DNSControl
DNSControl is rewriting its record internals in public, one release candidate at a time
Comparison · Infra & APIs
Nebula vs ToolJet
A side-by-side editorial comparison of Nebula and ToolJet — release velocity, themes, recent moves, and the top alternatives to consider.
Shared themes:security
Nebula vs ToolJet: at a glance
What is Nebula?
Overlay network that rewrote its certificate format, then spent a year fixing what it exposed.
Nebula is a peer-to-peer mesh VPN built around a certificate authority model. The v1.10.0 release was the pivot: IPv6 and multiple addresses in the overlay, plus a new v2 ASN.1 certificate format with a unified interface for external implementations. Everything since has been consequence management — a P256 signature malleability issue that allowed blocklist bypass, a source-IP acceptance flaw tied to the new multi-address certificates, and a run of fixes around route tables and Windows listeners.
What is ToolJet?
ToolJet's beta line is stacking AI datasource connectors while LTS takes the security work.
ToolJet runs two release trains in parallel and they carry different cargo. The beta line's 3.21.57 is the substantive release in this window: datasource tagging and mentions with HubSpot, ServiceNow, and QuickBooks AI integrations, link and password expiry controls, a group-based user filtering endpoint, and a clearForm action on the Form widget. The LTS line is absorbing security and stability — two-factor authentication, cross-tenant database vulnerability fixes, CSV import — plus a steady drip of builder fixes that get backported between the trains.
Nebula vs ToolJet: editorial side-by-side
Nebula
2.5INFRA · APIS
Overlay network that rewrote its certificate format, then spent a year fixing what it exposed.
◆ Current state
Nebula is a peer-to-peer mesh VPN built around a certificate authority model. The v1.10.0 release was the pivot: IPv6 and multiple addresses in the overlay, plus a new v2 ASN.1 certificate format with a unified interface for external implementations. Everything since has been consequence management — a P256 signature malleability issue that allowed blocklist bypass, a source-IP acceptance flaw tied to the new multi-address certificates, and a run of fixes around route tables and Windows listeners.
◆ Where it's heading
The project has moved from single-IPv4-per-node assumptions toward a genuinely flexible addressing model, and the security fixes since v1.10.0 map directly onto that change — the new certificate features widened what the code has to validate. v1.11.0 shifts attention to the operational surface instead: structured logging, corrected firewall reject-versus-drop semantics, and Windows WFP filters installed by default.
◆ Prediction
The stated plan to assert low-s signature form when validating certificates is the concrete next step visible in these entries; expect it to land as a breaking validation change in a future release.
ToolJet
5.0INFRA · APIS
ToolJet's beta line is stacking AI datasource connectors while LTS takes the security work.
◆ Current state
ToolJet runs two release trains in parallel and they carry different cargo. The beta line's 3.21.57 is the substantive release in this window: datasource tagging and mentions with HubSpot, ServiceNow, and QuickBooks AI integrations, link and password expiry controls, a group-based user filtering endpoint, and a clearForm action on the Form widget. The LTS line is absorbing security and stability — two-factor authentication, cross-tenant database vulnerability fixes, CSV import — plus a steady drip of builder fixes that get backported between the trains.
◆ Where it's heading
The AI surface is being wired into enterprise systems of record rather than kept as a generic assistant, and datasource mentions suggest the intent is for AI features to reference specific connected sources instead of operating blind. Meanwhile the LTS train is where multi-tenant hardening lands, which is what a self-hosted product does when its user base skews toward customers running their own instances. Expect the same change to appear twice in the feed, once per train.
◆ Prediction
Expect the AI connector catalog to keep widening toward enterprise SaaS, since three major systems of record were added in a single beta release. The 3.21 features will follow the usual path into the LTS line once they stabilize.
Alternatives to Nebula and ToolJet
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 Nebula or ToolJet.
Fission
Fission's release feed carries only RC tags, and none of them say what shipped
Kaniko
Kaniko's release feed stops dead in June 2024 after a patch that undid its own change
mod_auth_openidc
mod_auth_openidc audited itself, found eight holes, and broke every session on the way out
Antrea
Kubernetes CNI maintaining four release branches at once, mostly to carry CVE fixes back.
KeeWeb
KeePass-compatible password manager frozen mid-patch-run since 2021.
See all Nebula alternatives → · See all ToolJet alternatives →
Recent activity from Nebula and ToolJet
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 1d agoToolJetLTS 3.20.209 fixes LDAP, Modules, and AI feature bugs
- 1d agoToolJetBeta 3.21.59 guards null group names, fixes docs deps
- 5d agoToolJetBeta 3.21.58 fixes ListView height and nested expressions
- 5d agoToolJetBeta 3.21.57 adds HubSpot, ServiceNow, QuickBooks AI integrations
- 6d agoToolJetLTS 3.20.208 updates submodules
- 7d agoToolJetLTS 3.20.207 adds 2FA and fixes cross-tenant DB vulnerabilities
- 18d agoNebulaBreaking: slog logging, corrected firewall reject/drop directions, Windows WFP filters
- 6mo agoNebulaP256 signature malleability allowed blocklist bypass
- 6mo agoNebulaFix panic in use_system_route_table introduced by the previous release
- 6mo agoNebulaRoute-reload, handshake, and Windows listener fixes after the v1.10 rework
- 8mo agoNebulaIPv6 and multiple addresses in the overlay, plus a v2 certificate format ⚡
- 10mo agoNebulaPackets accepted from erroneous source IPs with unsafe_routes or multi-IP certificates
Frequently asked questions
What is the difference between Nebula and ToolJet?
Both compete on the same themes — security — within Infra & APIs. ToolJet is currently shipping more aggressively (velocity 5.0 vs 2.5), with 0 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 Nebula better than ToolJet?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. ToolJet is currently shipping more aggressively (velocity 5.0 vs 2.5), with 0 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 Nebula?
Top Nebula alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "Nebula alternatives" section above for the current picks, or visit /alternatives/nebula-networking for the full list with editorial commentary on each.
What are the best alternatives to ToolJet?
Top ToolJet alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "ToolJet alternatives" section above for the current picks, or visit /alternatives/tooljet for the full list with editorial commentary on each.