54 tools
Network & DNS
Look up records, validate IPs, and inspect HTTP, TLS, and routing details.
WHOIS Lookup
Whether you are double-checking a hunch or preparing a client-facing number, WHOIS Lookup gives you an immediate network & dns workspace with sensible defaults. If a field is blank, the tool tells you what is missing instead of inventing a fake number.
Global · network tools
IP Address Lookup
IP Address Lookup exists because search results for this job are usually calculators with ads in the way. Here the form is the page: enter values, get a real answer. Mobile inputs use large tap targets so you can run it on site, not just at a desk.
Global · network tools
IPv4 Validator
This IPv4 Validator is part of the FreeToolsBox network & dns set. It uses the same design language as the rest of the site so you can move between related tools without relearning the UI. It is built for repeat use: reset, tweak one assumption, and compare.
Global · network tools
IPv6 Validator
IPv6 Validator is a free everyday network & dn that helps you work out results in the browser—no account and no waiting on a queue. Results update as you type, and you can copy or download the output when you need to keep a record.
Global · network tools
Subnet Calculator
Use this Subnet Calculator when you need a trustworthy network & dns answer without opening a spreadsheet. Inputs stay on your device unless a live network lookup is required. Share the URL with a teammate—the slug is stable and the layout is printer-friendly.
Global · network tools
CIDR Calculator
FreeToolsBox built CIDR Calculator for people who want everyday figures they can actually explain: transparent math, clear outputs, and a reset button when you want a second scenario. If a field is blank, the tool tells you what is missing instead of inventing a fake number.
Global · network tools
IP Range Calculator
IP Range Calculator turns a messy network & dns question into a structured form. Enter what you know, read the breakdown, and copy the bits you need. Mobile inputs use large tap targets so you can run it on site, not just at a desk.
Global · network tools
MAC Address Lookup
Skip the template hunt. MAC Address Lookup is a focused, privacy-minded tool for everyday network & dns work, designed to load fast and stay readable on a phone. It is built for repeat use: reset, tweak one assumption, and compare.
Global · network tools
MAC Address Generator
Whether you are double-checking a hunch or preparing a client-facing number, MAC Address Generator gives you an immediate network & dns workspace with sensible defaults. Results update as you type, and you can copy or download the output when you need to keep a record.
Global · network tools
DNS Record Lookup
DNS Record Lookup exists because search results for this job are usually calculators with ads in the way. Here the form is the page: enter values, get a real answer. Share the URL with a teammate—the slug is stable and the layout is printer-friendly.
Global · network tools
MX Record Lookup
This MX Record Lookup is part of the FreeToolsBox network & dns set. It uses the same design language as the rest of the site so you can move between related tools without relearning the UI. If a field is blank, the tool tells you what is missing instead of inventing a fake number.
Global · network tools
TXT Record Lookup
TXT Record Lookup is a free everyday network & dn that helps you decode results in the browser—no account and no waiting on a queue. Mobile inputs use large tap targets so you can run it on site, not just at a desk.
Global · network tools
CNAME Lookup
Use this CNAME Lookup when you need a trustworthy network & dns answer without opening a spreadsheet. Inputs stay on your device unless a live network lookup is required. It is built for repeat use: reset, tweak one assumption, and compare.
Global · network tools
NS Record Lookup
FreeToolsBox built NS Record Lookup for people who want everyday figures they can actually explain: transparent math, clear outputs, and a reset button when you want a second scenario. Results update as you type, and you can copy or download the output when you need to keep a record.
Global · network tools
Reverse DNS Lookup
Reverse DNS Lookup turns a messy network & dns question into a structured form. Enter what you know, read the breakdown, and copy the bits you need. Share the URL with a teammate—the slug is stable and the layout is printer-friendly.
Global · network tools
DNS Propagation Checker
Skip the template hunt. DNS Propagation Checker is a focused, privacy-minded tool for everyday network & dns work, designed to load fast and stay readable on a phone. If a field is blank, the tool tells you what is missing instead of inventing a fake number.
Global · network tools
Domain Availability Checker
Whether you are double-checking a hunch or preparing a client-facing number, Domain Availability Checker gives you an immediate network & dns workspace with sensible defaults. Mobile inputs use large tap targets so you can run it on site, not just at a desk.
Global · network tools
Domain Name Generator
Domain Name Generator exists because search results for this job are usually calculators with ads in the way. Here the form is the page: enter values, get a real answer. It is built for repeat use: reset, tweak one assumption, and compare.
