#1 solutionFeature flags for C#

Streamline your C# development and launch updates confidently with feature flags. Tggl lets you deploy as soon as your code is ready and release features at your own pace.

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Feature flags in C#

Tggl lets you adopt best practises and add feature flags to your C# app in minutes with only a few lines of code and a single API call.

// In production code, don't destroy the HttpClient through using, but better use IHttpClientFactory factory or at least reuse an existing HttpClient instance
// https://docs.microsoft.com/en-us/aspnet/core/fundamentals/http-requests
// https://www.aspnetmonsters.com/2016/08/2016-08-27-httpclientwrong/
using (var httpClient = new HttpClient())
{
    using (var request = new HttpRequestMessage(new HttpMethod("POST"), "https://api.tggl.io/flags"))
    {
        request.Headers.TryAddWithoutValidation("x-tggl-api-key", "<API_KEY>");
 
        request.Content = new StringContent("{\"userId\":\"foo\",\"email\":\"foo@gmail.com\"}");
        request.Content.Headers.ContentType = MediaTypeHeaderValue.Parse("application/json");
 
        var response = await httpClient.SendAsync(request);
    }
}

API documentation

Best in class UIEasy to use interface, even for non-technical users

Empower product and marketing teams to experiment within safe boundaries set by your engineering team.

Your app is instantly updated when a flag is updated, no need to write code and deploy the new version.

Feature flag conditions based on plan type

PerformanceAPI or local flag evaluation

API flags evaluation

A single API call to evaluate all flags

Tggl lets you evaluate all flags in a single round trip to our servers using our robust and highly performant API.

You can also evaluates thousands of users at once by batching all your calls in a single HTTP request.

Read the documentation
Local flags evaluation

Local flags evaluation on your backend

Evaluate millions of flags a second locally without making a single API call. You data never sees our servers and you can evaluate flags a millisecond.

As resilient as it can be, if the Tggl API ever goes down, you can still evaluate flags locally based on the last successful sync.

Read the documentation

What our clients have to say about us

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I've been using AB tests from day one to take business decisions and Tggl was at the center of this strategy. The tech flexibility they provide (worker implementation, client side flag resolution, backend proxy, versioned library, type safety...) and their customer support make them extremely reliable and state of the art.
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Loïck Le Digabel profile pictureLoïck Le Digabel, CTPO & Co-founder @ Slowy

We value privacy and security

GRPR compliant

GDPR compliant

Tggl's robust data handling practices ensure GDPR compliance, safeguarding user privacy and data security.

Data stored in EU

Data stored in EU

Tggl securely stores data within the European Union, adhering to stringent data protection standards and regulations.

Your data dont reach our servers

Your data never reaches our servers

Use the open source Tggl proxy on your own infrastructure to ensure that your data never leaves your servers.

Two-factors authentification

Two-factor authentication

Enable two-factor authentication (2FA) to greatly improve your security posture on Tggl!

Custom roles

Custom roles

Assign granular access permissions to ensure the right people have the right access.

Feature flags history

Flag history

Precisely track what changes were made, who made them, and easily rollback to a previous configuration.

Start experimenting with feature flags in C#

You can try out Tggl at no cost and see immediate results. The platform is equipped with thorough documentation that simplifies the setup process. Its well-organized resources ensure that you can integrate Tggl smoothly and effectively into your development workflow.

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Compare with other solutions

Explore our comprehensive comparison guide for C#feature flag tools to find out which option suits you best. The guide evaluates each tool’s features, ease of use, and pricing, providing you with all the information necessary to make an informed choice.