dif Open-Source Feature Flags and Experiments

Explore this developer service’s ongoing no-cost allowance, restrictions and official documentation before deploying.

INCLUDED FREE ALLOWANCE

MIT-licensed local CLI and zero-dependency SDK for file-based feature flags and A/B experiments: store Markdown flag definitions in your repository, validate them, generate a typed TypeScript client and evaluate assignments locally without a hosted control plane.

View official documentation

Plan details

What do these plan and deployment labels mean?

Plan: Ongoing free allowance
Deployment model: Local / embedded
Credit card: Not required
Commercial use: Allowed
Added to directory (UTC): 2026-10-31
Last checked: 2026-10-31

Important restrictions

The free CLI/SDK has no signup or license fee, but you provide your own application hosting, CI and analytics. Optional dif.sh Cloud connection and cloud analytics are separate services that may have charges; do not confuse the local MIT software with a free hosted analytics tier. The project is relatively new and APIs may evolve.

View official documentation

Independent community listing, not affiliated with the provider. Always check the latest billing policy and quotas before enabling paid usage.