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Practical tools built by our team for everyday IT and business use. No accounts, no paywalls, no strings.

All tools run in your browser — nothing is stored server-side
Featured Tool
Live & Free

Email Signature
Generator

Build professional HTML email signatures for individuals or entire teams. Upload your logo, customize colors and layout, then copy the HTML directly into Gmail, Outlook, or Apple Mail. Bulk-generate signatures for a whole org from a single CSV upload.

3 Templates
Bulk CSV Mode
6 Social Icons
ZIP Download
Logo Embedded as Base64
Gmail · Outlook · Apple Mail
Open Signature Generator
Hi there — thanks for reaching out. Let me know
what time works best for a call.
Jane Smith
IT Director  ·  Unified Array LLC
(845) 445-8536  |  [email protected]
unifiedarray.com
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IP & Network Lookup
Check any IP or domain — or your own. Returns ISP, ASN, geolocation, timezone, and reverse DNS. Auto-loads your current public IP on open.
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Password Generator
Cryptographically random passwords using the browser's secure CSPRNG. NIST, Active Directory, Wi-Fi, and PIN presets. Bulk generate up to 100 at once.
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Internet Speed Test
Test download, upload, and latency from your current connection. Compare against your ISP's SLA or diagnose bandwidth issues at client sites.
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MX / DNS Record Checker
Look up A, AAAA, MX, CNAME, TXT, NS, SPF, DKIM, and DMARC records for any domain via Cloudflare DNS over HTTPS. Filter by record type.
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Live
Subnet Calculator
Enter any CIDR or IP + mask. Returns network, broadcast, first/last host, wildcard mask, binary breakdown, and automatic subnet split tables.
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SSL Certificate Checker
Verify certificate validity, expiration countdown, SANs, issuer chain, and Qualys SSL Labs grade for any domain. Catches expirations before clients do.
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WHOIS / Domain Lookup
Look up registration details, expiry date, registrar, name servers, and ownership for any domain. Uses the modern RDAP protocol for accurate, structured results.
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Email Header Analyzer
Paste raw email headers to trace the full routing path, check SPF/DKIM/DMARC authentication results, identify the originating IP, and spot delivery delays.
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Open Port Checker
Test whether a TCP port is open or closed on any host from Cloudflare's edge network. Includes quick presets for RDP, SSH, SMTP, HTTP, HTTPS, SMB, SQL, and more.
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QR Code Generator
Generate QR codes for URLs, contact cards, Wi-Fi credentials, phone numbers, or any text. Adjustable size and error correction. Download as PNG. 100% client-side.
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Live
Base64 / URL Encoder
Encode and decode Base64, URL encoding, HTML entities, and hexadecimal instantly. Live output as you type, swap and copy in one click. Nothing sent to any server.
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Live
IP Range Visualizer
Add multiple CIDR blocks to see their address space side by side, detect overlapping ranges, and get a full breakdown of network, broadcast, host range, and host count.
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Website Security Scanner
Check any site's security headers — HSTS, CSP, X-Frame-Options, Referrer Policy, and more. Get an instant A–F grade with per-check pass/fail and actionable fixes.
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