Tools Built for Developers
7 developer tools for IP subnetting, UUID generation, hashing, Base64 encoding, CRON expressions, and more.
7 free tools
No sign-up · Instant results · 100% free
All Technology Calculators (7 tools)
IP Subnet Calculator
Calculate subnet masks, CIDR notation, network, and broadcast addresses.
Open
UNIX Timestamp Converter
Convert epoch timestamps to human-readable dates and vice versa.
Open
Base64 Encode/Decode
Easily encode text to Base64 or decode Base64 strings to text.
Open
UUID / GUID Generator
Generate bulk Version 4 UUIDs instantly in your browser.
Open
Hash Generator
Generate secure MD5, SHA-1, and SHA-256 hashes instantly.
Open
Password Generator
Generate highly secure, randomized passwords locally in your browser.
Open
Cron Expression Generator
Build and schedule cron expressions with a simple visual interface.
Open
Explore Other Categories
Discover more free tools across all our calculator categories.
Frequently Asked Questions
How do I calculate an IP subnet?
Enter your IP address and subnet mask (or CIDR notation like /24) into our IP Subnet Calculator. It instantly shows you the network address, broadcast address, usable host range, and total hosts.
What is Base64 encoding?
Base64 encodes binary data as ASCII text, commonly used in email attachments, data URLs, and API tokens. Our Base64 Converter encodes and decodes any text or data instantly.
How do I generate a secure password?
Our Password Generator creates cryptographically random passwords of any length. You can include uppercase, lowercase, numbers, and symbols. No data is sent to any server.