100% In-Browser & Private

Developer & Web Tools

Standards-compliant JSON formatting, encoding, decoding, and cryptographic hashing tools.

JSON Formatter & Validator

Beautify, validate, and minify JSON strings with pinpoint syntax error reporting and clear line/column indications.

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Base64 Encoder & Decoder

Encode and decode Base64 data with comprehensive UTF-8 multibyte character support and invalid format validation.

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URL Encoder & Decoder

Encode and decode URI components and query strings safely with standards-compliant RFC 3986 percent encoding.

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Hash Generator

Generate cryptographic hashes including SHA-256, SHA-1, SHA-384, SHA-512, and MD5 client-side in real time.

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HTML Entity Encoder & Decoder

Encode characters to named or numeric HTML entities for web safety, or decode existing entity references.

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CSS Formatter & Minifier

Beautify messy CSS stylesheets with consistent indentation or minify CSS rules to reduce transfer payload.

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JavaScript Formatter & Minifier

Format, indent, and beautify JavaScript code or compress whitespace and comments safely in your browser.

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XML Formatter & Validator

Format, indent, and validate XML documents, sitemaps, RSS feeds, or SVG markup using standard DOMParser.

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Regular Expression Tester & Matcher

Test JavaScript regular expressions with real-time match highlighting, group extraction, and flag toggling.

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JSON Web Token (JWT) Decoder

Decode JSON Web Tokens (JWT) to inspect header algorithms, payload claims, and expiration timestamps safely.

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Cron Expression Helper & Explainer

Build, understand, and translate 5-field cron schedule expressions into plain human-readable descriptions.

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Robots.txt Generator & Directives Builder

Create SEO-compliant robots.txt directives for Googlebot, Bingbot, and AI crawlers with sitemap integration.

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SQL Query Formatter & Beautifier

Format, indent, and uppercase SQL keywords in MySQL, PostgreSQL, SQLite, and MariaDB queries.

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SQL Query Syntax Linter & Safety Validator

Lint SQL syntax, check quote/parentheses balance, and detect dangerous unconstrained UPDATE or DELETE statements.

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HTTP Status Codes Reference & Debugging Guide

Comprehensive RFC 9110 HTTP status code reference with explanations, caching rules, and troubleshooting tips.

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MIME Type & File Extension Directory

Lookup standard MIME Content-Type headers by file extension or search by Media descriptor for APIs and servers.

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Modern HTML5 Starter Boilerplate Generator

Generate production-ready HTML5 starter boilerplate templates configured with modern viewport tags and metadata.

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SEO & Social Graph Meta Tag Generator

Generate SEO meta tags, OpenGraph (Facebook/LinkedIn), and Twitter Card markup with live visual search previews.

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URL Query String Parameter Parser & Builder

Deconstruct complex URLs into query parameters, edit key-value pairs, and re-encode clean URLs automatically.

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Website HTTP Response Headers & Security Inspector

Audit HTTP security headers (HSTS, CSP, X-Frame-Options, Permissions-Policy) with private SSRF protections.

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YAML Formatter, Validator & JSON Converter

Format YAML snippets, validate syntax indentation, and convert YAML directly to clean JSON client-side.

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TOML Formatter & Config Validator

Lint and reformat Tom's Obvious Minimal Language (TOML) configuration files and verify key-value structures.

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Markdown Table Generator (GFM Interactive Grid)

Visually design, edit, and align GitHub Flavored Markdown (GFM) tables with live interactive rows and columns.

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Open Graph Preview & Social Meta Tag Generator

Preview how URLs look when shared on X, Facebook, LinkedIn, or Discord and generate complete og:tag and Twitter markup.

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HTML Accessibility (a11y) Checker (WCAG 2.1 Audit)

Audit HTML snippets for missing alt tags, empty buttons, missing form labels, and ARIA violations in your browser.

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Sitemap XML Generator (Google Search Console Ready)

Generate valid, standards-compliant sitemap.xml files with configurable priority, changefreq, and lastmod tags.

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HTTP Request Header Builder (cURL & Fetch Exporter)

Construct REST API headers (Authorization, Accept, Content-Type) and export cURL and JavaScript fetch snippets.

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Web Color Contrast Checker (WCAG 2.1 AA & AAA Conformance)

Test text and background color combinations against W3C WCAG accessibility standards for normal text, large text, and UI components.

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GraphQL Query Formatter & Minifier

Prettify, format, indent, and minify GraphQL queries, mutations, subscriptions, and fragments with syntax validation.

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GraphQL Schema (SDL) Explorer & Inspector

Inspect and parse GraphQL Schema Definition Language (SDL) schemas, browsing types, queries, and mutations.

