Network & DevOps ToolkitAll Network & DevOps Tools
Every tool on one page — network math, encoders, generators, testers and converters. Free and private.
DNS Lookup
Query A/AAAA/MX/TXT/NS/CNAME records for any domain (DoH).
Open →Subnet / CIDR Calculator
Network, broadcast, mask, host range & counts for any IPv4 CIDR.
Open →Cron Expression Builder
Build & understand cron schedules in plain English.
Open →Base64 Encode / Decode
Encode or decode Base64 text.
Open →URL Encode / Decode
Percent-encode or decode URL components.
Open →JSON Formatter
Pretty-print, validate & minify JSON.
Open →JWT Decoder
Decode & inspect a JWT's header, payload & claims.
Open →Password Generator
Generate strong random passwords & passphrases.
Open →UUID / ULID Generator
Generate UUIDs, ULIDs & Nano IDs for keys and records.
Open →Hash Generator
MD5, SHA-1, SHA-256 & more for any text input.
Open →Unix Timestamp Converter
Convert Unix timestamps to/from human dates.
Open →Regex Tester
Build & test regular expressions with live matches.
Open →Data Size Converter
Convert bytes, KB, MB, GB & data rates instantly.
Open →Number Base Converter
Convert decimal, hex, binary & octal numbers.
Open →API Spec Explorer
Explore live OpenAPI / Swagger specs in a console.
Open →Text Encryptor
Encrypt & decrypt text locally with a passphrase.
Open →DevOps Cheat Sheet
Cron syntax, subnet masks, common ports, HTTP status codes & DNS record types — one page.
Open →MX Record Lookup
Mail servers, priorities & TTLs for any domain.
Open →TXT / SPF Lookup
SPF, DKIM, DMARC & verification TXT records, decoded.
Open →NS Record Lookup
Who's authoritative — the first DNS-propagation check.
Open →HMAC Generator
HMAC-SHA256 signatures for webhooks & API auth.
Open →File Checksum & Verify
Hash any file locally & verify published checksums.
Open →🔐 Private by design: every tool runs in your browser. DNS lookups go straight to Cloudflare's DoH resolver (1.1.1.1); nothing else is sent to any server, and nothing is logged.