Start free
// Instead of hardcoded values...
const heroText = "Welcome!";  // Requires deploy

// Use dynamic config...
const heroText = grain.getConfig('hero_text');

// Update instantly from dashboard
// No code deployment required

What it does.

Instant Updates

Change text, colors, or features instantly without deployments.

Cache-First

Instant load from cache with background refresh. Zero network wait.

Personalization

Show different values based on user plan, location, or attributes.

Feature Flags

Enable, disable, or gradually roll out features without code.

Dynamic Content

Update any text, labels, or colors for A/B testing.

Auto-Refresh

Background refresh at configurable intervals from 30s to hours.

Why it is different.

Zero Latency

Cache-first architecture delivers instant config access.

User-Specific

Personalized values based on user properties automatically.

Kill Switch

Disable broken features instantly without deployments.

Everything included.

Synchronous getConfig() for instant access
Async getConfigAsync() for fresh values
localStorage caching for persistence
Change listeners for reactive updates
User-specific personalization
Configurable auto-refresh intervals
Dashboard UI for config management
Default values for offline scenarios

Who uses it.

Feature Flags

Toggle features without deployments. Roll out gradually or kill instantly.

Product, Engineering

A/B Testing

Test variants and measure performance before full rollout.

Growth, Product

Content Management

Update messaging without code changes or engineering involvement.

Marketing, Business

Personalization

Deliver tailored experiences based on user attributes at scale.

Product, Growth

Questions.

Changes are available immediately on the server. Clients receive updates on their next background refresh cycle, which you can configure from 30 seconds to several hours depending on your needs.