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Dockerfile Formatter & Linter

Format Dockerfile instructions to uppercase syntax and lint for container security and optimization anti-patterns.

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.gitignore File Generator

Compose clean, production-ready .gitignore files by selecting languages, frameworks, operating systems, and IDEs.

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Git Command Reference & Workflow Guide

Comprehensive searchable cheat sheet for Git workflows including undoing commits, stashing, rebasing, and reflog.

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Environment Variable (.env) File Generator

Build, validate, format, and download .env configuration files with proper string escaping and syntax checks.

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URL Query String Builder & Parameter Composer

Visually compose, encode, and format URL query parameters with live preview and encoding safeguards.

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HTTP Response Security Header Analyzer

Audit raw HTTP response headers for essential security policies (HSTS, CSP, X-Frame-Options) and calculate a grade.

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Web App Manifest (PWA) Generator

Generate production-ready web application manifest files (manifest.webmanifest) for installable Progressive Web Apps.

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Content Security Policy (CSP) Header Builder

Construct robust Content Security Policy rules to protect web apps from XSS, code injection, and clickjacking.

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OpenAPI Specification Viewer

Paste OpenAPI or Swagger JSON specifications to parse endpoints, HTTP methods, parameters, and documentation models.

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OpenAPI Mock Response Generator

Generate realistic dummy JSON responses directly from JSON Schema or OpenAPI data models.

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API Payload Comparison Tool

Compare two JSON API responses side-by-side to highlight added keys, deleted fields, and value modifications.

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JSON Schema Validator

Validate JSON payloads against JSON Schema definitions to check required properties and data types.

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Semantic Version (SemVer) Comparator

Compare two Semantic Version strings (e.g. 2.1.0-beta.1 vs 2.1.0) and identify breaking major, feature, or patch releases.

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Changelog Generator (Keep a Changelog)

Convert git commit logs into standard Keep a Changelog releases sorted by Added, Fixed, and Performance.

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Git Branch Naming Validator

Audit git branch names against refspecs rules, forbidden characters, and team conventions (e.g. feature/PROJ-101-title).

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Git Commit Message Validator

Check commit messages against Conventional Commits specification, subject line lengths, and imperative mood.

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Test Case Generator from Requirements

Transform product requirements and user stories into structured Given-When-Then BDD test specifications.

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Log File Pattern Analyzer

Analyze server and app logs to detect ERROR and WARN frequencies, HTTP status code distributions, and anomalies.

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DNS Record Reference & Formatter

Format valid DNS records for A, AAAA, CNAME, MX, TXT, and CAA with copyable BIND zone syntax.

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DNS Zone File Syntax Checker

Check zone file syntax, origin directives, default TTL values, and missing trailing dots on FQDNs.

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Email Authentication Record Builder (SPF / DMARC)

Generate RFC-compliant SPF and DMARC TXT records to protect domain email delivery from spoofing and phishing.

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DKIM Record Formatter & Inspector

Format public DKIM keys into valid 255-character chunked TXT records for DNS providers like Cloudflare, Route53, and BIND.

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Certificate Expiry Date Calculator

Calculate remaining certificate lifespan, renewal countdown deadlines, and recommended Let's Encrypt renewal schedules.

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TLS Configuration Reference (Mozilla SSL)

Generate secure TLS v1.2/1.3 configurations, cipher suites, and forward secrecy directives for Nginx and Apache.

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HTTP Cookie Attribute Inspector

Inspect HTTP Set-Cookie headers for Secure, HttpOnly, SameSite, and domain scoping best practices.

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Security Headers Policy Builder

Generate HSTS, X-Content-Type-Options, X-Frame-Options, and Referrer-Policy response headers.

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CORS Configuration Explainer

Configure Access-Control-Allow-Origin, allowed methods, credentials, and preflight max-age headers.

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Web Redirect Chain Analyzer for Pasted Data

Analyze pasted redirect chains from cURL or DevTools to identify redirect loops, protocol hops, and SEO loss.

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DPDP Act Compliance Readiness Self-Assessment

Self-assessment readiness evaluation engine for India DPDP Act 2023. Evaluates Data Fiduciary notices, consent architecture, Grievance Officer SLAs, and generates an informational readiness summary.

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Cyber Resilience Act (CRA) Conformity Self-Assessment

Cybersecurity readiness self-assessment for digital products under EU Cyber Resilience Act (Regulation (EU) 2024/2847). Evaluates Annex I security-by-design, RFC 9116 security.txt, and SBOM transparency.

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DPDP & Cyber Resilience Act Compliance Verifier

Interactive audit engine verifying websites against India DPDP Act 2023 and EU Cyber Resilience Act (CRA 2024/2847). Evaluates RFC 9116 security.txt, Data Fiduciary notice, Grievance Officer, and security-by-design.

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