Feature Flags Tools
Get told when a new site picks a Feature Flags tool.
Stackdar watches every launch we detect and sends you the ones that ship with anything in Feature Flags, your competitors' tools included, by email, Slack or webhook. On every plan, from £15 a month.
See how alerts workThe most-adopted feature flags tool we track is Statsig (8,681 sites). We've detected 14 feature flags tools across 11,719 public sites.
Feature Flags tools we've detected
| Tool | 90‑day | Sites |
|---|---|---|
Statsig
site ↗
Feature flags + experiments + product analytics.
|
8681 | |
GrowthBook
site ↗
Open-source feature flagging and A/B testing platform.
|
1998 | |
Unleash
site ↗
Open-source feature flag and feature management platform
|
775 | |
LaunchDarkly
site ↗
Enterprise feature flag and experimentation platform for progressive software delivery.
|
432 | |
Flagsmith
site ↗
Open source feature flag and remote config service.
|
33 | |
Make This Better
site ↗
Feedback-capture widget that sends user screenshots, DOM and console context to coding agents.
|
12 | |
Versuch
site ↗
Feature flag and rollout targeting platform with a server-resolved rules API.
|
4 | |
Hackle
site ↗
A/B testing, feature flag and experimentation platform for web and mobile products.
|
3 | |
|
ConfigCat
Feature flag management service for controlled feature rollouts and A/B testing.
|
2 | |
Hypertune
site ↗
Feature flag, A/B testing, and configuration platform.
|
2 |
Showing top 10 of 14 feature flags tools by adoption. 4 more not shown.
The StackScope API serves every feature flags tool and the launches using each, filterable and exportable, from £15 a month.
Launches using Feature Flags tools
| Launch | Launched | Score |
|---|---|---|
| Harness by Autonomous | Oct 16, 2026 | 7.6 |
| Lucid | Oct 14, 2026 | 7.1 |
| Kudos 3.0 | Oct 12, 2026 | 7.4 |
| Ai | Oct 11, 2026 | 9.1 |
| onefit.ai | Oct 11, 2026 | 8.7 |
| Walrus Console | Oct 7, 2026 | 7.2 |
Often built with
Categories the feature flags sites we track also commonly use: