Network Engineer Toolkit
Network engineers design, operate, and troubleshoot the infrastructure that everything else depends on. From debugging packet captures to validating ACL rules, converting between hex and ASCII, and looking up IP address ownership, the micro-tasks add up. These free, browser-based tools accelerate the daily work without requiring CLI access or additional software.
IP Address Lookup
Look up any IP address to find its geographic location, ASN, and hosting provider. Essential for identifying traffic sources, verifying BGP peer information, and investigating suspicious connections in firewall logs.
Hex Converter
Convert between hex and ASCII when analyzing packet captures, inspecting SNMP OIDs, or reading raw protocol data. Network protocols frequently use hex-encoded values that need quick translation.
RegExp Tester
Build regex patterns for parsing syslog output, matching ACL entries, or filtering show command output on network devices. Test patterns with live highlighting before deploying them in automation scripts.
Base64 Encoder / Decoder
Decode Base64-encoded RADIUS attributes, certificate data, and SNMP community strings. Encode configuration snippets for API-driven network automation platforms.
JSON Formatter & Validator
Pretty-print JSON responses from network automation APIs — Cisco DNA Center, Arista eAPI, Junos REST API. Validate JSON payloads before sending configuration changes via API.
Code Diff Tool
Compare running configurations against startup configurations, or before-and-after change window snapshots. The side-by-side view highlights exactly which lines changed — critical for change verification.
JSON to YAML Converter
Convert JSON API responses to YAML for Ansible playbooks, Nornir inventories, and network automation templates. Keeps your infrastructure-as-code consistent.
Crontab Calculator
Validate cron expressions for automated backup jobs, configuration snapshot scripts, and network monitoring tasks. Prevent scheduling mistakes that cause backup windows to overlap with maintenance.
Timestamp Converter
Convert timestamps from syslog, NetFlow, and SNMP trap data to human-readable dates. Correlate events across devices in different time zones during outage investigations.
cURL Converter
Test network device APIs with cURL before writing automation scripts. Convert API documentation examples into working requests for Cisco, Arista, Juniper, and Palo Alto platforms.
MD5 / Hash Generator
Generate MD5 hashes for verifying firmware image integrity, configuration file checksums, and OSPF/BGP authentication key validation.
Distance Calculator
Calculate distances between data center locations for latency estimation, disaster recovery planning, and WAN link capacity planning. Useful for understanding the physical geography of your network.