~/saas/gauge
self-hosted · flags · v1.5 · live

Gauge v1.5.0

Self-hosted feature flags that don't require a platform team. One Go binary, one SQLite file, SDKs for eight languages. Percentage rollouts, segment targeting, audit logs, and a LaunchDarkly-class UI — without the LaunchDarkly invoice.

Go 1.22SQLiteReact dashboardGo SDKRuby SDKPython SDKSwift SDKKotlin SDKTypeScript SDKRust SDKElixir SDK
$99 / one-time
USD · pretax · prices fixed forever
Dashboard
released may 2024
version 1.5.0 (apr 2026)
binary size 18MB + react ui
license unlimited flags
downloads 1,284
support email + sla (optional)
gauge — production flags
new-checkout
rollout: 20% · segment: all · 1,432 evals/min
● live
dark-mode
rollout: 100% · segment: all · 12,418 evals/min
● live
legacy-import-v1
sunset: apr 30, 2026 · 0 evals/min
○ off
bulk-export-v2
rollout: 100% · segment: plan=pro · 418 evals/min
● live
canary-next15
rollout: 5% · segment: internal · 84 evals/min
● canary
🔒gauge.skipdfluff.co / flags / production
press release · v1.5.0
Feature flags• production
Live flags
24
+3 this week
Evaluations / min
12,418
± 4%
p95 latency
9ms
stable
Canary rollouts
2
monitoring
FlagSegmentRolloutStatus
new-checkout
1,432 evals/min · owner @paulo
all users 20% • live
dark-mode
12,418 evals/min · owner @june
all users 100% • live
legacy-import-v1
0 evals/min · sunset apr 30
0% ○ off
bulk-export-v2
418 evals/min · owner @kasia
plan = pro 100% • live
canary-next15
84 evals/min · owner @paulo
segment: internal 5% • canary
onboarding-v3
2,041 evals/min · owner @serwaa
new signups 50% • live
sso-workos
198 evals/min · owner @william
plan = enterprise 100% • live
01

9ms p95 evaluations

Flag evaluation runs in-process via the SDK — no network round-trip on the hot path. The Gauge server is source-of-truth; the SDKs sync in the background.

02

Eight SDKs

Go, Ruby, Python, Swift, Kotlin, TypeScript (Node + browser), Rust, Elixir. Generated from one spec, tested against one fixture suite.

03

Percentage rollouts

0–100% with sticky-bucket hashing. A user at 10% stays in the 10% as you dial up to 20%. No jitter, no re-randomization.

04

Segments + targeting

Attribute-based rules: plan, country, cohort, anything you pass. JSON Logic under the hood — readable by the server, fast to evaluate.

05

Audit log

Every change tracked. Who turned what on, when, from which IP. Exportable CSV. SOC2 folks get asked about this; now you have an answer.

06

Kill switches

Every flag has a "kill" state that skips the rollout logic entirely. Paged at 3am because of a bad flag? One click, instant off.

What's in the zip

Go server binaryStatic, 18MB. Embedded SQLite. Runs anywhere a Linux binary runs.
Eight SDKsPublished under @skipdfluff on npm, RubyGems, PyPI. Typed, tested, versioned.
React admin dashboardEmbedded. Password + SSO-ready (OIDC). Role-based access.
Docker image + k8sHelm chart included. Horizontal scaling via SQLite replication (LiteFS).
Migration from LaunchDarklyCLI exports LD flags, remaps them, imports to Gauge. Usually a 10-minute job.
60-page ops manualDeploy, scale, back-up, rotate keys. Written by someone who's done it.

FAQ

SQLite for a flag service?

Flags are tiny. A million flag records fit in ~80MB on disk. SQLite is fast, reliable, and boring. If you truly need Postgres — and you don't — there's a driver swap in v2.

vs LaunchDarkly, Statsig, Flagsmith?

Fewer features, no per-MAU bill, you run the box. If you need experimentation (A/B, stats, etc.) Statsig is better. If you need feature-flagging, Gauge.

Cloud-hosted option?

Not from us. We do offer a managed deploy setup on fly.io for $10/month if you want "self-hosted but not by me." Ask after purchase.

/ stop paying $3k/mo for on/off switches

One binary. Eight SDKs. No LaunchDarkly invoice.

/ reviews

What buyers are saying.

★★★★★ 4.9 / 5 · 247 verified reviews
★★★★★ apr 12, 2026

Exactly what was on the tin. No upsells, no tier gates, no "contact us for pricing" once I was in. Shipped in an afternoon and the docs were readable by a human.

Alex Chen verified
senior engineer · berlin, de
★★★★★ apr 04, 2026

I've bought half the catalogue at this point. The voice is consistent, the prices are honest, and the updates actually land. It's what indie shipping should look like.

Sarah Miller verified
indie founder · austin, tx
★★★★☆ mar 28, 2026

Did what the page said it would do. Knocked off half a star because I wish there was a Windows native build — I'm on WSL and it works but feels like a workaround. Support replied to me in four hours.

David Patel verified
platform engineer · london, uk
★★★★★ mar 22, 2026

I bought it at 11pm, downloaded it at 11:01pm, had it running at midnight. That's the whole review. Email went to a person who answered the next morning.

Priya Rao verified
tech lead · bangalore, in
★★★★★ mar 15, 2026

The amount of thought in the copy alone makes this worth the price. And that's before you get to the actual product. Rare to see this level of care at indie prices.

Mikael Lindberg verified
design lead · stockholm, se
★★★★☆ mar 08, 2026

Swapped out my previous tool for this one last sprint. Fewer features, honestly — but the ones that are here are the ones I actually use. Don't miss the rest.

Elena Vasquez verified
product engineer · mexico city, mx