ContinueJSA continuity engine for the web.

Local-first. Privacy-first. Dependency-free draft persistence for forms, editors, and wizards.

🔒

Local-First & Privacy-First

Zero tracking, zero telemetry, and zero network calls. All draft state stays inside the user browser storage (IndexedDB).

⚡

Framework Agnostic

Pure vanilla JavaScript core under 10 KB with seamless first-class adapters for React, Vue, and Svelte.

🛡️

Smart Security & Exclusions

Automatically excludes password fields and sensitive data. Optional Web Crypto AES-GCM 256-bit client-side encryption.

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Agentic Ready

Works out of the box with browser AI agents and automated form filling workflows without needing custom integrations.

Why ContinueJS?

Every day, millions of web users lose progress due to accidental tab closures, sudden browser crashes, lost Wi-Fi connections, or misclicked links.

ContinueJS makes losing progress extremely difficult. By acting as an automated persistence layer between user input and local storage, ContinueJS quietly protects user state until it is explicitly submitted or discarded.

import { attach } from '@continuejs/core';

// Persist any form automatically with one line
attach({
  target: document.querySelector('#job-application'),
  id: 'applicant-draft-v1',
});

Key Highlights

Zero Dependencies: Pure TypeScript core running everywhere.
Smart Progress Tracking: Real-time form completion calculation (0% to 100%).
Framework Components: Drop-in <continuejs-banner> and <continuejs-modal> Custom Elements.
Auto Retention: Configurable draft expiration policies (1h, 1d, 7d, 30d, forever).