Network
IP Lookup
Inspect IP type and reverse DNS details.
Use-Case Landing
Network Troubleshooting
Diagnose addressing, DNS, and transport bottlenecks quickly.
Why this stack
Use these tools together to validate address math, DNS records, MTU/MSS settings, and end-to-end performance assumptions.
Network
DNS Lookup
Query DNS records by type for a host.
Network
Subnet Calculator
Calculate network, broadcast, host range, and mask details from CIDR.
Network
MTU MSS Calculator
Calculate effective payload and TCP MSS from MTU and tunnel overhead.
Network
Latency Budget Calculator
Allocate and track end-to-end latency budget across system components.
Developer Tools
Barcode Generator
Generate CODE39 and EAN-13 barcodes as SVG output.
Network
CIDR Aggregator
Compute a covering supernet for multiple CIDR blocks.
Developer Tools
Cron Builder
Build cron expressions and ready-to-paste crontab lines from schedule fields.
Network
DNS Propagation Checker
Check DNS record propagation across major public resolvers.
Network
DNS Record Builder
Generate valid DNS zone record lines for common record types.
Developer Tools
Hash Generator
Generate MD5, SHA1, and SHA256 hashes from input text.
Developer Tools
HTTP Headers Checker
Fetch response headers for a URL using HEAD requests.
Network
IP Classifier
Classify IPv4/IPv6 addresses by private, loopback, multicast, and more.
Developer Tools
JWT Decoder
Decode JWT header and payload claims for debugging.
Network
Packet Loss Impact Estimator
Estimate throughput degradation from loss and RTT assumptions.
Developer Tools
Password Generator
Generate secure random passwords with customizable rules.
Developer Tools
Password Strength Checker
Evaluate password strength with score, entropy estimate, and improvement tips.
Network
Port Range Planner
Plan port ranges against concurrent session requirements.
Developer Tools
Random String Generator
Generate random strings with configurable length and character sets.
Developer Tools
Regex Tester
Test regular expressions with flags, matches, and capture groups.
Developer Tools
SHA256 Generator
Generate SHA256 hashes from plain text input.
Developer Tools
SQL Prettifier
Format SQL queries into readable or compact output.
Network
Supernet Calculator
Find the smallest covering CIDR for an IPv4 start/end range.
Network
Throughput Unit Converter
Convert bps/Kbps/Mbps/Gbps and estimate transfer time.
Developer Tools
Unix Timestamp Converter
Convert unix timestamps to UTC datetime and back.
Network
Uptime SLA Calculator
Translate SLA percentage targets into allowed downtime windows.
Developer Tools
URL Encoder Decoder
Encode and decode URL strings for safe query and path handling.
Network
VLSM Planner
Plan variable-length subnet allocations from a base CIDR.
Network
What's My IP
Show the client IP address seen by the server.
Developer Tools
XML Formatter
Pretty-print, compact, and validate XML quickly.
Developer Tools
AI Prompt Optimizer
Analyze and improve AI prompts for clarity and effectiveness.
Developer Tools
Base64 Encoder Decoder
Encode and decode Base64 text directly in browser.
Network
IPv4 to Integer Converter
Convert IPv4 addresses to 32-bit integers and back.
Network
IPv6 Compressor Expander
Compress or fully expand IPv6 notation.
Developer Tools
SSL Certificate Validator
Check SSL/TLS certificate validity and details.
Developer Tools
User Agent Parser
Parse browser, OS, and device from user-agent strings.
Network
WHOIS Lookup
Fetch WHOIS registration data for domains.
Network
Wildcard Mask Calculator
Convert subnet masks into wildcard masks for ACL rules.