Create cryptographically random secrets for APIs and automation using crypto.getRandomValues — output as hex, Base64, or Base64url, with adjustable
byte length (entropy), optional prefix, and multiple independent lines. Everything stays in your browser — nothing uploaded to DroidXP, same local-first approach as
APK Analyzer and APK String Extractor.
More bytes ⇒ higher entropy (bits = bytes × 8).
Store secrets in a vault or environment variables — never commit them to public repos. For human-readable passwords with character sets, use the Password Generator. For opaque tokens in HTTP headers, pair with CORS Header Generator when exposing APIs to browsers.
APIs, webhooks, and server-to-server integrations often need high-entropy random strings — opaque bearer tokens, shared secrets, or identifiers. This page turns random bytes from the Web Crypto API into common encodings so you can paste them into env files or secret managers.
Hex doubles the string length but avoids special characters. Base64 is compact but uses +, /, and = padding. Base64url is widely used for JWTs
and URL-safe tokens. Pick what your stack expects.
Keys are generated locally; preferences use localStorage on this site. DroidXP does not receive your secrets — consistent with how we handle APKs in
APK Analyzer and APK String Extractor.
No. Random bytes are created with crypto.getRandomValues in your browser. Keys are not sent to DroidXP servers for this tool.
No. Secrets are derived from crypto.getRandomValues, which is the appropriate API for unpredictable bytes in modern browsers.
Hex doubles the character count but is easy to read and paste. Base64 is compact but may include +, /, and padding. Base64url is URL-safe and common for tokens — match what your API or framework expects.
Longer keys mean more entropy. 16 bytes (128 bits) is a common minimum for random tokens; 32 bytes (256 bits) is typical for high-value secrets. Align with your auth library and threat model.
It is prepended to each encoded secret as plain text — useful for human-readable schemes (e.g. sk_live_). It does not add cryptographic strength; the random part still comes from the byte length you choose.
Clipboard data can be read by other apps or managers on some systems. Clear after use on shared machines, avoid untrusted paste targets, and prefer your secrets manager’s generate-and-store flow when possible.
The Password Generator builds human-typable passwords from character sets. This tool outputs raw random bytes in encodings suited for machine tokens and API keys.
JWT signing depends on your algorithm — often asymmetric keys or symmetric secrets. Use these strings only where your docs call for a shared secret or opaque token; not as a drop-in for RSA/EC key pair generation.
Each line is independent random output. Collisions are astronomically unlikely at typical lengths; regenerate anytime you need a fresh secret.
Yes for production: plan rotation, overlap periods, and revocation. Treat generated keys like production secrets — restrict who can see them and audit usage.
Yes — processing stays in your browser session like our Android APK tools; DroidXP does not receive your APK or your generated keys.