flippercloud/flipper
🐬 Beautiful, performant feature flags for Ruby. observed · 2026-08-28
Health v2 · maintenance only
89/100
- Activity 99
- Release rhythm 71
- Longevity 100
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-03. Adoption (stars, forks) is never an input.
- gap_med: 61.0
- age_days: 5155
- days_rel: 114
- days_push: 7
- n_releases_24m: 9
Adoption not part of the score
3965 stars · 440 forks observed · 2026-08-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded
Flipper is an open-source Ruby gem providing performant feature flags for Ruby and Rails applications, with support for enabling features per actor, group, percentage of actors, or percentage of time. It works with pluggable storage adapters (ActiveRecord, Redis, Mongo, Moneta, Sequel) and offers an optional web UI and hosted Flipper Cloud service.
Use cases
- manage feature flags in a rails app
- gradually roll out a new feature to a percentage of users
- turn off a broken feature in production without redeploying
- give beta users early access to features
- run a/b tests by toggling features per user group
- self-host a feature flag system for ruby services
When to choose
- your application is written in Ruby or Rails
- you want feature flags backed by your existing datastore (Postgres, Redis, Mongo, etc.)
- you need percentage rollouts, actor/group targeting, or instant kill switches
- you want a free, self-hosted option with an optional web UI
When to avoid
- your stack is not Ruby-based (Flipper Cloud only supports Ruby apps)
- you need a language-agnostic, centralized flag service with SDKs for many platforms
- you require advanced audit history, permissions, and multi-environment sync without paying for the hosted Cloud tier
Facets
library · maturity stable
feature-flags configuration-management middleware web-development backend developer-tools apis ruby self-hosted feature-flags feature-toggles rails gradual-rollout a-b-testing kill-switch open-core web-server
9 sources
- readme: https://github.com/flippercloud/flipper · fetched 2026-08-28 · 413bd0ee7cda
- homepage: https://www.flippercloud.io/docs · fetched 2026-08-29 · 60cd110e6c71
- site_page: https://www.flippercloud.io/about · fetched 2026-08-29 · 2fc22489c6a1
- site_page: https://www.flippercloud.io/docs/uses · fetched 2026-08-29 · 5b64161583f7
- site_page: https://www.flippercloud.io/docs/get-started · fetched 2026-08-29 · 482358592120
- site_page: https://www.flippercloud.io/docs/adapters · fetched 2026-08-29 · 7527c92b584e
- site_page: https://www.flippercloud.io/docs/features · fetched 2026-08-29 · 3c7f7ae6df12
- site_page: https://www.flippercloud.io/product · fetched 2026-08-29 · 7a4bf21d45c1
- site_page: https://www.flippercloud.io/pricing · fetched 2026-08-29 · 1b59f6db5355
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| flippercloud/flipper | main | 89 |
For agents
markdown · JSON · MCP: product_card(name="flippercloud/flipper")
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem