All Free Tools

• Htaccess & Nginx Converter Convert Apache .htaccess rewrite rules to Nginx syntax and back.
• IIS web.config Converter Convert Apache/Nginx rewrite rules to IIS web.config XML and back.
• robots.txt / llms.txt / security.txt Generator Build crawler access rules, AI content indexes, and security contact files.
• Cron Expression Builder Build cron schedules visually with human-readable descriptions and next run times.
• .htpasswd Password Generator Generate Apache .htpasswd entries using bcrypt, MD5-APR, SHA1, or plaintext — single users, bulk lists, and ready-to-paste .htaccess snippets.
• .htaccess Tester Test .htaccess rewrite rules against a URL without touching your live server.

• SSL Checker, CSR Generator & Decoder Check a live certificate, generate a CSR and private key, or decode an existing one.
• SPF, DKIM & DMARC Checker + Generator Check your domain email authentication DNS records and build correct ones.
• Email Diagnostic Tools Analyze email headers, inspect sender authentication and routing, test mail ports and SMTP capabilities, check DNS email security records, and investigate IP blacklist status.
• SSL/TLS Certificate Chain Checker Verify your full certificate chain — leaf, intermediates, and root — and detect missing intermediates.

• SEO Meta & Schema Checker + Generator Audit title, description, Open Graph, JSON-LD schema — then generate correct tags.
• Free SEO Checker SEO report to uncover technical issues and find actionable steps to improve your Google rankings.
• SERP Snippet Preview See exactly how your title and meta description will render in Google search results.
• AI Crawler Access Checker Know What AI Sees Before You Wonder Why You're Invisible .
• XML Sitemap Generator & Validator Build a Correctly-Formatted Sitemap in Seconds .

• Image Converter, Compressor & Resizer Convert to WebP/AVIF, compress, resize, and make backgrounds transparent.
• Favicon Generator Generate all standard favicon sizes and a real multi-resolution favicon.ico from any image.
• Color Picker & Converter Pick colors visually and convert between HEX, RGB, HSL, and CMYK — build palettes too.
• QR Code & Barcode Generator Generate QR codes for URLs, WiFi, contact cards, email, SMS, and phone numbers — plus standard 1D barcodes.
• App Store Asset Generator Resize your icon and screenshots to the exact required sizes for Google Play, Apple App Store, and Microsoft Store.

• IP & Subnet Calculator CIDR calculator, subnet mask converter, IP range to CIDR, bits-to-hosts table.
• Domain Health Checker Health check DNS, SSL, server & security headers, page size, blacklist status, and basic SEO.
• DNS Records, WHOIS & Propagation Checker Check DNS records, domain WHOIS details, verify nameservers, and track DNS propagation.
• Network Diagnostic Tools Ping, Traceroute and MTR test connectivity from real locations around the world.

• Cloud Server Calculator Estimate vCPU, RAM, storage, backup capacity and monthly cloud server requirements for your workload.
• Google Cloud Cost Calculator Estimate Google Compute Engine CPU, memory, Persistent Disk and network costs by region.
• AWS Cloud Cost Calculator Estimate Amazon EC2, EBS storage, public IPv4 and outbound data transfer costs, then submit your configuration for a quotation.
• Azure Cloud Cost Calculator Estimate Microsoft Azure virtual machine, storage and networking costs, then submit your configuration for a quotation.

• JSON Formatter, Validator & Converter Format, validate, minify JSON — and convert to CSV or XML.
• Base64 Encoder & Decoder Encode/decode text, files, and images in Base64 including the URL-safe variant.
• JWT Decoder Decode JWT header and payload, inspect claims, check expiry — all in your browser.
• Timestamp & World Time Converter Convert Unix timestamps to dates and back, and see any time converted across multiple timezones at once.
• Hash Generator Generate MD5, SHA-1, SHA-256, SHA-384, and SHA-512 hashes from text or any file — live as you type, entirely in your browser.
• URL Encoder/Decoder & HTTP Status Codes Encode and decode URLs, parse URL components, and look up any HTTP status code.
• Strong Password Generator Generate cryptographically secure passwords using your browser's built-in Web Crypto API.
• Text Case Converter & Slug Generator Convert text to camelCase, snake_case, kebab-case, Title Case, and 7 more styles at once — plus Generate a clean, URL-safe slug — strips accents, configurable separator and length.
• Regex Tester Test regular expressions live with match highlighting, capture groups, and a replace preview.
• HTML Validator, Auto-Fixer & Beautifier Validate, Repair, and Format HTML Instantly—All in Your Browser.

• Markdown & HTML Converter Convert Markdown to HTML or HTML back to Markdown with live preview.
• Diff Tool — Text Comparison Compare two blocks of text line-by-line, with word-level highlighting.
• Unicode Converter Convert text to Unicode code points, UTF-8, UTF-16, UTF-32, percent-encoding, Base64, and decimal — or decode any of them back to text.
• Invisible & Non-Printable Character Viewer Reveal zero-width spaces, non-breaking spaces, byte order marks, control characters, and smart-quote look-alikes hiding in copy-pasted text.

RDAP and legacy WHOIS lookup for any domain or IP — with DNS records, registrar contacts, and a copy-ready registry record. Available on Windows and Android.

Preview a live domain on a staging server IP without changing DNS. Perfect for WordPress migrations, hosting moves, and SSL testing — with one-click restore.