Web Server Tools67 Free Tools

Free Web Server Tools

DNS lookup, WHOIS, SSL checker, HTTP headers inspector, CORS tester, uptime & DevOps tools.

DNS LookupWHOIS LookupSSL CheckerCORS CheckerHTTP HeadersUptime CheckerYAML ValidatorJWT Decoder

OLD SLOW TOOLS ARE HOLDING YOU BACK

What Legacy Tools Do

  • Upload your private files to unknown cloud servers
  • Force annoying daily limits, watermarks & captcha locks
  • Require expensive monthly subscriptions or credit cards
  • Slow processing speeds with server queue waiting times

What Atuzed Delivers

  • 100% In-Browser Privacy — files never leave your device
  • Zero watermarks, zero limits, zero captcha locks
  • 100% Free Forever with unlimited file conversions
  • Instant WebAssembly processing speed on mobile & desktop

⚡ Limited Spots • No Credit Card • 100% Free Forever

Most Popular Web Server Tools

All Web Server Tools (67)

100% Free & Client-Side
Active
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HTTP Headers Checker
Inspect all HTTP response headers returned by any URL
80.7k+ Uses⚡ Free
Active
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HTTP Status Code Checker
Check the HTTP status code returned by any URL
72.3k+ Uses⚡ Free
Active
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HTTP Request Tester
Send custom HTTP GET, POST, PUT, DELETE requests and inspect responses
66.0k+ Uses⚡ Free
Active
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Ping Test
Ping any hostname or IP address to check reachability and response time
115.4k+ Uses⚡ Free
Active
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Website Uptime Checker
Check if a website is online or down right now
136.4k+ Uses⚡ Free
Active
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DNS Lookup
Look up DNS records for any domain — A, AAAA, MX, TXT, CNAME, NS, SOA
80.5k+ Uses⚡ Free
Active
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WHOIS Lookup
Look up domain registration, owner, registrar, and expiry information
70.8k+ Uses⚡ Free
Active
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SSL Certificate Checker
Check SSL/TLS certificate validity, grade, and expiry for any domain
110.2k+ Uses⚡ Free
Active
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Security Headers Checker
Analyze HTTP security headers: CSP, HSTS, X-Frame-Options, and more
120.1k+ Uses⚡ Free
Active
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CORS Checker
Test Cross-Origin Resource Sharing (CORS) headers for any API endpoint
136.4k+ Uses⚡ Free
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Redirect Checker
Trace HTTP redirect chains from a URL to its final destination
99.8k+ Uses⚡ Free
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Gzip / Brotli Compression Checker
Check if a website uses Gzip or Brotli compression to speed up loading
118.2k+ Uses⚡ Free
Active
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IP Geolocation Lookup
Find the location, ISP, timezone, and ASN of any IP address
107.2k+ Uses⚡ Free
Active
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robots.txt Tester
Fetch and inspect the robots.txt file for any website
74.6k+ Uses⚡ Free
Active
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YAML Validator
Validate YAML syntax for config files, Docker Compose, Kubernetes, and CI/CD
13.9k+ Uses⚡ Free
Active
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JWT Decoder
Decode and inspect JSON Web Tokens — header, payload, and expiry
12.3k+ Uses⚡ Free
Active
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Base64 Encoder / Decoder
Encode or decode text and data using Base64 encoding
144.8k+ Uses⚡ Free
Active
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WebSocket Tester
Test WebSocket connections and get developer guidance for ws:// and wss:// URLs
103.4k+ Uses⚡ Free
Active
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.ENV File Generator
Generate .env environment variable files from key-value pairs
42.8k+ Uses⚡ Free
Active
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Server Header Checker
Professional, free online server header checker tool. Fast 100% client-side browser processing with zero upload.
28.4k+ Uses⚡ Free
Active
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Web Server Detector
Professional, free online web server detector tool. Fast 100% client-side browser processing with zero upload.
30.1k+ Uses⚡ Free
Active
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Brotli Checker
Professional, free online brotli checker tool. Fast 100% client-side browser processing with zero upload.
80.9k+ Uses⚡ Free
Active
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HTTP2 Checker
Professional, free online http2 checker tool. Fast 100% client-side browser processing with zero upload.
109.1k+ Uses⚡ Free
Active
