Open Source Packages
Libraries, frameworks, tools, and SDKs used by the apps in this directory — scored the same way as the apps themselves.
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cryptography
The standard cryptographic library for Python, pairing safe high-level recipes with low-level primitives backed by Rust and OpenSSL.
PyJWT
A Python implementation of RFC 7519 for encoding, decoding, and verifying JSON Web Tokens.
otplib
TypeScript-first TOTP and HOTP library with a pluggable crypto/base32 architecture for Node, Bun, Deno, and browsers.
bcrypt (Python)
A Python library for secure password hashing using the bcrypt algorithm with an adjustable work factor
itsdangerous
A small Python toolkit for cryptographically signing data so you can trust it hasn't been tampered with when it comes back from an untrusted client.
OTPAuth
HOTP and TOTP one-time password library for Node.js, Deno, Bun, and browsers
argon2-cffi
Secure, high-level password hashing for Python using Argon2
pyOpenSSL
A Python wrapper around the OpenSSL library for TLS connections and certificate handling
PyOTP
Python library for generating and verifying TOTP/HOTP one-time passwords for 2FA
speakeasy
A Node.js library for generating and verifying RFC 4226 (HOTP) and RFC 6238 (TOTP) one-time passcodes for two-factor authentication.
pycryptodome
A self-contained, low-level Python library of cryptographic primitives — ciphers, hashes, MACs, and public-key algorithms — with no OpenSSL dependency.
@node-rs/argon2
Native Rust binding for Argon2 password hashing in Node.js
hvac
Python client library for HashiCorp Vault's secrets, authentication, and system-backend REST APIs.
service-identity
Verifies that a pyOpenSSL or cryptography TLS certificate is genuinely valid for the hostname, IP, or SRV name you intended to connect to.
python-rsa
Pure-Python RSA library for key generation, PKCS#1 encryption, decryption, signing, and verification, with no C extensions required.
xxhash
Fast Python bindings for the xxHash non-cryptographic hashing algorithm
asn1crypto
A fast, pure Python library for parsing and serializing ASN.1 structures with a pythonic, high-performance API.
Certbot
EFF's command-line tool to obtain and auto-renew free Let's Encrypt TLS certificates
PyNaCl
Python bindings to libsodium for authenticated encryption, digital signatures, hashing, and password-based key derivation
node-acme-client
A simple, unopinionated Node.js client for the ACME protocol, automating certificate issuance from Let's Encrypt and other CAs.
python-gnupg
A Python API for GnuPG — generate keys, encrypt, decrypt, sign, and verify data from your code.
Aliyun Python SDK KMS
Alibaba Cloud Key Management Service (KMS) client for Python.
Nostr SDK
A full-featured Rust SDK for building high-performance clients and in-process relays on the Nostr protocol
crypto-hash
Tiny isomorphic hashing module that uses the native crypto API in Node.js and the browser.
