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LaunchDarkly vs PostHog
Trust Score comparison · March 2026
VS
Trust Score Δ
1
🏆 LaunchDarkly wins
Signal Comparison
680k/wkWeekly npm downloads400k / wk
220GitHub commits (90d)500 commits
2.8kGitHub stars24k ★
6kStack Overflow questions3k q's
EnterpriseCommunity healthVery active
LaunchDarklyPostHog
Key Differences
| Factor | LaunchDarkly | PostHog |
|---|---|---|
| License | Proprietary | MIT |
| Language | TypeScript / Python | TypeScript / Python |
| Hosted | Yes | Self-hosted |
| Free tier | — | — |
| Open Source | — | — |
| TypeScript | ✓ | ✓ |
Pick LaunchDarkly if…
- Gradual feature rollouts to % of users or specific segments
- A/B testing and experimentation at scale
- You need instant flag evaluation without redeploying
Pick PostHog if…
- Product analytics + feature flags in one tool
- You want Mixpanel-quality analytics self-hostable
- Building user funnels, retention analysis, and A/B tests
Side-by-side Quick Start
LaunchDarkly
import * as ld from '@launchdarkly/node-server-sdk';
const client = ld.init(process.env.LAUNCHDARKLY_SDK_KEY!);
await client.waitForInitialization();
const context = { kind: 'user', key: 'user-123', email: 'alice@example.com' };
const showNewFeature = await client.variation('new-checkout-flow', context, false);
if (showNewFeature) {
// Render new checkout
} else {
// Render old checkout
}PostHog
import posthog from 'posthog-js';
posthog.init(process.env.NEXT_PUBLIC_POSTHOG_KEY, {
api_host: process.env.NEXT_PUBLIC_POSTHOG_HOST ?? 'https://us.i.posthog.com',
person_profiles: 'identified_only',
});
posthog.capture('user_signed_up', { plan: 'pro', source: 'google' });Community Verdict
Based on upvoted notes🏆
LaunchDarkly wins this comparison
Trust Score 82 vs 81 · 1-point difference
LaunchDarkly leads on Trust Score with stronger signal data across downloads and community health. That said, the other tool is worth considering if your use case matches its specific strengths above.