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HTTP3 Checker
Professional, free online http3 checker tool. Fast 100% client-side browser processing with zero upload.
115.4k+ Uses⚡ Free
Active
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DNS Propagation Checker
Professional, free online dns propagation checker tool. Fast 100% client-side browser processing with zero upload.
26.7k+ Uses⚡ Free
Active
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A Record Lookup
Professional, free online a record lookup tool. Fast 100% client-side browser processing with zero upload.
64.4k+ Uses⚡ Free
Active
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AAAA Lookup
Professional, free online aaaa lookup tool. Fast 100% client-side browser processing with zero upload.
69.9k+ Uses⚡ Free
Active
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MX Lookup
Professional, free online mx lookup tool. Fast 100% client-side browser processing with zero upload.
50.5k+ Uses⚡ Free
Active
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TXT Lookup
Professional, free online txt lookup tool. Fast 100% client-side browser processing with zero upload.
146.6k+ Uses⚡ Free
Active
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CNAME Lookup
Professional, free online cname lookup tool. Fast 100% client-side browser processing with zero upload.
49.8k+ Uses⚡ Free
Active
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NS Lookup
Professional, free online ns lookup tool. Fast 100% client-side browser processing with zero upload.
52.8k+ Uses⚡ Free
Active
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SOA Lookup
Professional, free online soa lookup tool. Fast 100% client-side browser processing with zero upload.
134.1k+ Uses⚡ Free
Active
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Reverse DNS
Professional, free online reverse dns tool. Fast 100% client-side browser processing with zero upload.
85.1k+ Uses⚡ Free
Active
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SSL Expiry Checker
Professional, free online ssl expiry checker tool. Fast 100% client-side browser processing with zero upload.
26.1k+ Uses⚡ Free
Active
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TLS Checker
Professional, free online tls checker tool. Fast 100% client-side browser processing with zero upload.
43.9k+ Uses⚡ Free
Active
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Certificate Decoder
Professional, free online certificate decoder tool. Fast 100% client-side browser processing with zero upload.
37.2k+ Uses⚡ Free
Active
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CSR Generator
Professional, free online csr generator tool. Fast 100% client-side browser processing with zero upload.
37.3k+ Uses⚡ Free
Active
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CSR Decoder
Professional, free online csr decoder tool. Fast 100% client-side browser processing with zero upload.
61.0k+ Uses⚡ Free
Active
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Certificate Chain Checker
Professional, free online certificate chain checker tool. Fast 100% client-side browser processing with zero upload.
63.7k+ Uses⚡ Free
Active
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HTTPS Checker
Professional, free online https checker tool. Fast 100% client-side browser processing with zero upload.
84.0k+ Uses⚡ Free
Active
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HSTS Checker
Professional, free online hsts checker tool. Fast 100% client-side browser processing with zero upload.
67.7k+ Uses⚡ Free
Active
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Certificate Fingerprint Checker
Professional, free online certificate fingerprint checker tool. Fast 100% client-side browser processing with zero upload.
72.3k+ Uses⚡ Free
Active
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CSP Checker
Professional, free online csp checker tool. Fast 100% client-side browser processing with zero upload.
36.8k+ Uses⚡ Free
Active
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HSTS Inspector
Professional, free online hsts inspector tool. Fast 100% client-side browser processing with zero upload.
70.9k+ Uses⚡ Free
Active
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SPF Checker
Professional, free online spf checker tool. Fast 100% client-side browser processing with zero upload.
61.5k+ Uses⚡ Free
Active
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DKIM Checker
Professional, free online dkim checker tool. Fast 100% client-side browser processing with zero upload.
125.6k+ Uses⚡ Free
Active
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DMARC Checker
Professional, free online dmarc checker tool. Fast 100% client-side browser processing with zero upload.
10.5k+ Uses⚡ Free
Active
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Mixed Content Checker
