Prefab
UnclaimedDeveloper Rocket Fuel for Feature Flags, Dynamic Logging, and Secret Management.
Visit WebsiteFreemiumVisit Website
Tracked since2026
0 reviews trackedThe Bottom Line
Entry price
Free plan available, paid tiers above
Biggest pro
Developer-focused experience with powerful editor integrations.
Biggest con
AB Testing Analysis is not explicitly detailed as an in-tool feature.
TL;DR - Prefab
- Manages feature flags, dynamic logging, and secrets from a single platform.
- Offers developer-focused tools like CLI and editor plugins for real-time control and visibility.
- Provides usage-based pricing and enterprise-grade features like audit logging and multi-context targeting.
Pricing: Free plan available
Best for: Growing teams
What is Prefab?
Prefab provides a comprehensive platform for managing feature flags, dynamic logging, and secrets, designed specifically for developers. It aims to streamline development workflows by offering real-time configuration changes, robust editor integrations, and detailed observability into flag usage. The platform helps engineering teams maintain control over their applications, enabling safe rollouts, A/B testing, and instant debugging without redeployments.
Prefab is built for engineering teams of all sizes, from startups to large enterprises, who need granular control over their application's behavior in production. It addresses common pain points like stale feature flags, costly debug logging, and insecure secret sharing, allowing developers to stay in their flow and focus on building. Its developer-first approach emphasizes ease of use, powerful tooling, and transparent, usage-based pricing.
Available on: Web
Pros & Cons
Pros
- Developer-focused experience with powerful editor integrations.
- Combines feature flags, dynamic logging, and secret management in one tool.
- Real-time updates and observability into flag usage.
- Fair, usage-based pricing model.
- Robust enterprise features like audit logging and advanced permissions available at scale.
Cons
- AB Testing Analysis is not explicitly detailed as an in-tool feature.
- Some advanced features like Business Support SLA and 2yr Audit Log Retention are only available on higher tiers.
Key Features
Unlimited Feature Flags & UsersDynamic Logging (toggle log levels instantly)Secret Management (CLI-based, zero-knowledge)CLI & Editor Plugins (VS Code, IntelliJ, etc.)Real-time Flag Evaluation Data & VisualizationsPersonal Overrides for Local DevelopmentMulti-Context Targeting (user, team, region, availability zone)Reusable Segments for Flag Rollouts
Pricing Plans
Free TrialPricing checked May 28, 2026
Free
$0
- Unlimited Flags & Users
- Evaluation Charts
- Dynamic Logging
- Up to 5 Server Connections
- Up to 1.5M Requests (~5k MAU)
- SSO with Google
Pro
$99 / month
- Everything in Free
- Up to 100 Servers
- Up to 15M Requests (~50k MAU)
- SAML (Okta, GSuite)
Enterprise
$499 / month
- Everything in Pro
- Up to 500 Servers
- Up to 300M Requests (~1M MAU)
- 99.99 Uptime SLA
- Business Support SLA
- 2yr Audit Log Retention
- Full Pricing & Packaging Matrix
How Prefab's pricing compares
At $99/mo, Prefab is mid-range of its 2 direct competitors ($10 to $750/mo across the set).
Entry paid plan, monthly. Pricing checked May 28, 2026.
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Prefab FAQ
How does Prefab's editor integration enhance the developer experience with feature flags?
Prefab's editor plugins allow developers to create or toggle feature flags directly from their IDE, autocomplete flag names, and view real-time evaluation data by hovering over a flag. It also supports 'personal overrides' for local testing without affecting other developers' environments.
Can Prefab help manage log levels across different technology stacks?
Yes, Prefab's dynamic logging feature allows users to instantly toggle log levels across their entire stack, including environments running Rails, Node, and Typescript, enabling cost savings by only activating low-level logs when necessary for debugging.
What is the 'personal override' feature and how does it benefit local development?
The 'personal override' feature allows individual developers to toggle a feature flag specifically for their local development environment. This ensures that testing flag behavior locally does not impact the flag's state or behavior for other team members or in other environments.
How does Prefab ensure the security of shared secrets across projects and languages?
Prefab provides CLI-based secret management with a zero-knowledge approach, allowing developers to securely share secrets between different projects and languages without additional cost, ensuring sensitive information remains protected.
What kind of observability does Prefab offer for feature flag usage in production?
Prefab provides real-time visualizations and charts showing how flags are being evaluated in production. Users can dive deeper to break down these charts by which rule matched, offering precise insights into flag behavior and helping diagnose suspicious activity.
How does Prefab differentiate its feature flag solution from competitors like Flagsmith or ConfigCat?
Prefab distinguishes itself by offering multi-context targeting, real-time updates, dynamic log levels, and dynamic configuration for secrets and environment variables, which are not universally available in other solutions. It also provides a comprehensive user data page and quick assignment capabilities, along with a usage-based pricing model.
Source: prefab.cloud