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ConfigCat

Dev Utilities Free key (no card)

AuthenticationFree key (no card)
Rate limitForever free: 5 million config downloads and 20 GB traffic per month, 10 flags, 2 environments, unlimited seats; no card required.

Documentation: configcat.com ยท Checked Sep 13, 2026

About

ConfigCat is a feature-flag and remote-configuration service with a genuinely free forever plan that requires no credit card. Free includes 5 million config downloads per month, 20 GB of network traffic, 10 feature flags, 2 environments, 2 products, and unlimited team seats and monthly users. Flags are delivered through a fast global CDN, and SDKs exist for all major platforms. It is one of the most generous free tiers in the feature-flag space.

Details

Free to start. You may need a free key, but no credit card.

Auth: Free key (no card)

Rate limit: Forever free: 5 million config downloads and 20 GB traffic per month, 10 flags, 2 environments, unlimited seats; no card required.

Verified: 2026-09-13

Best for: feature flags remote config small teams

Read the docs Back to catalog

Setup

  1. Sign up free at configcat.com with no credit card.
  2. Create a config and add feature flags.
  3. Copy your SDK key from the dashboard.
  4. Install the ConfigCat SDK for your platform.
  5. Fetch flag values; the SDK caches them from the CDN.
Sign up