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#php
#kotlin
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#rust
#typescript
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Python
Generate Strong Random Password
Build a password using the `secrets` module (CSPRNG) with rejection sampling for unbiased distribution. Use this — NOT random.choice, which is seeded predictably.
@admin
TypeScript
Crypto-Strong Random Password
Generate a strong random password in browser or modern Node. Uses crypto.getRandomValues with rejection sampling for an unbiased distribution.
JavaScript
Shuffle Array (Fisher-Yates)
Randomly shuffles an array in-place using the Fisher-Yates algorithm, which produces a uniformly random permutation. Widely considered the correct way to shuffle — avoids the bias inherent in sort(() => Math.random() - 0.5). Returns the same array reference after shuffling.
Bash
Generate a Random Password
Three approaches: pwgen (purpose-built), openssl (universally available), /dev/urandom + tr (zero deps). Pick by what's installed.
JavaScript
Random Hex Color
Generates a random 6-digit hex colour string. Useful for seeding avatar backgrounds, chart series colours, placeholder UI elements, and testing colour-dependent components. The crypto version produces a more unpredictable result suitable for generating unique palette tokens.
Go
UUID Generation (google/uuid)
`github.com/google/uuid` is the standard UUID library. v4 (random) for IDs, v7 (time-ordered) when you want UUIDs that sort chronologically and play nicely with B-tree indexes.
PHP
Generate Secure API Key
Mint an API key with a recognizable prefix ("sk_live_…") and 32 bytes of crypto-random entropy encoded as URL-safe base64. Stripe-style readable IDs.
PHP
Generate Crypto-Strong Password
Generate a strong random password with configurable length and character sets. Uses rejection sampling to keep the distribution uniform across the chosen alphabet (no biased % alphabetLen).
Bash
Generate UUID
Several portable ways to mint a v4 UUID from the shell — useful for request IDs, idempotency keys, temporary filenames.
TypeScript
Shuffle (Fisher-Yates)
Uniformly shuffle an array in place using the modern Fisher-Yates algorithm. Returns the same array for chaining. Use crypto.getRandomValues for cryptographic uses.
PHP
Random Readable Token
Generate a short, human-readable random token using an alphabet that omits look-alike characters (0/O, 1/l/I). Useful for invite codes, short-lived signin tokens, password reset codes — anything a human might type.