Flagsmith
Flagsmith: A flexible flag platform for teams that need hosted or self-hosted deployment. Ranked #1 of 27 in Feature Flag Software by our editors (9.4/10); pricing: Free plan · 14-day trial; best for open-source teams needing hosted or self-hosted flags.
At a glance
- Editor score9.4 / 10
- PricingFree plan · 14-day trial
- Best forOpen-source teams needing hosted or self-hosted flags
- Free planYes
- Paid from$40/mo
- Percentage rolloutsYes
- Facts checked22 Sep 2026
Where it wins
- Supports targeting, staged rollouts, remote configuration, and experimentation.
- Offers hosted, private cloud, and self-hosted deployment options.
- Includes approvals, audit logs, real-time updates, and broad SDK coverage.
Where it doesn't
- The Free plan allows 50,000 requests per month and one team member.
- Scale-Up costs $250/month annually or $300/month monthly.
- Enterprise is aimed at teams with 20+ members and uses tailored hosting solutions.
Our verdict on Flagsmith
Flagsmith is an open-source feature flag and remote configuration platform for development teams managing web, mobile, and server-side applications. It supports user and segment targeting, percentage-based and staged rollouts, remote application values, A/B testing, and multivariate testing. Its platform coverage includes web, iOS, Android, API, and self-hosted deployments, with SDKs for languages and frameworks including Python, Java, .NET, Node.js, Go, Rust, Swift, Kotlin, Flutter, JavaScript, and React Native. That makes it a practical fit for teams that want one flagging system across a varied application stack.
Pricing is structured around a free entry tier and usage-based paid plans. Free costs $0 per month and includes up to 50,000 requests monthly, one team member, unlimited feature flags, unlimited environments, unlimited identities and segments, and API access. Start-Up costs $40 per month with annual billing or $45 monthly, increasing capacity to 1,000,000 requests and adding three team members, unlimited projects, scheduled flags, two-factor authentication, and A/B or multivariate testing. Scale-Up costs $250 monthly annually or $300 monthly and adds 5,000,000+ requests, five to 20 team members, SAML/SSO, roles and permissions, change requests, and audit logs.
Governance and delivery controls are a notable part of the product. Flagsmith supports approval workflows, change tracking, real-time flag updates, and local evaluation for server-side SDKs. Integrations with Microsoft Teams, Datadog, New Relic, and OpenFeature extend its ecosystem fit. Enterprise supports cloud, private cloud, or self-hosted deployment for 20+ team members, with tailored hosting solutions, priority real-time technical support, and an enterprise SLA. Choose Flagsmith if open-source flexibility, deployment choice, and progressive delivery matter; smaller teams with very low request volumes may find the Free plan sufficient, while larger organizations should evaluate the Scale-Up or Enterprise structure.
Your product? Our editors can test Flagsmith in depth and publish a review, labelled as paid · from $149/mo →
Flagsmith pricing
All 4 Flagsmith plans and prices →
Flagsmith fact sheet
| Free plan | Yes |
|---|---|
| Paid from | $40/mo |
| SDK languages | JavaScript, React, Next.js, Android/Kotlin, iOS/Swift, Flutter, Python, Java, .NET, Node.js, Ruby, PHP, Go, Rust, Elixir |
| Targeting rules | Yes |
| Percentage rollouts | Yes |
| User segments | Yes |
| Environments | Not verified |
| Audit log | Yes |
| Approval workflows | Yes |
| Free trial | 14 days |
| Deployment | Cloud, Self-hosted |
| Platforms | Web, iOS, Android |
| Compliance & security | HIPAA, ISO 27001, GDPR, SSO/SAML, 2FA |
| Support | Email, Live chat, Community, Docs |
| Built for | Solo, Small business, Mid-market, Enterprise (editorial estimate) |
| Integrations | 18 integrations: Amplitude, Backstage, Datadog, Dynatrace, GitHub, GitLab … See all → |
| Pricing | Free plan · 14-day trial (source) |
| Website | flagsmith.com |
| Facts checked | 22 Sep 2026 |
Flagsmith integrations
Flagsmith lists 18 integrations on its own site.
- Amplitude
- Backstage
- Datadog
- Dynatrace
- GitHub
- GitLab
- Grafana
- Jira
- Mixpanel
- OpenFeature
- RudderStack
- Segment
- Sentry
- Slack
- Terraform
- Snowflake
- Redshift
- Webhooks
See all Flagsmith integrations →
Alternatives to Flagsmith
- ConfigCatBroad feature flag coverage with a useful free tier and clear growth paths.9.2
- SplitA strong fit for teams that want feature flags and experimentation in one platform.9.0
- Optimizely Feature ManagementA flexible feature flag platform with free rollouts and analytics integrations.8.9
See all Flagsmith alternatives →
Flagsmith vs the competition
- Flagsmith vs ConfigCat
- Flagsmith vs Split
- Flagsmith vs Optimizely Feature Management
- Flagsmith vs GrowthBook
- Flagsmith vs Statsig
- Flagsmith vs FeatBit
Compare Flagsmith with any tool side by side →
Also Ranked In
Flagsmith is ranked in 3 of our directories.
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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