Can I self-host Flagsmith for free?

Yes. Flagsmith is fully open-source — download the code, deploy on AWS, Kubernetes, or your own servers at zero cost. No licensing fees for self-hosted version. Cloud version starts at $45/month for small teams.

What's included in Flagsmith's A/B testing?

Flagsmith includes basic A/B testing: split traffic by percentage, target users by attributes, track variant exposure. No built-in statistics engine — you integrate with your analytics (Amplitude, Mixpanel) to measure impact.

Flagsmith vs LaunchDarkly — which is better?

Flagsmith is open-source and free to self-host; LaunchDarkly is enterprise SaaS only. Flagsmith for: teams wanting data ownership. LaunchDarkly for: teams wanting polished enterprise product. Flagsmith is 100% free self-hosted vs LaunchDarkly $500+/month.

Flagsmith Review 2026: Open-Source Feature Flags for India

🔓 Best for data-owning teams

Quick Verdict

Flagsmith is the best open-source feature flag platform for teams that want to own their data. Free to self-host on AWS Mumbai with zero licensing fees. A/B testing built-in. Cloud tier from $45/month for teams that prefer managed hosting. If you value data sovereignty, open-source code, and want to avoid vendor lock-in, Flagsmith is unbeatable.

India Availability

Ease of Use

Value for Money

Indian Support

What is Flagsmith?

Flagsmith is an open-source feature flag and experimentation platform. Launched in 2019, Flagsmith is backed by VC investors and focused on developer experience. The entire codebase is open-source on GitHub — you can self-host on your own infrastructure, fork it, modify it, or run their managed cloud service.

Flagsmith's core differentiator is that you own your data. No vendor lock-in. Deploy on AWS Mumbai (ap-south-1), keep all feature flags and experiment data in-country. A/B testing is built-in — split traffic by percentage, target by user attributes, track variant exposure.

Quick facts: Founded 2019 · London/Estonia · VC-backed · Open-source MIT license · 10K+ GitHub stars · Cloud + self-hosted · SOC 2 in progress

Key Features

Feature Flags

Toggle features on/off instantly. Target users by ID, email, custom attributes, or percentage. No re-deployment.

A/B Testing

Built-in A/B tests. Split traffic by percentage, target by segment. Integrate with Amplitude/Mixpanel to measure impact on your north star metric.

Open-Source

100% open-source. GitHub: github.com/Flagsmith/flagsmith. MIT license. Fork, modify, deploy yourself.

Self-Hosted on AWS Mumbai

Docker Compose or Kubernetes deployment. All data in ap-south-1 region. No data export concerns.

Multivariate Testing

Run 3+ variants in a single experiment. Test multiple flag values simultaneously.

SDKs for All Platforms

JavaScript, Python, Go, Java, .NET, React, Vue, iOS, Android. All maintained.

Flagsmith vs LaunchDarkly: Open-Source vs Enterprise SaaS

Flagsmith and LaunchDarkly serve different philosophies:

Criteria	Flagsmith	LaunchDarkly	Winner
Model	Open-source + managed cloud	Enterprise SaaS only	Flagsmith (flexibility)
Self-Hosting	✅ Free	❌ Enterprise only, $$$	Flagsmith
Data Ownership	✅ You own all data	❌ LaunchDarkly owns	Flagsmith
Pricing (Small Team)	Free self-hosted or $45/mo cloud	$500+/month	Flagsmith (100x cheaper)
Enterprise Features	Good	Best-in-class	LaunchDarkly
A/B Testing	✅ Built-in	❌ Separate product	Flagsmith
Vendor Lock-In	❌ None (open-source)	✅ High	Flagsmith

Bottom line: Flagsmith for teams valuing data sovereignty and cost. LaunchDarkly for large enterprises needing advanced governance.

Pricing (with INR conversion)

Flagsmith offers both free self-hosted and managed cloud. At 1 USD = ₹84.

Self-Hosted

₹0

Free forever

✅ Open-source (MIT license)
✅ Deploy on AWS Mumbai
✅ Unlimited flags & users
✅ A/B testing built-in
✅ No licensing fees
❌ You manage infrastructure

Cloud ⭐

from $45/mo

~₹3,780/month

✅ Everything in Self-Hosted
✅ Managed hosting
✅ Team collaboration
✅ Audit logs
✅ Scheduled flags
✅ Email support

Enterprise

Custom

Typically ₹80,000+/mo

✅ Everything in Cloud
✅ Self-hosted with support
✅ SSO/SAML
✅ Advanced governance
✅ Dedicated support
✅ SLA guarantee

🇮🇳 Indian pricing note: Self-hosted Flagsmith on AWS Mumbai = ₹0 software cost. Infrastructure cost ~₹5,000–10,000/month (t2.small EC2 + RDS). Cloud version $45+/month (₹3,780+) + 18% GST. Total all-in for cloud: ~₹4,460/month.

