Free, fast, and secure online tools for everyone. Word counters, image tools, calculators, JSON formatters, and QR generators with zero installation and 100% browser privacy.
Instantly display your public IPv4 and IPv6 addresses, ISP, location, and client connection details.
Lookup any IP address or domain to discover country, city, ISP, ASN, timezone, and geographic coordinates.
Test if your real public or local IP address leaks through browser WebRTC STUN requests while on VPN.
Query authoritative A, AAAA, CNAME, MX, TXT, NS, SOA, and CAA records for any domain name via DNS over HTTPS.
Check domain registration dates, expiration date, registrar information, status codes, and name servers.
Verify if DNS record changes have propagated globally across multiple international DNS resolvers.
Measure round-trip ping latency, network response time, jitter, and packet reliability to target hosts.
Test if critical server ports (80 HTTP, 443 HTTPS, 22 SSH, 21 FTP, 3306 MySQL) are reachable or firewall blocked.
Test broadband download speed, upload bandwidth, latency ping, and network jitter in real time.
Calculate subnet mask, broadcast IP, usable host IP range, total hosts, wildcard mask, and CIDR prefix notation.
Inspect server response headers, HTTP status codes, server signature, caching directives, and cookies.
Audit website HTTP security headers (HSTS, CSP, X-Frame-Options, Permissions-Policy) with a letter grade score.
Inspect SSL/TLS certificate validity, expiration date countdown, issuing certificate authority, and SAN domains.
Generate compliant robots.txt crawler directives with custom allow/disallow paths, bot rules, and sitemap URL.
Build search engine compliant sitemap.xml files from URL lists with custom priorities, frequencies, and lastmod dates.
Generate complete HTML meta tags for Title, Description, Keywords, Robots, and Author with live Google search preview.
Create Open Graph meta tags (og:title, og:image, og:description) with interactive Facebook and LinkedIn card previews.
Create valid JSON-LD structured data markup for Article, Organization, LocalBusiness, FAQ, and Product schemas.
Verify if a website is online or down (Up or Down), measure Time to First Byte (TTFB), and response latency.
Accurate real-time word counter with full Bangla Unicode support, reading time, and speaking time estimates.
Calculate percentage of a number, percentage increase or decrease, and shop discounts in seconds.
Format, validate, prettify, and minify your JSON data with clear syntax error detection and tree navigation.
Create high-resolution QR codes for websites, WiFi networks, phone numbers, and plain text. Download as PNG or SVG.
Compress JPG, PNG, and WebP images directly in your browser. Reduce file size up to 80% without losing visual clarity.
Combine multiple JPG, PNG, and WebP images into a single professional PDF document with custom margins and page sizes.
Format, indent, and prettify messy HTML, CSS, and JavaScript code instantly in your browser.
Format, indent, and uppercase keywords in complex SQL queries for maximum readability.
Seamlessly convert between YAML and JSON configuration formats with syntax validation.
Minify and compress CSS stylesheets by removing comments and whitespace to accelerate web performance.
Compress JavaScript code by removing comments, blank lines, and unnecessary spaces.
Encode and decode UTF-8 text or convert image files to Base64 data URIs securely in your browser.
Encode and decode URLs, query strings, and URI components with full Unicode support.
Decode, inspect, and verify JSON Web Token headers, payloads, and expiration times safely.
Test and debug regular expressions in real-time with match highlighting and capture group extraction.
Visually create, customize, and understand cron job schedule expressions with plain-English explanations.
Convert cURL terminal commands into modern JavaScript fetch, Axios, PHP cURL, and Python requests code.
Generate cryptographically random UUID v4 identifiers individually or in bulk with custom formatting.
Generate mock JSON test data with realistic user profiles, emails, addresses, and timestamps for API testing.
Generate SHA-256, SHA-512, SHA-1, MD5, and Bcrypt cryptographic hashes directly in your browser.
Compare two snippets of code or text to highlight added, removed, and modified lines side-by-side.
Convert raw JSON payloads into clean, idiomatic Kotlin data classes with null-safety and serialization annotations.
Convert JSON objects into Flutter Dart model classes with fromJson and toJson serialization methods.
