Lemonade Password Manager

Product Introduction

1. Definition: Lemonade Password Manager is a privacy-first, Progressive Web App (PWA) password manager designed for developers. It securely stores passwords, API keys, .env files, and sensitive documents using AES-256-GCM authenticated encryption.
2. Core Value Proposition: It eliminates enterprise software complexity by offering a unified encrypted vault for credentials developers can’t commit to Git, prioritizing simplicity, cross-platform accessibility, and developer-specific workflows.

Main Features

1. Env Vault:

   • How it works: Users drag-and-drop project folders; Lemonade scans for .env, .npmrc, credentials.json, and AI context files (e.g., CLAUDE.md). Secrets are encrypted server-side using AES-256-GCM, tracked with version history, and exportable to .env format.
   • Technologies: File system parsing, AES-256-GCM encryption with Galois/Counter Mode for integrity, and client-side decryption.

2. AES-256-GCM Encryption:

   • How it works: All data (passwords, notes, files) undergoes server-side encryption with AES-256-GCM, combining confidentiality and authentication. Decryption occurs client-side via browser extensions or PWA.
   • Technologies: NIST-approved AES-256, Galois/Counter Mode for tamper-proofing, and PBKDF2 key derivation.

3. Browser Extensions & PWA:

   • How it works: Chrome and Firefox extensions enable one-click autofill for logins. The installable PWA (no desktop app) syncs data offline using service workers and IndexedDB.
   • Technologies: WebExtensions API, FIDO2 WebAuthn for biometric logins, and service workers for offline functionality.

4. TOTP Authenticator & Passkeys:

   • How it works: Generates time-based one-time passwords (TOTP) via QR scans. Supports passwordless FIDO2 logins using device biometrics (fingerprint/face recognition).
   • Technologies: RFC 6238 TOTP algorithm, FIDO2 CTAP for hardware security key integration.

5. Secure Sharing & Emergency Access:

   • How it works: Share credentials without exposing plaintext via encrypted access grants. Designate emergency contacts with configurable waiting periods (e.g., 24–72 hours) for vault access.
   • Technologies: End-to-end encryption (E2EE) for shared items, asymmetric cryptography for access delegation.

Problems Solved

1. Pain Point: Fragmented secret management (passwords in managers, .env files locally) leading to security risks and workflow inefficiencies.
2. Target Audience:
   • Developers needing unified credential/.env storage.
   • DevOps engineers managing API keys across projects.
   • Teams requiring secure password sharing without plaintext exposure.
3. Use Cases:
   • Auto-detecting/secrets in Git-ignored project files during onboarding.
   • Generating TOTP codes alongside associated login credentials.
   • Emergency vault access during account lockouts or team transitions.

Unique Advantages

1. Differentiation vs. Competitors:
   • Unlike 1Password or Bitwarden, Lemonade’s Env Vault automates secret detection in project folders—solving a developer-specific gap.
   • PWA-only approach reduces bloat, enabling instant updates without app stores.
2. Key Innovation:
   • Env Vault’s version tracking: Monitors changes to secrets (e.g., rotated API keys) with exportable history, preventing configuration drift.
   • Privacy-respecting leak detection: Identifies reused passwords locally without transmitting data externally.

Frequently Asked Questions (FAQ)

1. Is Lemonade Password Manager secure for storing API keys?
   Yes, Lemonade uses AES-256-GCM encryption with client-side decryption, ensuring API keys and .env files remain encrypted at rest and in transit.

2. How does the Env Vault handle different project structures?
   The Env Vault scans nested directories for 50+ file patterns (e.g., .env*, firebase.json), preserving folder hierarchy and enabling one-click exports to original formats.

3. Can teams use Lemonade for shared credentials?
   Teams securely share passwords/notes via encrypted access grants, with customizable permissions and audit trails for enterprise compliance.

4. Does Lemonade support passwordless login?
   Yes, FIDO2 WebAuthn passkeys enable biometric logins on compatible devices (e.g., YubiKey, Touch ID), eliminating master password dependencies.

5. How does Lemonade’s pricing compare to competitors?
   At $2.99/month for unlimited items and Env Vault access, Lemonade undercuts rivals (e.g., 1Password’s $4.99/month) while specializing in developer workflows.