IPv4 Subnet Calculator
Network masks, wildcards, and host ranges.
Codepoint, name, block.
Paste this into any page — the live tool appears with a credit link back here.
Inspect every character for codepoint, UTF-8 bytes, and plane/block.
🔒 This tool runs entirely in your browser. Nothing is uploaded or stored.

Background reading: Unicode Inspector on Wikipedia. More: all security & network.
Open the Unicode Character Inspector and use the controls in the workspace below: codepoint, name, block. Results appear instantly in your browser, with nothing to install, sign up for, or pay for.
Yes. The Unicode Character Inspector is completely free, like every tool in the PrimeFreeTools library. There are no accounts, subscriptions, or usage limits.
No. The Unicode Character Inspector runs with JavaScript in your browser, so what you enter never leaves your device and nothing is stored on a server.
Inspect every character for codepoint, UTF-8 bytes, and plane/block. You will find it grouped under Security & Network together with 13 other free tools on the PrimeFreeTools homepage.
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Sep 17, 2026
Codepoint, name, block.
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