yup.number(), yup.array(), and required rules.

Convert sample JSON data structures into Joi validation schemas with Joi.object(), Joi.string(), Joi.number(), and Joi.array() constraints.

Convert JSON objects into standard Apache Avro schema definitions with record types, primitive fields, null union types, and doc annotations.

Convert GraphQL SDL types, queries, and inputs into runtime Zod validation schemas (z.object, z.string, z.array) with nullability handling.

Transform GraphQL Schema Definition Language (SDL) types, inputs, and enums directly into clean, zero-dependency TypeScript interfaces.

Generate production-ready Kubernetes ConfigMap and Secret (Opaque, TLS, docker-registry) YAML manifests with base64 encoding and immutability.

Build autoscaling HPA v2 YAML manifests with CPU and Memory utilization targets, custom metrics, and scale-up/scale-down stabilization policies.

Generate tuned redis.conf configuration files with maxmemory policies, RDB/AOF persistence, network binding, and security authentication.

Calculate and generate optimized postgresql.conf settings based on hardware specs (shared_buffers, work_mem, effective_cache_size, max_connections).

Build systemd timer and companion service unit files with OnCalendar scheduling, OnBootSec intervals, Persistent execution, and random delays.

Generate modern, robust tsconfig.json configurations for Next.js, Node.js, Vite, or Library setups with strict mode, paths, and module resolution.

Convert sample JSON documents into ClickHouse SQL DDL with MergeTree engine, UInt/Int/Float/String/DateTime types, and Array/Nested column mappings.

Infer and convert JSON objects into Google Cloud BigQuery Table Schema JSON with RECORD mode, STRING, INTEGER, NUMERIC, and TIMESTAMP fields.

Translate JSON structures into Snowflake SQL CREATE TABLE statements with VARIANT, VARCHAR, NUMBER, BOOLEAN, and TIMESTAMP_NTZ data types.

Convert JSON and YAML payloads into Terraform HCL variable type constraints (type = object({...})), default values, and terraform.tfvars definitions.

Convert OpenAPI 3.0 REST endpoints, request bodies, and JSON schemas into GraphQL SDL types, queries, mutations, and input definitions.

Convert SQL CREATE TABLE statements into @sinclair/typebox runtime validation schemas using Type.Object, Type.String, Type.Number, and Type.Optional.

Transform cURL commands into idiomatic, asynchronous Rust HTTP requests using reqwest, serde_json, custom headers, and tokio runtime.

Convert cURL HTTP requests into clean, native Ruby code using Net::HTTP, URI, Faraday, and JSON request/response handling.

Create fine-grained Kubernetes NetworkPolicy YAML manifests with Ingress/Egress CIDR blocks, podSelector labels, namespaceSelector, and port restrictions.

Design Kubernetes RBAC Role, ClusterRole, RoleBinding, and ClusterRoleBinding resources with API groups, resource verbs, and Subject service accounts.

Build production-grade Kubernetes StatefulSet manifests, companion Headless Services, volumeClaimTemplates, and secure container security contexts with zero server dependencies.

Test and simulate Nginx location block matching order (= exact, ^~ preferential prefix, ~ regex, ~* case-insensitive, / prefix) with request URIs.

Generate Cloudflare Pages _headers and _redirects configuration files with HSTS, CSP, X-Frame-Options, caching rules, and 301/302 URL redirects.

Build vercel.json configuration files with custom routing rewrites, redirects, headers, cleanUrls, trailingSlash, and cron job declarations.

Generate modern ESLint 9+ flat configuration files (eslint.config.mjs / .js) with TypeScript, React, Next.js, Vue, Prettier, and custom plugin rules.

Test semantic versioning (SemVer) ranges (caret ^, tilde ~, hyphens, x-ranges, pre-releases) and evaluate package version satisfaction in real-time.