Professional, free online mixed content checker tool. Fast 100% client-side browser processing with zero upload.
83.7k+ Uses⚡ Free
Active
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Cookie Security Checker
Professional, free online cookie security checker tool. Fast 100% client-side browser processing with zero upload.
81.3k+ Uses⚡ Free
Active
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Open Redirect Checker
Professional, free online open redirect checker tool. Fast 100% client-side browser processing with zero upload.
12.3k+ Uses⚡ Free
Active
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Traceroute Tool
Professional, free online traceroute tool tool. Fast 100% client-side browser processing with zero upload.
107.9k+ Uses⚡ Free
Active
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Reverse IP Lookup
Professional, free online reverse ip lookup tool. Fast 100% client-side browser processing with zero upload.
16.6k+ Uses⚡ Free
Active
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ASN Lookup
Professional, free online asn lookup tool. Fast 100% client-side browser processing with zero upload.
75.8k+ Uses⚡ Free
Active
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Port Checker
Professional, free online port checker tool. Fast 100% client-side browser processing with zero upload.
50.8k+ Uses⚡ Free
Active
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IPv4 Calculator
Professional, free online ipv4 calculator tool. Fast 100% client-side browser processing with zero upload.
9.4k+ Uses⚡ Free
Active
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IPv6 Calculator
Professional, free online ipv6 calculator tool. Fast 100% client-side browser processing with zero upload.
18.3k+ Uses⚡ Free
Active
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Subnet Calculator
Professional, free online subnet calculator tool. Fast 100% client-side browser processing with zero upload.
27.3k+ Uses⚡ Free
Active
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MAC Address Lookup
Professional, free online mac address lookup tool. Fast 100% client-side browser processing with zero upload.
88.4k+ Uses⚡ Free
Active
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Domain Availability
Professional, free online domain availability tool. Fast 100% client-side browser processing with zero upload.
26.1k+ Uses⚡ Free
Active
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Domain Age Checker
Professional, free online domain age checker tool. Fast 100% client-side browser processing with zero upload.
57.1k+ Uses⚡ Free
Active
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Domain Expiry Checker
Professional, free online domain expiry checker tool. Fast 100% client-side browser processing with zero upload.
19.8k+ Uses⚡ Free
Active
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Domain IP Lookup
Professional, free online domain ip lookup tool. Fast 100% client-side browser processing with zero upload.
130.2k+ Uses⚡ Free
Active
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Domain History Checker
Professional, free online domain history checker tool. Fast 100% client-side browser processing with zero upload.
13.5k+ Uses⚡ Free
Active
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Nameserver Checker
Professional, free online nameserver checker tool. Fast 100% client-side browser processing with zero upload.
85.5k+ Uses⚡ Free
Active
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Domain Redirect Checker
Professional, free online domain redirect checker tool. Fast 100% client-side browser processing with zero upload.
103.4k+ Uses⚡ Free
Active
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Domain Authority Checker
Professional, free online domain authority checker tool. Fast 100% client-side browser processing with zero upload.
12.2k+ Uses⚡ Free
Active
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Domain Comparison
Professional, free online domain comparison tool. Fast 100% client-side browser processing with zero upload.
71.3k+ Uses⚡ Free

Why Use Our Web Server Tools?

Domain & DNS Diagnostics

Query A, AAAA, MX, TXT, CNAME, NS, SOA, and CAA records via Google Public DNS.

Domain WHOIS & RDAP

Inspect domain registrar, registration date, expiry date, status badges, and name servers.

SSL & Security Header Audits

Check SSL validity, cipher grades, CSP, HSTS, X-Frame-Options, and CORS preflight policies.

Website Uptime & Ping

Check if a website is online, test response latency, and follow 301/302 redirect chains.

JWT & Token Inspector

Decode JSON Web Tokens to inspect algorithm, payload claims, subject, and expiration.

DevOps & Config Validation

Validate YAML files, test robots.txt, check Gzip/Brotli compression, and generate .env files.

Frequently Asked Questions — Web Server Tools