Feast

Unified feature store for training and real‑time inference

FeatBit

Self-hosted feature flag platform for safe deployments

Feathr

Scalable feature store for unified data and AI engineering

Featureform

Turn existing data pipelines into a collaborative virtual feature store

FeatureHub

Cloud Native feature flags, A/B testing, and remote configuration platform

FeatureProbe

Open source feature management for confident, low-risk deployments

Featurevisor

Git-based feature flags and experimentation for developers

FEDML

Unified ML library for scalable training, serving, and federated learning.

Feedbase

Collect feedback, prioritize issues, and share product updates

FerretDB

MongoDB‑compatible proxy that runs on PostgreSQL as a document database

fgprof

Unified wall‑clock profiler for Go applications with mixed I/O and CPU

Fider

Turn customer ideas into prioritized product roadmaps

Filestash

Universal web file manager for any storage backend

Firecamp

Developer-first multi-protocol API platform with VSCode-inspired experience

Firecrawl

Turn any website into clean, LLM‑ready data instantly

Fission

Kubernetes-native serverless platform for fast, language-agnostic functions

Flagger

Progressive delivery automation for Kubernetes with canary deployments

Flagr

Deliver targeted experiences with feature flags and A/B testing

Flagsmith

Open-Source Feature Flagging and Remote Config Platform

FLAML

Fast, lightweight AutoML and hyperparameter tuning for Python

Flarum

Delightfully simple discussion platform for modern communities

Flexprice

Usage-based metering and billing infrastructure for developers

FlexSearch

Blazing-fast full-text search for browsers and Node.js

Flipper

Beautiful, performant feature flags for Ruby and Rails