LaunchDarkly
LaunchDarklyExternal reviews
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Instant Kill Switch Control Without Redeploys—A Production Safety Net
What do you like best about the product?
The best part is the immediate 'Kill Switch' capability. If a new feature causes a spike in errors or crashes a service, we can disable it in under 200ms without having to redeploy code or restart applications. It’s the ultimate safety net for our production environment.
What do you dislike about the product?
My main concern is the inherent dependency risk. Because our release process is so heavily reliant on LaunchDarkly, any latency or outage on their infrastructure can impact our ability to manage features in real-time. We saw this firsthand during a recent AWS outage; because LD’s flag evaluation was affected, it trickled down to our end users. It serves as a reminder that you have to be extremely intentional about your 'fallback' values in the code to ensure the app remains functional even if the flagging service is unreachable.
What problems is the product solving and how is that benefiting you?
Operational Peace of Mind: You can ship code at 2 PM on a Friday because you know the feature is hidden behind a flag. If anything breaks, you have a 200ms kill switch rather than a 30-minute rollback process.
The "Big Bang" Release Risk: Traditionally, deploying code meant releasing it to everyone at once. If there was a bug, you had to scramble to roll back the entire deployment.
The "Big Bang" Release Risk: Traditionally, deploying code meant releasing it to everyone at once. If there was a bug, you had to scramble to roll back the entire deployment.
Easy Feature Flag Management with Granular Targeting Options
What do you like best about the product?
LaunchDarkly makes it very easy to configure and manage feature flags for our software. The wide variety of targeting options and flag variations allow us to easily roll out features at a very granular level.
What do you dislike about the product?
The wide amount of customization can make the simple cases of flag configuration feel a little overwhelming at first. Takes some time to get used to the UI and terminology.
What problems is the product solving and how is that benefiting you?
We put all our new features behind feature flags and gradually roll them out to customers, LaunchDarkly makes this simple. We also have a lot of flags we use for troubleshooting purposes that help with customer support cases.
Effortless Feature Testing with LaunchDarkly
What do you like best about the product?
I really like LaunchDarkly for its easy-to-use interface, which makes targeting certain user segments a breeze. It's super convenient for confirming that the flag values are being served to users using the evaluations tab. Plus, the initial setup was very easy, which I really appreciated.
What do you dislike about the product?
There seems to be a bug when you clone a flag that does not copy the full targeting configuration for the previous flag and you get an error that says 'Too many requests'.
What problems is the product solving and how is that benefiting you?
I use LaunchDarkly for releasing FE web features, allowing protected testing in production environments.
Streamlined Feature Management, Boosts Product Releases
What do you like best about the product?
I like LaunchDarkly's easy-to-use interface. It took a minute to learn, but once you get the hang of it, it's easy. I appreciate having normal names for flags along with code-names, so our CRM can display which flags a customer is part of without it looking like code. I also like the segments feature because I can group customers into a segment and add them to feature flags, ensuring I've got them all. If needed, I can add a customer to the segment without having to edit a ton of different flags.
What do you dislike about the product?
I find it a bit annoying that when a new flag is created, we always have to name the true/false values. They used to be labeled enabled/disabled by default, so half our flags are one or the other. Also, when you turn it on, it's on for everyone by default. For our company, we usually do the opposite, so I'm always editing that right at the start to avoid accidentally turning it on for everyone.
What problems is the product solving and how is that benefiting you?
LaunchDarkly manages all feature flags, replacing manual code updates and a home-grown tool. It lets us control beta access, roll back features if needed, and handle product releases smoothly. Without it, managing features would be much harder, especially with bugs.
Easy-to-Navigate UI with Flexible Grouping and Time-Saving Change Approvals
What do you like best about the product?
I like how easy it is to navigate the UI, and that it lets me group flags, rollouts, and other categorizable resources however I want. It can be as simple or as complex as I need, depending on what I’m trying to do.
The change request approval system has been the biggest good change that I've used. It saves a lot of time that would otherwise be spent on private DMs on Slack.
The change request approval system has been the biggest good change that I've used. It saves a lot of time that would otherwise be spent on private DMs on Slack.