Global · network tools
Domain Expiration Checker
This Domain Expiration Checker is part of the FreeToolsBox network & dns set. It uses the same design language as the rest of the site so you can move between related tools without relearning the UI. Results update as you type, and you can copy or download the output when you need to keep a record.
Global · network tools
Domain Redirect Checker
Domain Redirect Checker is a free everyday network & dn that helps you plan results in the browser—no account and no waiting on a queue. Share the URL with a teammate—the slug is stable and the layout is printer-friendly.
Global · network tools
SSL Certificate Checker
Use this SSL Certificate Checker when you need a trustworthy network & dns answer without opening a spreadsheet. Inputs stay on your device unless a live network lookup is required. If a field is blank, the tool tells you what is missing instead of inventing a fake number.
Global · network tools
SSL Expiry Checker
FreeToolsBox built SSL Expiry Checker for people who want everyday figures they can actually explain: transparent math, clear outputs, and a reset button when you want a second scenario. Mobile inputs use large tap targets so you can run it on site, not just at a desk.
Global · network tools
Certificate Decoder
Certificate Decoder turns a messy network & dns question into a structured form. Enter what you know, read the breakdown, and copy the bits you need. It is built for repeat use: reset, tweak one assumption, and compare.
Global · network tools
User Agent Parser
Skip the template hunt. User Agent Parser is a focused, privacy-minded tool for everyday network & dns work, designed to load fast and stay readable on a phone. Results update as you type, and you can copy or download the output when you need to keep a record.
Global · network tools
HTTP Headers Checker
Whether you are double-checking a hunch or preparing a client-facing number, HTTP Headers Checker gives you an immediate network & dns workspace with sensible defaults. Share the URL with a teammate—the slug is stable and the layout is printer-friendly.
Global · network tools
HTTP Header Generator
HTTP Header Generator exists because search results for this job are usually calculators with ads in the way. Here the form is the page: enter values, get a real answer. If a field is blank, the tool tells you what is missing instead of inventing a fake number.
Global · network tools
Port Checker
This Port Checker is part of the FreeToolsBox network & dns set. It uses the same design language as the rest of the site so you can move between related tools without relearning the UI. Mobile inputs use large tap targets so you can run it on site, not just at a desk.
Global · network tools
Ping Tester
Ping Tester is a free everyday network & dn that helps you convert results in the browser—no account and no waiting on a queue. It is built for repeat use: reset, tweak one assumption, and compare.
Global · network tools
Traceroute Lookup
Use this Traceroute Lookup when you need a trustworthy network & dns answer without opening a spreadsheet. Inputs stay on your device unless a live network lookup is required. Results update as you type, and you can copy or download the output when you need to keep a record.
Global · network tools
My IP Address Tool
FreeToolsBox built My IP Address Tool for people who want everyday figures they can actually explain: transparent math, clear outputs, and a reset button when you want a second scenario. Share the URL with a teammate—the slug is stable and the layout is printer-friendly.
Global · network tools
IPv4 to IPv6 Converter
IPv4 to IPv6 Converter turns a messy network & dns question into a structured form. Enter what you know, read the breakdown, and copy the bits you need. If a field is blank, the tool tells you what is missing instead of inventing a fake number.
Global · network tools
Decimal IP Converter
Skip the template hunt. Decimal IP Converter is a focused, privacy-minded tool for everyday network & dns work, designed to load fast and stay readable on a phone. Mobile inputs use large tap targets so you can run it on site, not just at a desk.
Global · network tools
Binary IP Converter
Whether you are double-checking a hunch or preparing a client-facing number, Binary IP Converter gives you an immediate network & dns workspace with sensible defaults. It is built for repeat use: reset, tweak one assumption, and compare.
Global · network tools
IP to Binary Converter
IP to Binary Converter exists because search results for this job are usually calculators with ads in the way. Here the form is the page: enter values, get a real answer. Results update as you type, and you can copy or download the output when you need to keep a record.
Global · network tools
WiFi Speed Calculator
WiFi Speed Calculator turns a messy network & dns question into a structured form. Enter what you know, read the breakdown, and copy the bits you need. If a field is blank, the tool tells you what is missing instead of inventing a fake number.
Global · network tools
Download Time Calculator
Skip the template hunt. Download Time Calculator is a focused, privacy-minded tool for everyday network & dns work, designed to load fast and stay readable on a phone. Mobile inputs use large tap targets so you can run it on site, not just at a desk.
