💻 Developer Tools

JSON formatter, regex tester, Base64, and more coding utilities

7 tools available

• {} JSON Formatter

  Format, validate, and beautify JSON data instantly. Free online JSON formatter with syntax highlighting and error detection.

• 🔐 Base64 Encoder/Decoder

  Encode text to Base64 or decode Base64 strings instantly. Swap between modes with one click.

• .* Regex Tester

  Test regular expressions with live match highlighting, group capture display, and flag toggles.

• #️⃣ UUID Generator

  Generate random UUIDs (v4) instantly. Choose format, generate in bulk, and copy with one click.

• 🔑 Hash Generator

  Generate SHA-1, SHA-256, SHA-384, and SHA-512 hashes from any text instantly using Web Crypto API.

• 🌐 IP Subnet Calculator

  Calculate subnets visually with a CIDR slider, binary bit visualization, and full network details. Copy any result instantly.

• 🔢 Binary Calculator & Converter

  Binary math calculator — convert between decimal, binary, hex, and octal. Toggle bits visually and perform bitwise operations.