se the IPv4 Subnet Calculator to quickly and accurately determine the network address, broadcast address, subnet mask, and host range for any given IP address and CIDR notation. Simplify your network planning with this essential tool.
Try the Tool »Easily convert numbers between binary, octal, decimal, hexadecimal, and Base64. Perfect for programmers, students, and anyone working with different numerical systems.
Try the Tool »Clean, instant math calculation tool for arithmetic, trig, logs, and powers.
Try the Tool »Generate RFC 4193 compliant IPv6 Unique Local Address (ULA) prefixes for private networks. Free online tool for creating statistically unique IPv6 address blocks using MAC address input. Perfect for network administrators and DevOps professionals.
Try the Tool »Quickly hide or mask sensitive strings such as emails, IDs, or codes—show only the first and last few characters while keeping data private.
Try the Tool »Instantly convert any text string into ASCII binary representation. Perfect for developers, students, and anyone working with binary data encoding. Simply paste your text and get the corresponding binary code.
Try the Tool »Generate secure one-time passwords (OTPs) instantly with our free online tool. Simple, fast, and no registration required. Enhance your account security now.
Try the Tool »Detect JavaScript keycodes, key values, and modifiers instantly. Find keyCode, code, location properties for any pressed key in real-time.
Try the Tool »Generate random port numbers above 1023 for network applications. Get available ports instantly for testing, development, and server configuration.
Try the Tool »Generate HTTP Basic Authentication headers instantly. Create base64 encoded credentials for secure API access and web authentication.
Try the Tool »Capture photos and record videos instantly with your webcam or camera. Browser-based tool with instant download - no installation required.
Try the Tool »Capture professional website screenshots in multiple formats and resolutions. Free tool with full-page capture, mobile views, and instant download options.
Try the Tool »Calculate square area instantly by entering the side length. Free online tool for geometry calculations, home projects, and educational use.
Try the Tool »Convert area units quickly with our Area Converter. Supports metric, imperial units including square meters, feet, acres, hectares.
Try the Tool »Perform bitwise operations like AND, OR, XOR, NOT, and bit shifts with support for binary, decimal and hexadecimal number systems.
Try the Tool »Convert JSON to TOML quickly and easily. This tool transforms JSON objects into human-readable TOML format, perfect for configuration files in Rust, Python, and Go projects.
Try the Tool »Convert YAML to TOML format with our free online converter. Easily transform configuration files between formats while preserving structure and data. No installation needed.
Try the Tool »Convert TOML to JSON easily with our free online TOML to JSON Converter. Upload files or paste TOML content to instantly transform to JSON format with no installation required.
Try the Tool »Free online TOML to YAML converter tool transforms TOML configuration files to YAML format while preserving structure and data types. Convert instantly with no server upload required.
Try the Tool »Convert between Hz, kHz, MHz, GHz, THz, RPM, BPM, rad/s, and °/s with our free frequency converter. Simple, accurate calculations for engineers and professionals.
Try the Tool »Add IO tools to your favorite browser for instant access and faster searching
Update: Our latest tool was added on Sep 23, 2025
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