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Comparison · Infra & APIs
Inspektor Gadget vs Casdoor
A side-by-side editorial comparison of Inspektor Gadget and Casdoor — release velocity, themes, recent moves, and the top alternatives to consider.
Inspektor Gadget vs Casdoor: at a glance
What is Inspektor Gadget?
The eBPF observability tool just started reaching for the GPU.
Inspektor Gadget ships a feature release roughly monthly with bugfix releases in between, and the recent line has been steady kernel-side expansion: new gadgets, more eBPF program types, better stack symbolization. v0.55.0 breaks that pattern by adding initial GPU telemetry — a userspace daemon called gpu-ebpf-bridge that publishes GPU data through pinned BPF maps so gadgets can consume it. The rest of the release is the usual widening of eBPF surface plus stability work for high-churn nodes.
What is Casdoor?
Casdoor is turning single-tenant SSO into per-organization governance, one small release at a time
Casdoor ships multiple tagged releases a week, each carrying one or two commits, with version-only titles that hide the work. The current cluster is governance plumbing: configurable record and token retention per organization, auto-revoking permissions after an expiry window, and a batch UpdatePermissions API that cuts how often the Casbin enforcer rebuilds. Alongside it runs steady OAuth/OIDC conformance work — RFC 8707 resource indicators preserved through fast auto-signin, a backchannel logout URL on the application edit page.
Inspektor Gadget vs Casdoor: editorial side-by-side
Inspektor Gadget
6.3INFRA · APIS
The eBPF observability tool just started reaching for the GPU.
◆ Current state
Inspektor Gadget ships a feature release roughly monthly with bugfix releases in between, and the recent line has been steady kernel-side expansion: new gadgets, more eBPF program types, better stack symbolization. v0.55.0 breaks that pattern by adding initial GPU telemetry — a userspace daemon called gpu-ebpf-bridge that publishes GPU data through pinned BPF maps so gadgets can consume it. The rest of the release is the usual widening of eBPF surface plus stability work for high-churn nodes.
◆ Where it's heading
Two directions run in parallel. The kernel-side surface keeps growing — SockOps, SkSKB and SkMsg program types, map pinning, non-destructive map iteration, OTel and Python stack symbolization — which makes the tool a more general eBPF runtime rather than a fixed set of gadgets. Meanwhile the output side is becoming opinionated about ecosystems it serves: v0.54.0 taught advise_networkpolicy to emit Cilium NetworkPolicy resources alongside Kubernetes ones. GPU telemetry extends the first direction past the boundary eBPF normally stops at.
◆ Prediction
The GPU work is explicitly described as an initial design laying groundwork, so expect the next releases to build actual gadgets on top of the bridge rather than to expand it further; the pinned-map plumbing added in the same release is what those gadgets would consume.
Casdoor
5.0INFRA · APIS
Casdoor is turning single-tenant SSO into per-organization governance, one small release at a time
◆ Current state
Casdoor ships multiple tagged releases a week, each carrying one or two commits, with version-only titles that hide the work. The current cluster is governance plumbing: configurable record and token retention per organization, auto-revoking permissions after an expiry window, and a batch UpdatePermissions API that cuts how often the Casbin enforcer rebuilds. Alongside it runs steady OAuth/OIDC conformance work — RFC 8707 resource indicators preserved through fast auto-signin, a backchannel logout URL on the application edit page.
◆ Where it's heading
The center of gravity has moved from 'can users sign in' to 'can an operator govern what happens after they do.' Retention windows, permission expiry, and rename-safe Casbin group rules are all multi-tenant administration concerns, and each is being made configurable per organization rather than per deployment. The Casbin enforcer rebuild cost surfacing as its own fix suggests these installs are getting large enough for permission-model performance to matter.
◆ Prediction
Expect more per-organization lifecycle policy knobs and continued work on Casbin enforcer performance, since both themes have produced several releases in the last week alone.
Alternatives to Inspektor Gadget and Casdoor
Other Infra & APIs products tracked by Sparkpulse, ranked by recent ship velocity. Each card links to a full editorial trajectory and lets you pivot into a head-to-head comparison with either Inspektor Gadget or Casdoor.
kOps
kOps is tightening cluster defaults and dropping the platforms it no longer wants to carry.
Headlamp
Headlamp's feed is mostly chart bumps; the plugin toolchain is where the actual work shows.
Kubeshark
Kubeshark rebuilt its backend for V2 and is redrawing the free tier around it.
Certbot
Certbot is rebuilding its API around identifiers so certificates aren't only for domain names.
electerm
electerm now ships its own free AI backend, turning a terminal client into an assistant surface.
See all Inspektor Gadget alternatives → · See all Casdoor alternatives →
Recent activity from Inspektor Gadget and Casdoor
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 10h agoCasdoorRecords created on save rather than on Add click
- 3d agoCasdoorCasbin group rules follow a user through a rename
- 3d agoCasdoorCaptcha input clears on refresh; canceled adds clean up properly
- 3d agoCasdoorProducts gain a custom properties field
- 5d agoCasdoorPer-organization record retention windows
- 5d agoCasdoorProvider scopes column widened to varchar(200)
- 6d agoInspektor GadgetInspektor Gadget v0.55.0 opens a GPU telemetry bridge ⚡
- 26d agoInspektor GadgetRelease v0.54.1
- 1mo agoInspektor GadgetInspektor Gadget v0.54.0 generates Cilium NetworkPolicies
- 1mo agoInspektor GadgetRelease v0.53.2
- 2mo agoInspektor GadgetRelease v0.53.1
- 2mo agoInspektor GadgetInspektor Gadget v0.53.0 adds the trace_link gadget
Frequently asked questions
What is the difference between Inspektor Gadget and Casdoor?
They serve adjacent needs but don't currently overlap on shipped themes. Inspektor Gadget is currently shipping more aggressively (velocity 6.3 vs 5.0), with 1 editorial sparks in the last 30 days against 0. See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.
Is Inspektor Gadget better than Casdoor?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Inspektor Gadget is currently shipping more aggressively (velocity 6.3 vs 5.0), with 1 editorial sparks in the last 30 days against 0. For your specific use case, the alternatives sections above list other Infra & APIs products to evaluate alongside.
What are the best alternatives to Inspektor Gadget?
Top Inspektor Gadget alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "Inspektor Gadget alternatives" section above for the current picks, or visit /alternatives/inspektor-gadget for the full list with editorial commentary on each.
What are the best alternatives to Casdoor?
Top Casdoor alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "Casdoor alternatives" section above for the current picks, or visit /alternatives/casdoor for the full list with editorial commentary on each.