New: surveys now ship through the SDK

Release · learn · improve

Ship with control. Learn what lands.

FujiFlag brings feature flags, remote configuration, experiments, and in-app surveys into one calm release workspace—so small teams can move fast without flying blind.

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No credit card React + JavaScript SDKs Free plan
FujiFlag feature flag dashboard showing real flags and remote configuration values

One control plane for the product release loop

Deploy separatelyTarget deliberatelyLearn in context

The platform

The controls to ship. The context to decide what comes next.

Most flag platforms stop at delivery. FujiFlag connects release control with first-party feedback, giving engineering and product teams a tighter path from an idea to evidence.

Release control

Feature flags

Separate deployment from release with environment values, contextual targeting, and deterministic percentage rollouts.

Explore feature flags
01

Runtime decisions

Remote config

Change strings, numbers, booleans, and JSON configuration without waiting for another build or app-store review.

Explore remote config
02

Controlled learning

Experiments

Run stable multi-variant splits for targeted users and send assignment metadata to the analytics stack you already trust.

Explore experiments
03

Customer evidence

In-app surveys

Build, publish, target, and analyze surveys delivered inline or as a modal through the same lightweight SDK.

Explore in-app surveys
04

A deliberate loop

Move from code shipped to decision made.

FujiFlag is designed around a simple reality: release work is not finished when code reaches production. It is finished when the team knows what to do next.

01

Deploy

Put code in production behind a flag.

02

Release

Target an audience or increase traffic gradually.

03

Learn

Capture assignment data and ask users directly.

04

Decide

Roll forward, change course, or switch it off.

Developer experience

A few lines to put release control in the code path.

The JavaScript and React SDKs are typed, read-only, cache-aware, and small enough to add without turning implementation into a project of its own.

TypeScript-first

Types for flag values, contexts, and evaluation details.

Cache-aware

Configurable TTL and optional polling for browser and Node apps.

Context targeting

Pass safe application context without storing identity data in responses.

Analytics-ready

Expose reason, variant, experiment key, and version metadata.

Explore the SDKs
checkout.tsx@fujiflag/react
import { useFlagEvaluation } from
 '@fujiflag/react';

const { value, detail } =
 useFlagEvaluation('new-checkout', false);

// Stable variant metadata for analytics
analytics.track('exposure', {
 variant: detail?.variant,
 version: detail?.experimentVersion,
});

Operational foundations

Enough structure for a team. Little enough ceremony to keep moving.

Projects and environments keep work separated, reusable configuration reduces mistakes, and workspace membership gives collaborators a shared place to operate.

Contextual targeting

Combine ordered rules with string, number, and boolean operators to define who receives a value.

Environment snapshots

Copy a reviewed configuration between development, staging, and production without rebuilding it by hand.

Shared workspaces

Organize projects, environments, API keys, and team membership around the way your product is built.

Included for launch

Feedback becomes part of the release—not a separate lane.

FujiFlag's launch product connects what was released, who experienced it, what they said, and what the team decided to do next.

Explore the feedback workflow

Feedback-linked releases

Link surveys to feature flags, follow up only with eligible recipients, and keep evidence beside the release.

AI feedback intelligence

Summarize response themes and surface the product signals a team should investigate.

Guided survey creation

Start from reusable templates, use richer question types, or ask the survey copilot for a first draft.

Decision-ready briefs

Create opportunity and release-decision briefs with explicit human review before anything becomes an action.

Simple pricing

Start free. Upgrade when the workspace becomes essential.

No complicated usage calculator and no enterprise call required to understand the starting price.

Free

$0forever

For a real project, not a time-limited demo.

  • 1 project
  • 1 environment
  • Feature flags
  • Remote config
  • Surveys
  • 1 member
Start free

Simple

$5/ workspace / month, billed yearly

For teams ready to make FujiFlag part of every release.

  • Unlimited projects
  • Unlimited environments
  • Unlimited flags
  • Unlimited remote config
  • Unlimited surveys
  • Unlimited members
View pricing details

Questions

The short version.

The docs cover implementation details. These are the things most teams want to know first.

What can I use FujiFlag for?+

Use FujiFlag for feature flags, typed remote configuration, targeted rollouts, multi-variant experiments, in-app surveys, feedback intelligence, and release decisions across projects and environments.

Which SDKs are available?+

FujiFlag currently provides lightweight JavaScript and React SDKs with TypeScript types, caching, polling, evaluation context, experiment details, and survey delivery.

Can I target particular users?+

Yes. Rules can evaluate string, number, and boolean context attributes. A stable opaque targeting key supports deterministic percentage rollouts and experiment assignment.

Does FujiFlag replace my analytics platform?+

No. FujiFlag exposes evaluation and variant metadata so you can measure results in your existing analytics stack, while built-in survey summaries handle direct response feedback.

Start small. Ship safely.

Make the next release a controlled one.

Start with feature flags today. Add experiments and in-app feedback when your release needs more context.

Create your free workspace

No credit card required.