Generate type-safe TypeScript interfaces and types from JSON objects and arrays in real time.
Construct, test, and send mock HTTP REST requests (GET, POST, PUT, DELETE) with headers and JSON payloads directly in-browser.
Generate production-ready Apache .htaccess rules for 301 redirects, HTTPS enforcement, Gzip compression, and security headers.
Generate optimized Nginx server blocks for PHP-FPM, reverse proxies, static SPAs, SSL certificates, and gzip compression.
Generate customized, curated .gitignore templates for Laravel, Node.js, Python, Flutter, Go, and IDE environments.
Bi-directionally convert XML documents to structured JSON and JSON data into valid, properly indented XML tags.
Convert raw CSV or TSV tabular data into batch SQL INSERT statements with custom table names and escaped values.
Preview, inspect, scale, and visualize raw SVG path (d attribute) commands with interactive canvas rendering.
Find the right utility for text analysis, calculation, images, or development.
Analyze, count words, change case, and diff text with Unicode support.
Perform accurate calculations for percentages, age, BMI, and dates.
Formatters, regex testers, minifiers, and essential code utilities.
Pomodoro focus timer, precision stopwatch, world clocks, and epoch converter.
Compress, resize, convert image formats, and edit SVGs in your browser.
Merge, split, compress, convert, and watermark PDFs without cloud uploads.
Convert units of length, weight, data storage, speed, and temperature.
Calculate currency, loan EMI, compound interest, margins, and VAT/tax.
Generate strong passwords, hashes (MD5/SHA), and encrypt sensitive data.
Lookup IP, DNS records, WHOIS data, user-agent specs, and network ping.
Generate meta tags, preview Open Graph cards, slugs, and keyword density.
Pick colors, verify WCAG contrast, convert color spaces, and make gradients.
Generate app icon sets, convert vector assets, and test deep links.
Format SQL queries, convert CSV to JSON, and generate mock data.
Trim audio tracks, make GIFs from video, and compute aspect ratios.
Extract or build ZIP files, compute checksums, and view base64 files.
Calculate GPA/CGPA, generate bibliography citations, and convert Roman numerals.
Create quick invoices, generate barcodes, format SKUs, and apply discounts.
Generate custom QR codes, RFC UUIDs, and true random values.
Count LLM tokens (GPT/Claude), format AI prompts, and check lengths.
Reliable, instant tools optimized for everyday productivity.
Instantly display your public IPv4 and IPv6 addresses, ISP, location, and client connection details.
Lookup any IP address or domain to discover country, city, ISP, ASN, timezone, and geographic coordinates.
Parse and decode any browser User-Agent string to detect browser, version, operating system, and device type.
Test if your real public or local IP address leaks through browser WebRTC STUN requests while on VPN.
Query authoritative A, AAAA, CNAME, MX, TXT, NS, SOA, and CAA records for any domain name via DNS over HTTPS.
Check domain registration dates, expiration date, registrar information, status codes, and name servers.
Verify if DNS record changes have propagated globally across multiple international DNS resolvers.
Inspect email authentication DNS records to prevent email spoofing and ensure high inbox delivery rates.
Measure round-trip ping latency, network response time, jitter, and packet reliability to target hosts.
Test if critical server ports (80 HTTP, 443 HTTPS, 22 SSH, 21 FTP, 3306 MySQL) are reachable or firewall blocked.
Test broadband download speed, upload bandwidth, latency ping, and network jitter in real time.
Calculate subnet mask, broadcast IP, usable host IP range, total hosts, wildcard mask, and CIDR prefix notation.
Inspect server response headers, HTTP status codes, server signature, caching directives, and cookies.
Searchable reference and tester for all 1xx, 2xx, 3xx, 4xx, and 5xx HTTP response status codes with RFC definitions.
Audit website HTTP security headers (HSTS, CSP, X-Frame-Options, Permissions-Policy) with a letter grade score.
Trace complete URL redirect chains (301, 302, 307, 308), count intermediate hops, and detect infinite loops.
Inspect SSL/TLS certificate validity, expiration date countdown, issuing certificate authority, and SAN domains.
Generate compliant robots.txt crawler directives with custom allow/disallow paths, bot rules, and sitemap URL.
