2FA Authentication Code Generator

Get a secure 2-step authentication code. Supports entering each secret and format Name|SECRET or link otpauth://.

2FA Secret Key (One Secret per line)

Enter Secret 2FA for the system to automatically generate the OTP code.

Password Generator

Generate random passwords with a custom character set and length, similar to how secure password generators work.

Random Password

Password is created

Length Tow bar

You should use a minimum of 16 characters, turn on uppercase letters, lowercase letters, numbers and special characters for important accounts.

Advanced Hash Generator

Password needs encryption

Algorithm type Salt HEX Number of loops

IPv4 Network Classification Calculator

Calculate network, broadcast, address range, subnet mask, usable host and wildcard mask according to CIDR.

IPv4 / CIDR

CIDR Symbol Network Address Range Number of Network Bits Cyber Mask Number of Available Hosts Reversed Mask

IPv6 Network Classification Calculator

Calculate IPv6 network range, prefix, number of available addresses and toggle long/short display style.

IPv6 / Prefix

CIDR Symbol Display Type Starting Address Range End Address Range Number of Network Bits Available IPv6 Number

MAC Address Converter

Synchronize MAC address codes between EUI-48, EUI-64, integer, base-16, dot notation and link-local IPv6 formats.

MAC address

EUI-48 Hexadecimal EUI-48 Dot Notation EUI-48 Integer EUI-64 Hexadecimal EUI-64 contains EUI-48 Link Local IPv6 OUI Plain

IPv4 Address Converter

Convert IP to integer, hexadecimal code and short/full IPv6 mapped.

IPv4 / Integer / Hex

Standard IPv4 format Integer Sequence Hexadecimal Code Shortened IPv6 Map Full IPv6 Map

UNIX Time System Computer

Flexibly convert between Unix timestamp and date and time in time zone, ISO format or readable format.

Unix Timestamp string Time Character

Source time zone Destination time zone Display type

Suggested use

Security Secret

Paste each secret on one line, or use format Name|SECRET to name the service. The OTP code will automatically generate when you enter it, no need to press a button.

Secret only processes in your browser. Do not send the 2FA secret to others or save it in an unsafe place.

Strong passwords

You should use a minimum of 16 characters, enable uppercase letters, lowercase letters, numbers and special characters for important accounts.

If you need to save passwords to your system, use a password manager. The hash section below is for testing or technical prototyping purposes only.

IPv4 planning

Enter in format 192.168.1.10/24 to see the network, broadcast, subnet mask, wildcard mask and number of available hosts.

Use this result when dividing VLANs, granting server IPs, creating firewall rules or quickly checking network ranges before deployment.

IPv6 planning

Enter IPv6 with prefix, for example 2001:db8::1/64. The tool calculates the starting range, ending range, and address number.

/64 Usually used for LAN/VLAN, /128 for a specific node. Check the prefix carefully to avoid assigning the wrong range.

MAC standardization

Paste MAC in colon, dot, plain or integer to change to EUI-48, EUI-64, OUI and link-local IPv6.

Useful when configuring switches, routers, device whitelists, hardware inventory or comparing network logs.

Advanced IPv4

Enter IPv4, integer or hex to convert between common storage formats.

Integer, hex and IPv6 mapped are often used in APIs, databases, firewall rules or log systems that need to store IP numbers as numbers.

Log and timestamp

Use Unix time to reconcile server logs, billing, cron jobs, webhooks, and events across multiple time zones.

You can change from timestamp to date and time or vice versa, then select the target time zone to avoid time deviation when debugging.

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