What do you dislike about the product?
I'm not sure if it's a browser issue (I use Firefox), but sometimes pages load but the components themselves take some time to get rendered. I've also encountered a few hiccups with the search feature when I'm searching for specific flags; I have to be case-sensitive sometimes when I search for flags. Maybe it would be better if it was a bit more relaxed.
What problems is the product solving and how is that benefiting you?
Managing a huge number of feature flags through a clean UI for different environments (dev, testing, prod, ...etc.) save me a lot of time. I can even track and monitor evaluations for flags over time which helped me in debugging some production issues with ease. An incident that might take me a few hours to find its root cause now only takes 15-30 minutes through tracking flag evaluations on Launch Darkly.
Feature Flag Management with LaunchDarkly
What do you like best about the product?
I think the UI of LaunchDarkly is just very clean, simple, and easy to use. Generally, it's really good. I love the targeting rules; you're able to just grab a random list of items from your DB or something, a bunch of IDs, and paste it in to create a new group yourself. Our LaunchDarkly is integrated with GitHub, so when we add flags to GitHub, it automatically creates them in LaunchDarkly. Overall, I've been very happy with LaunchDarkly.
What do you dislike about the product?
Sometimes in LaunchDarkly it's not clear which context keys I should be using (this is moreso of an issue with our management rather than the product) BUT it would be nice to have these auto generated based on which contexts are currently being provided to the flag in evaluations instead of some master list of context keys.
What problems is the product solving and how is that benefiting you?
LaunchDarkly lets me roll out features gradually, test on a small user set first, and minimizes launch risks.
Flexible Deploys, Controlled Releases—No More Midnight Big Bangs
What do you like best about the product?
LaunchDarkly allows us to push code to production whenever it's finished (the deploy), even if the feature isn't ready for the public. The business side (Product Managers or Marketing) can then choose the exact moment to "turn it on" (the release). This eliminates the need for massive "Big Bang" releases at midnight.
What do you dislike about the product?
Because it’s so easy to create flags, teams often suffer from Flag Rot.
What problems is the product solving and how is that benefiting you?
The Problem: Developers often have to wait for "Release Day" to merge their code, or they spend hours in "merge hell" because their feature branch has lived too long away from the main branch. The Benefit: It enables Trunk-Based Development. You can merge unfinished code into the main branch every day, safely hidden behind a flag. This significantly increases your Deployment Frequency (DORA metric) and eliminates the stress of massive, infrequent releases.
Enabling Shipping to Production Much Faster
What do you like best about the product?
It is so useful in enabling developers and empowering them to ship faster.
What do you dislike about the product?
Once a flag is in, it takes time to clean up and sometimes flags are left in code for ever.
What problems is the product solving and how is that benefiting you?
It is so useful in allowing me to confidently deploy to production without having to worry about breaking things. I've worked at places that didn't have a system like this in place and can never go back.
Scalable, Reliable, and User-Friendly with Room for More Features
What do you like best about the product?
I really appreciate the documentation in LaunchDarkly because it's very easy to understand. This clarity is due to the UI and the writing style, including the tone of voice. I find it easy to reference quickly, thanks to the effective search and discovery options within the documentation. This helps reduce the time it takes for me to find the content I need.
What do you dislike about the product?
I would like more features on the basic plan, for example to be able to provide application (instead of user) keys. I don't agree that this workflow is limited to enterprise level customers.
What problems is the product solving and how is that benefiting you?
I use LaunchDarkly for setting feature flags to enable specific product parts and trigger pipelines. It's scalable, reliable, and its documentation is easy to reference, saving time.
Intuitive UI with Quick Feature Rollout
What do you like best about the product?
I like how intuitive the LaunchDarkly UI is and appreciate being able to do percentage rollouts. It's very quick to reflect my changes, for example, if I change the serving, it reflects immediately. Additionally, I found it very easy to set up feature flags.
What do you dislike about the product?
I think making it easier to delete versions.
What problems is the product solving and how is that benefiting you?
I use LaunchDarkly for feature flags, which helps me roll out features and do shadow serving models. The intuitive UI and percentage rollout feature are great, and changes reflect very quickly.
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