Unleash vs Flipt
Both are alternatives to LaunchDarkly. Here's how they stack up — verified facts, no spin.
Also searched as Flipt vs Unleash — same comparison, one verdict.
Unleash and Flipt are closely matched on ownership (89 vs 93) — this one comes down to pricing and to which trade-offs below you can live with.
Unleash
TOP PICKThe most complete open feature-flag platform, and it self-hosts properly.
Unleash is the closest open equivalent to LaunchDarkly: gradual rollouts, user targeting, segments, environments, custom activation strategies and a genuinely good admin UI. Its architecture is the detail that matters most in production — SDKs evaluate flags locally from a cached configuration, so an outage of the Unleash server does not take your application down with it, which is not true of every platform in this category. AGPL-3.0 with around 13.7k stars, self-hostable with Docker, and an enterprise tier for organisations that want support and advanced governance. Note the licence: AGPL is strong copyleft, which matters if you intend to modify it and offer it as a service.
Flipt
Flags defined in Git, evaluated by one Go binary.
Flipt takes a GitOps approach: flag definitions live in your repository as files, get reviewed in pull requests like any other change, and are evaluated by a single Go binary that can run entirely offline with no external dependency. For a platform team that already runs everything through Git, this makes flags an ordinary part of the deployment pipeline rather than a separate control plane somebody has to remember to check. GPL-3.0 with about 4.9k stars. The trade is deliberate: no polished dashboard for product managers, because the source of truth is a file.
Side by side
10 points of comparison, every one read from a verified field. Green marks the side that wins a row outright. A dash means we do not hold that fact — never that it is zero.
| Unleash | Flipt | |
|---|---|---|
| Sovereignty ScoreOur transparent 0–100 composite for data ownership and exit cost. | 89 | 93 |
| Open source | Yes | Yes |
| Self-hostable | Yes | Yes |
| Local-first data | Yes | Yes |
| License | AGPL-3.0 (open core; enterprise tier is commercial) | GPL-3.0 |
| Pricing | Open-source server free and self-hostable. Hosted and enterprise tiers are paid. | Free and open source. One binary on hardware you already have. |
| RAM to run it wellThe figure that actually matters, not the vendor's minimum. | 2 GB | — |
| Realistic running costWhat the box costs each month if you run it yourself. | $12–24/mo plus Postgres, against per-seat feature-flag pricing | — |
| Setup timeHonest first-install estimate, not the marketing quickstart. | 1 hour | — |
| Ongoing maintenanceThe part nobody budgets for. | Low. | — |
Unleash is Macrostack's recommended LaunchDarkly alternative, so it's our pick here.
Weighing both against staying on LaunchDarkly? Is LaunchDarkly free? What it actually costs →
Unleash
Strengths
- +Closest feature parity with LaunchDarkly of anything open
- +Local SDK evaluation — your app survives an outage of the flag service
- +Mature, with a decade of production use behind it
- +Strong Kubernetes and Docker deployment story
Trade-offs
- −AGPL-3.0 is strong copyleft — read it before you modify and redistribute
- −Some governance and advanced features sit in the paid enterprise tier
- −No experimentation engine on the level of LaunchDarkly's
- −Self-hosting means running a server and a database you now own
Flipt
Strengths
- +Flag definitions live in Git — reviewed, versioned and audited like code
- +Single Go binary, runs air-gapped with no external calls
- +Fits a GitOps workflow with no extra machinery
- +GPL-3.0 with no enterprise carve-out
Trade-offs
- −Smallest project here — a real bus-factor consideration
- −No dashboard a non-engineer will happily use
- −Git-based workflow means non-technical staff cannot flip a flag
- −No experimentation or statistics
Which one fits you
The trade-offs above, turned into a decision. Find the line that describes your team.
Choose Unleash
if closest feature parity with LaunchDarkly of anything open.
Choose Flipt
if a lower exit cost matters more to you than any single feature, and flag definitions live in Git — reviewed, versioned and audited like code.
Neither, yet
if both carry a real cost you should weigh first — aGPL-3.0 is strong copyleft — read it before you modify and redistribute, and smallest project here — a real bus-factor consideration. If either of those is a dealbreaker for your team, the shortlist is wrong rather than the choice.
What it takes to run these yourself
Real requirements and honest running costs, not the vendor quickstart.
Unleash vs Flipt — common questions
Is Unleash a better fit than Flipt for feature flags & experimentation?
It depends on what you are optimising for, and the honest split is this: Flipt scores 93 to Unleash's 89 on data ownership and exit cost, so it is the safer choice if you care about being able to leave. Unleash earns its place on a different axis — closest feature parity with LaunchDarkly of anything open. Neither is a wrong answer for every team; the table above is the actual comparison.
What happens if we want to switch later?
Unleash keeps its data local or in open formats, so leaving is an export rather than a negotiation. Flipt is still self-hostable, so the files stay on your server either way — but it is not local-first by design, so check what its export produces before you rely on it.
Can I self-host Unleash or Flipt?
Both can be self-hosted. The difference is what it costs you in time rather than whether it is possible — see the setup and maintenance rows above.
Are Unleash and Flipt both alternatives to LaunchDarkly?
Yes — both appear in our LaunchDarkly comparison, which is why they are worth putting side by side. People usually arrive here already having decided to move off LaunchDarkly and now choosing between the two replacements, which is a narrower and much easier question.
Related alternative guides
Facts verified 2026-07-31. Licenses and pricing change — spotted something out of date? That's a correction we want.