Feature flags with a mountable UI, evaluated in-process
No ratings yet# Gemfile
gem "flipper"Flipper vs Sidekiq Web
Flipper and Sidekiq Web both sit in operations, but they solve different parts of it.
Thin comparison — they do not replace the same product. Kept readable, left out of search.
Sidekiq Web
Better knownThe Sidekiq queue dashboard, mounted into your app
No ratings yet# Gemfile
gem "sidekiq"What Flipper does
Feature flags that live in your own datastore, with a mountable UI for changing them. Boolean, actor, group and percentage-of-time gates Adapters for Active Record, Redis and others A web UI mounted in your app Flag checks that are a local lookup, not a network call A hosted flag service either adds a network hop to every check, or ships an SDK that caches and then eventually-consistently diverges. Flipper reads from a table you are already querying.
Read the full Flipper listing →
Why you might pick it
- It also replaces LaunchDarkly.
- Its licence is MIT, which may matter more than the feature list.
What Sidekiq Web does
Sidekiq ships a Rack application for monitoring queues. Mount it and you have a job dashboard. Live queue depths and processing rates The retry set, the scheduled set and the dead set Retry and delete, per job or in bulk Per-process and per-thread visibility An unauthenticated /sidekiq lets anyone read your job arguments and delete your queues. The authenticate block is not optional.
Read the full Sidekiq Web listing →
Why you might pick it
- It also replaces Hosted job monitoring.
- It has substantially more adoption — 13,400 stars against 3,900.
- Its licence is LGPL-3.0 (OSS edition), which may matter more than the feature list.
Side by side
Rows where the two differ are marked.
| Flipper | Sidekiq Web | |
|---|---|---|
| Category | Operations | Operations |
| Replaces (differs) | LaunchDarkly | Hosted job monitoring |
| License (differs) | MIT | LGPL-3.0 (OSS edition) |
| GitHub stars (differs) | 3900 | 13400 |
| Gem (differs) | flipper | sidekiq |
| Mounts at (differs) | /flipper | /sidekiq |
| Member rating | — | — |
What each one gets off your invoice
Both replace
Nothing unique here.
Only Flipper
Only Sidekiq Web
Questions
- What is the difference between Flipper and Sidekiq Web?
- Flipper and Sidekiq Web both sit in operations, but they solve different parts of it.
- Can I mount both Flipper and Sidekiq Web in the same Rails app?
- Technically yes — engines mount at different paths — but they overlap, so running both usually means two sets of tables doing one job. Pick one.