Ferramentas de rede grátis online
Use ferramentas grátis online rápidas para decompor URLs, inspecionar IPs, validar dados de rede e entender informações úteis para infraestrutura, suporte e desenvolvimento web.
Todas Ferramentas de rede
Analisador de URL
Separe uma URL em seus componentes
Consulta de endereço IP
Busque informações detalhadas sobre um endereço IP
Explicador de registros DNS
Entenda registros A, AAAA, CNAME, MX, TXT e NS com explica\u00e7\u00f5es claras
Codificador e decodificador de URL
Converta texto para URL encoding e decodifique par\u00e2metros com seguran\u00e7a
Codificador e decodificador Base64
Converta texto entre formato normal, Base64 e Base64 URL-safe no navegador
Inspetor de cabe\u00e7alho JWT
Leia o header de um JWT e confira algoritmo, tipo e campos b\u00e1sicos
Consulta de c\u00f3digos HTTP
Veja o significado de c\u00f3digos HTTP e entenda respostas 2xx, 4xx e 5xx
Analisador de User-Agent HTTP
Identifique navegador, sistema operacional, dispositivo e engine a partir do User-Agent
Calculadora de subnet IPv4
Calcule rede, broadcast, faixa de hosts e netmask a partir de IPv4 e CIDR
Conversor de CIDR para netmask
Converta prefixos CIDR em m\u00e1scaras IPv4 e revise a tabela de refer\u00eancia
Gerador e validador de endere\u00e7o MAC
Gere endere\u00e7os MAC para teste e valide o formato hexadecimal no navegador
Consulta de portas de rede
Descubra servi\u00e7os comuns por porta TCP/UDP e revise faixas conhecidas
Overview
Network troubleshooting often requires quick visibility into URLs, headers, IPs, and DNS concepts. This catalog provides a lightweight toolkit for parsing, decoding, and calculating common networking data without leaving your browser. Use it to accelerate diagnostics and documentation.
Network troubleshooting is detail-heavy
Network and web issues are often caused by small misconfigurations: a malformed URL, a wrong subnet, or a misinterpreted status code. Quick visibility prevents lengthy debugging cycles.
Developers and operators regularly need to decode encoded data, inspect headers, and understand DNS records. Without simple utilities, these checks become manual and error-prone.
Some diagnostics involve sensitive infrastructure details. Client-side tools help keep investigation data local and private.
Catalog Breakdown
URL and encoding utilities
Parse and decode URLs and common encodings.
- Break down URL components
- Encode or decode parameters
- Convert Base64 strings
IP and subnet analysis
Interpret IP details and calculate subnets quickly.
- Lookup IP address context
- Calculate subnet ranges
- Convert CIDR to netmask
Protocol and standards reference
Understand status codes, ports, and DNS records.
- Check HTTP status meanings
- Identify common port usage
- Understand DNS record types
Header and identity inspection
Inspect user agents and token headers safely.
- Parse user-agent strings
- Inspect JWT headers
- Validate MAC addresses
How to Use These Tools
Identify the network artifact
Choose whether you are analyzing a URL, IP, subnet, or encoding.
Paste the value
Insert the URL, token, or IP address into the relevant tool.
Review parsed output
Use the structured result to locate anomalies or misconfigurations.
Cross-check standards
Verify port numbers or HTTP status meanings when documenting.
Export or copy findings
Share the results with teammates or include in incident notes.
Validate against production
Confirm with real system logs or configs before acting.
Use Cases
Web debugging
Parse URLs and decode parameters during troubleshooting.
Security investigations
Inspect JWT headers or MAC address formats.
Network planning
Calculate subnets and netmasks for infrastructure changes.
Support documentation
Reference status codes and port numbers quickly.
Analytics validation
Decode Base64 and URL parameters from tracking.
QA testing
Verify user-agent strings across devices.
Professional Applications
DevOps
Troubleshoot connectivity and configure infrastructure.
Security engineering
Inspect tokens and validate addressing formats.
Backend engineering
Decode parameters and validate status codes.
IT support
Quickly identify issues in URLs and network settings.
Technical writing
Document protocols and error meanings accurately.
Best Practices
- Double-check inputs before making infrastructure changes.
- Use decoded values as references, not authoritative sources.
- Document HTTP status interpretations in incident reports.
- Treat geolocation results as approximate.
- Keep internal IPs and tokens private.
- Confirm subnet calculations with network diagrams.
- Use URL encoding tools before deploying tracking links.
FAQs
Is IP lookup exact?
IP geolocation is approximate and usually accurate at the city or region level.
Can I look up private IPs?
Private IPs cannot be geolocated and will show limited results.
Are decoded values stored?
No. Everything runs locally in your browser.
Do these tools require internet access?
Some lookups may rely on public data, but parsing works offline.
How accurate are subnet calculations?
They follow standard CIDR and IPv4 rules.
Is Base64 decoding safe?
Yes, but ensure the decoded content is trusted before use.
Can I validate a MAC address format?
Yes. The validator checks standard formats.
Do you log any network data?
No. We do not store or transmit input values.