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Abby

Abby is an open-source feature flags, remote config, and A/B testing tool built specifically for developers. It offers fully type-safe SDKs for React and Next.js along with integrated debugging tools to streamline feature deployment.

Abby is the open source alternative to:
Abby screenshot

About Abby

Abby simplifies feature deployment complexity by providing type-safe feature flags, flexible remote configuration, and integrated A/B testing capabilities. Designed for modern tech stacks, it supports SSR and SSG out-of-the-box, offers multiple environments for safe testing, and includes robust devtools for on-the-fly debugging. Its open-source nature ensures transparency and the option for self-hosting, making it a reliable choice for engineering teams at startups and enterprises alike.

Key Features

  • Fully type-safe SDKs for React, Next.js, and more
  • Flexible remote configuration and environment-specific testing
  • Optimized support for SSR and SSG for fast user experiences
  • Built-in devtools and first-party CLI for contextual debugging
  • Reliable fallbacks to reduce downtime risks
  • Open-source with options for self-hosting

Pricing

Free
$0/Free

Start using Abby for free with limited usage to explore its capabilities.

Features:
    Starter
    $12/per Project/month

    Ideal for small projects looking to scale affordably.

    Features:
    • 1,000 Events / month
    • 1 A/B Test
    • 3 Feature Flags / Remote Configs
    • 5 Environments
    Startup
    $89/per Project/month

    Tailored for startups and growing teams needing more capacity.

    Features:
    • 10,000 Events / month
    • 10 A/B Tests
    • 30 Feature Flags / Remote Configs
    • 5 Environments
    Pro

    Reach out for detailed pricing on advanced usage plans.

    Features:
    • 100,000 Events / month
    • 10 A/B Tests
    • 50 Feature Flags / Remote Configs
    • 10 Environments
    Enterprise

    Customized solutions for large enterprises; contact us for details.

    Features:
    • Unlimited Events / month
    • Unlimited Tests
    • Unlimited Feature Flags / Remote Configs
    • Unlimited Environments

    Summary

    Abby delivers an efficient and modern approach to feature flag management with its open-source, fully typed SDKs and integrated devtools. Its capabilities in remote configuration and A/B testing empower developers to test, iterate, and deploy features safely and reliably.

    Adrian
    Created by
    Adrian
    Mar 9, 2025Updated2 min read
    This content was partially generated using artificial intelligence.

    Tool Details

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    Since 2023
    about 1 month ago
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