chmod Permissions Calculator
Build Linux & Unix file permissions visually.
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Linux Command Tools
Helps you build Linux commands with flag and parameter explanations and a live preview.
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cURL to Code Converter
Convert cURL commands to source code; over 25 languages supported.
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Linux Package Manager Translator
Translate linux package manager commands; apt,dnf,pacman,zypper, etc.
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Cron Expression Generator
Create Linux Cron Expressions
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Regular Expression Tester
Test/Create Regex
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Regex Pattern Dictionary
Search through hundreds of common regex patterns for any use case.
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Git Commander
Visually construct complex git commands.
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.htaccess File Builder
Build & format your .htaccess files
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robots.txt File Generator
Build & format your robot.txt file.
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IP Subnet Calculator
Easily work with subnets
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CIDR Range Expander
Expand CIDR ranges, calculate subnets, check IP membership, compare networks, etc.
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DNS Lookup Tool
Look-up DNS records online
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WHOIS Lookup
Look up domain registration, DNS records, SSL certs, etc for any domain or IP
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HTTP Header Inspector
Analyze response headers, security, performance, redirects, etc.
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SSL Toolkit
A dozen useful SSL tools
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MAC Address Lookup Tool
Find details for MAC addresses.
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User Agent Parser & Analyzer
Decode User Agent Data
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JQ Playground
Paste JSON, YAML, or CSV, write a jq filter, and see results update live.
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Base64 Encoder / Decoder
Encode and decode Base64 strings and files. Your data never leaves your device.
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Online Hash Generator
Generate MD5, SHA-1, SHA-256, SHA-512, SHA-3, CRC32, BLAKE2, and HMAC hashes.
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JSON formatter / Validator
Format / validate / minimize JSON
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Data Formatter
Format, beautify, minify, and validate data and code.
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Hex Editor
Edit files in Hexadecimal Mode!
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Number base converter
Binary, hex, Octal, etc.
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Cheat Sheet Hub
View and print quick reference guides.
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