Build search engine compliant sitemap.xml files from URL lists with custom priorities, frequencies, and lastmod dates.
Generate complete HTML meta tags for Title, Description, Keywords, Robots, and Author with live Google search preview.
Create Open Graph meta tags (og:title, og:image, og:description) with interactive Facebook and LinkedIn card previews.
Generate Twitter Card meta tags (Summary and Large Image) with real-time X feed preview card simulation.
Create valid JSON-LD structured data markup for Article, Organization, LocalBusiness, FAQ, and Product schemas.
Deconstruct complex URLs into protocol, host, port, path, and extract/edit query string key-value pairs.
Check if a web server has Gzip, Brotli, or Deflate compression enabled and calculate bandwidth savings percentage.
Verify if a website is online or down (Up or Down), measure Time to First Byte (TTFB), and response latency.
Accurate real-time word counter with full Bangla Unicode support, reading time, and speaking time estimates.
Easily transform text between UPPERCASE, lowercase, Title Case, camelCase, snake_case, and kebab-case.
Calculate percentage of a number, percentage increase or decrease, and shop discounts in seconds.
Format, validate, prettify, and minify your JSON data with clear syntax error detection and tree navigation.
Create high-resolution QR codes for websites, WiFi networks, phone numbers, and plain text. Download as PNG or SVG.
Compress JPG, PNG, and WebP images directly in your browser. Reduce file size up to 80% without losing visual clarity.
Combine multiple JPG, PNG, and WebP images into a single professional PDF document with custom margins and page sizes.
Format, indent, and prettify messy HTML, CSS, and JavaScript code instantly in your browser.
Format, indent, and uppercase keywords in complex SQL queries for maximum readability.
Seamlessly convert between YAML and JSON configuration formats with syntax validation.
Minify and compress CSS stylesheets by removing comments and whitespace to accelerate web performance.
Compress JavaScript code by removing comments, blank lines, and unnecessary spaces.
Encode and decode UTF-8 text or convert image files to Base64 data URIs securely in your browser.
Encode and decode URLs, query strings, and URI components with full Unicode support.
Decode, inspect, and verify JSON Web Token headers, payloads, and expiration times safely.
Test and debug regular expressions in real-time with match highlighting and capture group extraction.
Visually create, customize, and understand cron job schedule expressions with plain-English explanations.
Convert cURL terminal commands into modern JavaScript fetch, Axios, PHP cURL, and Python requests code.
Generate cryptographically random UUID v4 identifiers individually or in bulk with custom formatting.
Generate mock JSON test data with realistic user profiles, emails, addresses, and timestamps for API testing.
Generate SHA-256, SHA-512, SHA-1, MD5, and Bcrypt cryptographic hashes directly in your browser.
Compare two snippets of code or text to highlight added, removed, and modified lines side-by-side.
Convert raw JSON payloads into clean, idiomatic Kotlin data classes with null-safety and serialization annotations.
Convert JSON objects into Flutter Dart model classes with fromJson and toJson serialization methods.
Generate type-safe TypeScript interfaces and types from JSON objects and arrays in real time.
Construct, test, and send mock HTTP REST requests (GET, POST, PUT, DELETE) with headers and JSON payloads directly in-browser.
Generate production-ready Apache .htaccess rules for 301 redirects, HTTPS enforcement, Gzip compression, and security headers.
Generate optimized Nginx server blocks for PHP-FPM, reverse proxies, static SPAs, SSL certificates, and gzip compression.
Generate customized, curated .gitignore templates for Laravel, Node.js, Python, Flutter, Go, and IDE environments.
Bi-directionally convert XML documents to structured JSON and JSON data into valid, properly indented XML tags.
Convert raw CSV or TSV tabular data into batch SQL INSERT statements with custom table names and escaped values.
Preview, inspect, scale, and visualize raw SVG path (d attribute) commands with interactive canvas rendering.
Clean, browser-based architecture engineered for absolute privacy and zero friction.
No signups, credit cards, or passwords. Click on any tool and start working immediately without delays.
Calculations and image modifications run strictly locally in your browser memory using modern web APIs.
Because files are not uploaded to a backend server, your confidential data remains completely safe on your device.