Global · network tools
Upload Time Calculator
Whether you are double-checking a hunch or preparing a client-facing number, Upload Time Calculator gives you an immediate network & dns workspace with sensible defaults. It is built for repeat use: reset, tweak one assumption, and compare.
Global · network tools
Bandwidth Calculator
Bandwidth Calculator exists because search results for this job are usually calculators with ads in the way. Here the form is the page: enter values, get a real answer. Results update as you type, and you can copy or download the output when you need to keep a record.
Global · network tools
Data Usage Calculator
This Data Usage Calculator is part of the FreeToolsBox network & dns set. It uses the same design language as the rest of the site so you can move between related tools without relearning the UI. Share the URL with a teammate—the slug is stable and the layout is printer-friendly.
Global · network tools
Internet Data Transfer Calculator
Internet Data Transfer Calculator is a free everyday network & dn that helps you generate results in the browser—no account and no waiting on a queue. If a field is blank, the tool tells you what is missing instead of inventing a fake number.
Global · network tools
Network Speed Converter
Use this Network Speed Converter when you need a trustworthy network & dns answer without opening a spreadsheet. Inputs stay on your device unless a live network lookup is required. Mobile inputs use large tap targets so you can run it on site, not just at a desk.
Global · network tools
Mbps to MB/s Converter
FreeToolsBox built Mbps to MB/s Converter for people who want everyday figures they can actually explain: transparent math, clear outputs, and a reset button when you want a second scenario. It is built for repeat use: reset, tweak one assumption, and compare.
Global · network tools
MB/s to Mbps Converter
MB/s to Mbps Converter turns a messy network & dns question into a structured form. Enter what you know, read the breakdown, and copy the bits you need. Results update as you type, and you can copy or download the output when you need to keep a record.
Global · network tools
Ping Latency Calculator
Skip the template hunt. Ping Latency Calculator is a focused, privacy-minded tool for everyday network & dns work, designed to load fast and stay readable on a phone. Share the URL with a teammate—the slug is stable and the layout is printer-friendly.
Global · network tools
Subnet Mask Calculator
Whether you are double-checking a hunch or preparing a client-facing number, Subnet Mask Calculator gives you an immediate network & dns workspace with sensible defaults. If a field is blank, the tool tells you what is missing instead of inventing a fake number.
Global · network tools
Network Address Calculator
Network Address Calculator exists because search results for this job are usually calculators with ads in the way. Here the form is the page: enter values, get a real answer. Mobile inputs use large tap targets so you can run it on site, not just at a desk.
Global · network tools
Broadcast Address Calculator
This Broadcast Address Calculator is part of the FreeToolsBox network & dns set. It uses the same design language as the rest of the site so you can move between related tools without relearning the UI. It is built for repeat use: reset, tweak one assumption, and compare.
Global · network tools
Usable IP Calculator
Usable IP Calculator is a free everyday network & dn that helps you work out results in the browser—no account and no waiting on a queue. Results update as you type, and you can copy or download the output when you need to keep a record.
Global · network tools
CIDR Range Calculator
Use this CIDR Range Calculator when you need a trustworthy network & dns answer without opening a spreadsheet. Inputs stay on your device unless a live network lookup is required. Share the URL with a teammate—the slug is stable and the layout is printer-friendly.
Global · network tools
IPv4 Subnet Calculator
FreeToolsBox built IPv4 Subnet Calculator for people who want everyday figures they can actually explain: transparent math, clear outputs, and a reset button when you want a second scenario. If a field is blank, the tool tells you what is missing instead of inventing a fake number.
Global · network tools
IPv6 Subnet Calculator
IPv6 Subnet Calculator turns a messy network & dns question into a structured form. Enter what you know, read the breakdown, and copy the bits you need. Mobile inputs use large tap targets so you can run it on site, not just at a desk.
Global · network tools
DNS TTL Checker
Skip the template hunt. DNS TTL Checker is a focused, privacy-minded tool for everyday network & dns work, designed to load fast and stay readable on a phone. It is built for repeat use: reset, tweak one assumption, and compare.
Global · network tools
DNSSEC Checker
Whether you are double-checking a hunch or preparing a client-facing number, DNSSEC Checker gives you an immediate network & dns workspace with sensible defaults. Results update as you type, and you can copy or download the output when you need to keep a record.
Global · network tools
Email DNS Checker
Email DNS Checker exists because search results for this job are usually calculators with ads in the way. Here the form is the page: enter values, get a real answer. Share the URL with a teammate—the slug is stable and the layout is printer-friendly.
Global · network tools