DevBlacksmith

Developer tools — tokens, keys, hashes, colors & more

API Key Generator

Number of API Keys (1-500): API Key Length (bits): Type of Characters: Prefix (optional): Separator (if more than 1):

Strength:

Strong

UUID v4 Generator

Quantity:

JWT Secret Generator

Length (bytes): Format:

Random Token Generator

Length: Charset: Prefix:

Hex Key Generator

Size: Format:

Base64 Encoder / Decoder

Input:

Bcrypt Salt Generator

Cost factor (rounds):

SHA Hash Generator

Input text: Algorithm:

cURL Command Generator

Method: URL: Auth Type: Token / Key: Content-Type: Body (JSON):

JSON Payload Generator

Template:

Common Regex Patterns

Category: Test string:

Fake Data Generator

Type: Quantity: Mode: Locale:

Color Palette Generator

Generate Tailwind-style color scales with WCAG contrast

Reading contrast badges: W = on White background B = on Black background AA = passes WCAG AA (4.5:1) — safe for all text AA+ = passes AA Large (3:1) — safe for large/bold text only Fail = insufficient contrast — text will be hard to read

Base Color

Palette Name