Network & encoding hub

CIDR、进制、Query String、cURL 转代码与 URL/Base64 编码等本地工具，方便排查地址与请求字符串——不会代发 HTTP 请求。

Related tools

CIDR calculator — IPv4 CIDR ranges, masks, hosts, and hex forms
Number base converter — Convert between binary, octal, decimal, and hex (BigInt)
Query ↔ JSON — Convert query strings and JSON objects both ways
cURL to code — Convert a cURL command to fetch, Python requests, or Go locally
URL Encode / Decode — Percent-encode or decode URL components.
Base64 Encode / Decode — Encode or decode Base64 text locally.
Hex / Binary / Base32 — 在浏览器本地互转文本与 Hex、Binary、Base32。UTF-8 处理、不上传，适合调试与编码对照。
HTTP Status / MIME Lookup — Look up HTTP status codes, methods, headers and MIME types