5 best feature-flag tools for Express.js
Feature flags have become an essential tool for Express.js developers, enabling smoother rollouts, A/B testing, and rapid experimentation. With various options available, choosing the right feature-flag solution can be daunting. In this article, we’ll dive into the top 5 feature-flag solutions for Express.js developers, comparing their pricing, ease of use, and key features to help you make an informed decision.
Our top pick#1 Tggl.io
For the first place we picked Tggl for its great Express.js SDK and easy to use interface. It probably has the easiest setup process of this list, you simply install the SDK and instantiate it with you API key to get going.
Features
For those just starting out with feature flags, Tggl’s cheapest plan offers a solid foundation with all the essential tools included. It's perfect for basic use cases, providing straightforward flag management for simple feature toggle, A/B tests, and release scheduling.
As your needs grow, Tggl also provides more advanced features in its higher-tier plans. These include unlimited projects, webhooks, server-side flag evaluation, and reviews. While the basic plan is a great entry point, upgrading to a more expensive plan unlocks the full potential of Tggl’s robust feature set.
Ease of use
Tggl takes the top spot in our comparison because it’s particularly easy to use. The setup process is streamlined, and the interface is designed with usability in mind. To give you a practical example, we recorded a short video where we enable a flag for 20% of French users. Similar recordings were made for all the tools in this list, allowing for an objective comparison of their ease of use.
The video clearly shows how straightforward Tggl is to use. To provide additional insights, we also gathered user ratings for ease of use and setup time. These ratings reflect the experiences of developers who have used Tggl and offer a valuable perspective on how the service performs in real-world scenarios.
- Setup time: 4.8/5
- Ease of use: 4.9/5
Pricing
In conclusion, Tggl stands out as the most cost-effective option among the feature flag solutions we reviewed, starting at €180/yr for five seats. For smaller teams, pricing is based on the number of seats and request volumes, which helps manage costs effectively. Larger teams, on the other hand, can benefit from a flexible pricing model that allows for unlimited seats while only paying for the volume of requests.
- Price for 5 seats: €180/yr
- Price for 10 seats: €530/yr
#2 Unleash
Lets take a look at Unleash, a solid option for feature flag management. With its own Express.js SDK, Unleash is designed to seamlessly integrate with your Express.js projects. In the next sections, we'll explore its features and pricing to see how it compares to the other tools on our list.
Features
Unleash offers all the essential features you’d expect from a feature flagging service, making it a reliable choice for most Express.js projects. Its lower-tier plans include key functionalities like feature toggling, ensuring that even teams on a budget can effectively manage their feature deployments.
For those who need more advanced capabilities, however, some features are reserved for the higher-tier plans.
Some other features of Unleash are only available on the highest plan and will require a call with a sales representative (eg. unlimited projects, reviews, custom roles, unlimited environments, unlimited seats and flag scheduling).
Ease of use
We’ve recorded a video for each tool on our list to demonstrate their UI where we release a feature for 20% of French users. This will allow you to directly compare how Unleash handles feature rollouts and how it might fit your workflow.
Unleash takes a bit of time to get used to, but once you get the hang of it you can update flags pretty easily.
To help evaluate Unleash's performance, we collected user ratings for both ease of use and setup time. These ratings, where higher numbers reflect better experiences, give a clear picture of how simple it is to get up and running with the platform and how user-friendly it is. Let’s dive into the results to see how Unleash stacks up.
Here is what people who are using Unleash think about the product (the higher the better):
- Setup time: 3.8/5
- Ease of use: 3.2/5
Pricing
Unleash isn’t the cheapest option available, and its pricing can increase rapidly as your team size expands. To provide some clarity, we’ve outlined a few example price points based on different team sizes, so you can better understand how Unleash’s pricing might fit your needs.
Unleash is not the cheapest option from this list, especially for larger teams, the price increase can be steep. Here are some prices to give you an idea:
- Price for 5 seats: $960/yr
- Price for 10 seats: $1 860/yr
#3 Flagsmith
Next on our list is Flagsmith, another strong contender. Flagsmith offers a Express.js SDK, making it easy to integrate into your existing projects. In the following sections, we'll take a closer look at the features and pricing that make Flagsmith a noteworthy option.
Features
Flagsmith provides a comprehensive set of basic features that make it a solid choice for managing feature flags in Express.js projects. With its core offerings, you can easily toggle features on and off. These essential tools are available even on the lower-tier plans, making Flagsmith accessible to teams that need robust feature flagging capabilities without breaking the bank.
However, for those seeking more advanced functionalities, you'll need to opt for one of the more expensive plans. Such as flag scheduling or MFA that start at $540 a year and reviews, custom roles or audit log that start at $2 400 a year.
Ease of use
To showcase Flagsmith's UI, we’ve prepared a short video demonstration. In the video, we’ll walk you through the process of releasing a feature for 20% of French users. Flagsmith may not the most user-friendly tool from this list, but at least it gets the job done fairly quickly.