Who Should Use Flagsmith

Teams with data residency requirements — Self-host on AWS Mumbai, all data stays in-country. No data export concerns. Fintech and regulated companies love Flagsmith for this.
Cost-conscious startups doing A/B testing — Free to self-host. A/B testing built-in. $45/month for managed cloud. No vendor lock-in.
Teams that want to fork and customize — Open-source MIT license. Modify the codebase to fit your exact needs. Deploy your modified version.
Not for: Enterprise teams needing advanced governance — Flagsmith's team management and RBAC are simpler than LaunchDarkly. If you have 50+ engineers and need fine-grained access control, LaunchDarkly is better.
Not for: Teams wanting managed cloud with 99.99% SLA — Flagsmith cloud is good but smaller than LaunchDarkly. Enterprise SLA is custom. Self-hosting puts uptime on you.

First 5 Things to Set Up

1

Deploy Flagsmith on AWS Mumbai (or use Cloud)

Self-hosted: Clone github.com/Flagsmith/flagsmith, run Docker Compose: docker-compose up. Deploy to EC2 t2.small + RDS Postgres in ap-south-1. Or use Flagsmith Cloud at $45/month.
2

Create your first feature flag in Flagsmith dashboard

Name it new_feature_enabled, set to ON/OFF. Add description for your team.
3

Install SDK and check flags in your app

JavaScript: npm install flagsmith. Initialize with API key. Call flagsmith.hasFeature('new_feature_enabled') to check flag status.
4

Create an A/B test

Set up experiment: 50% control (old feature), 50% variant (new feature). Let it run. Measure conversion impact.
5

Connect to your analytics tool

Use Flagsmith webhooks to send flag changes to Amplitude, Mixpanel, or CleverTap. Track which users are in which variant.

Pros and Cons

Pros

100% free to self-host — no licensing fees ever
Open-source (MIT) — full code visibility, fork it if needed
Self-host on AWS Mumbai — data stays in India
A/B testing built-in — no need for separate experimentation tool
Cloud option available — managed hosting if you prefer
Zero vendor lock-in — switch tools easily with SDKs

Cons

Self-hosting requires DevOps knowledge — not for non-technical teams
Smaller company than LaunchDarkly — less resources for R&D
Team management features more basic than LaunchDarkly
Cloud uptime SLA not as strong as LaunchDarkly
Limited integrations vs LaunchDarkly
Email support only (no phone for non-enterprise)

Alternatives to Flagsmith

ConfigCat

Managed cloud, per-flag pricing. Less engineering overhead than self-hosting.

Choose when: Want managed without DevOps, per-flag pricing

Unleash

Open-source with enterprise support. More mature than Flagsmith.

Choose when: Need enterprise-grade open-source with paid support

Split.io

Cloud-based, focus on advanced experimentation analytics.

Choose when: Want cloud-first without managing infrastructure

Frequently Asked Questions

Can I really self-host Flagsmith for free?

Yes. Flagsmith is MIT open-source. Download from GitHub, deploy on AWS/Kubernetes/your servers. Zero licensing fees. Only costs: infrastructure (EC2, RDS, etc.) which runs ~₹5,000–10,000/month on AWS Mumbai.

How do I deploy Flagsmith on AWS Mumbai?

Clone github.com/Flagsmith/flagsmith. Use Docker Compose or Kubernetes Helm chart. Create t2.small EC2 + RDS Postgres in ap-south-1 region. 30 minutes to get running. All data stays in India.

Flagsmith vs Unleash — which open-source tool is better?

Both are excellent. Unleash is older (founded 2017 vs Flagsmith 2019), more mature. Flagsmith has better A/B testing built-in. Both self-hostable on AWS Mumbai. Try both free tiers and choose based on UI/feature preferences.

Can I measure A/B test impact on my north star metric?

Flagsmith tracks variant exposure via webhooks. Connect to Amplitude/Mixpanel, segment users by variant, measure impact on conversion/retention/revenue. No built-in statistics engine — you use your analytics tool for analysis.

Start with Flagsmith Free

Self-host free or cloud from $45/mo. Open-source. Full feature flags + A/B testing.

Start Free →

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