To give a better sense of how Flagsmith performs in real-world use, we’ve gathered user ratings for two key areas: ease of use and setup time. These ratings, with higher scores indicating better performance, provide insights into how quickly teams can get started with the platform and how intuitive it is to use in day-to-day operations. Let’s take a look at how Flagsmith fared in these categories.
Here is what people who are using Flagsmith think about the product (the higher the better):
- Setup time: 4.2/5
- Ease of use: 3.4/5
Pricing
When it comes to pricing, Flagsmith is not the most affordable option on the list. The cost can rise quickly as your team size grows. While it offers robust capabilities, the pricing may become a concern for smaller teams or those with limited budgets. To give you a better sense of what to expect, we’ve included a few example price points based on team size to help you gauge how costs might scale as your needs evolve.
Flagsmith is not the cheapest option from this list, especially for larger teams, the price increase can be steep. Here are some prices to give you an idea:
- Price for 5 seats: $2 400/yr
- Price for 10 seats: $3 600/yr
#4 Split
Next up is Split, a versatile feature flag service that also offers a Express.js SDK for easy integration. As we continue, we'll dive into the specifics of Split’s features and pricing, highlighting what sets it apart from the competition.
Features
Split is equipped with all the fundamental tools necessary for effective feature flag management, making it a strong contender for Express.js developers. The basic plan includes essential features such as feature toggling, offering a solid foundation for most projects.
However, if you’re looking for more advanced features, you’ll need to consider one of the more expensive plans. Those feature include unlimited projects, flag scheduling, custom roles or remote config which starts at $7 200 a year and audit log which starts at $3 960 a year.
Some other features of Split are only available on the highest plan and will require a call with a sales representative (eg. reviews).
Ease of use
We have recorded a video demonstration to show how to release a feature for 20% of French users using Split. This will help you compare the ease of use across different platforms, giving you a better idea of how Split and the others handle feature rollouts in practical scenarios.
Split's UI should be good enough for anyone to use without too much trouble.
We've gathered user feedback on two key aspects of Split: ease of use and setup time. The higher the rating, the more favorable the experience, giving us a clear indication of how smoothly the platform works in practice. Next, we’ll review how Split performed in these areas based on user input.
Here is what people who are using Split think about the product (the higher the better):
- Setup time: 3.9/5
- Ease of use: 3.5/5
Pricing
In terms of pricing, Split tends to be on the higher end, with costs rising quickly as your team size grows. While it offers a range of powerful features, the price may be a limiting factor for smaller teams or projects. To give a clearer picture, we’ve listed a few pricing examples based on various team sizes to illustrate how expenses can scale with growth.
Split is not the cheapest option from this list, especially for larger teams, the price increase can be steep. Here are some prices to give you an idea:
- Price for 5 seats: $3 960/yr
- Price for 10 seats: $3 960/yr
#5 LaunchDarkly
Next in our lineup is LaunchDarkly, another capable feature flagging service that includes a Express.js SDK for straightforward integration. We'll cover its features and pricing in the sections that follow, offering a closer look at why LaunchDarkly deserves consideration.
Features
LaunchDarkly offers all the essential features you’d expect from a feature flagging service, making it a reliable choice for most Express.js projects. Its lower-tier plans include key functionalities like feature toggling, ensuring that even teams on a budget can effectively manage their feature deployments.
For those who need more advanced capabilities, however, some features are reserved for the higher-tier plans. Options like duplicate flags, unlimited projects or reviews start at $1 000 a year.
Some other features of LaunchDarkly are only available on the highest plan and will require a call with a sales representative (eg. custom roles and flag scheduling).
Ease of use
To help you compare the ease of use between the tools, we’re recording a video for each one showing how to roll out a feature for 20% of French users. These videos will give you a hands-on look at how LaunchDarkly and the other platforms operate, making it easier to evaluate their strengths and weaknesses.
Unlike what you might have heard, it is actually not that hard to setup a flag in LaunchDarkly.
To provide more insight into LaunchDarkly's usability, we collected user ratings in two areas: ease of use and setup time. A higher rating indicates a smoother experience, helping gauge how quickly teams can adopt the platform and how intuitive it is. Let’s take a closer look at these ratings to see how LaunchDarkly measures up.
Here is what people who are using LaunchDarkly think about the product (the higher the better):
- Setup time: 4.1/5
- Ease of use: 3.5/5
Pricing
LaunchDarkly isn’t the most budget-friendly tool, and the price can climb significantly as the size of your team increases. To give you a sense of how costs can escalate, we’ve included some example pricing based on team size to help you evaluate whether LaunchDarkly fits your financial requirements.
LaunchDarkly is not the cheapest option from this list, especially for larger teams, the price increase can be steep. Here are some prices to give you an idea:
- Price for 5 seats: $500/yr
- Price for 10 seats: $2 000/yr
Got to LaunchDarkly pricing page
Conclusion
In summary, selecting the right feature flag tool for your Express.js projects requires careful consideration of features, usability, and cost. Throughout this article, we compared 5 leading options, highlighting their strengths and weaknesses. The video examples provided a hands-on look at how each platform functions, helping you make a more informed decision.
Whether your focus is on budget, advanced capabilities, or ease of integration, there’s a tool in this list that fits your needs.
