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Comparison · Infra & APIs

Harbor vs Jackett

A side-by-side editorial comparison of Harbor and Jackett — release velocity, themes, recent moves, and the top alternatives to consider.

Harbor vs Jackett: at a glance

FeatureHarborJackett
SectorInfra & APIsInfra & APIs
Velocity score5.05.0
Sparks · 30d00
Top themescontainer-registry, security-hardening, valkey, supply-chaintorrent-indexers, maintenance, open-source, scraping
Last editorial update3h ago12h ago
WebsiteVisit →Visit →

What is Harbor?

Harbor 2.15 patches swap Redis for Valkey and tighten registry security.

Harbor is shipping 2.15.x patch candidates with security and dependency work. 2.15.2 replaced Redis with Valkey as the cache backend and moved to Go 1.26. 2.15.3 added a manifest upload size limit, blocked proxy-cache poisoning through robot-name prefixes and neutralised CSV formulas in scan exports. 2.15.4-rc1 relaxes two defaults that had caused regressions: webhooks can reach private networks and legacy signer pulls are allowed.

Read the full Harbor trajectory →

What is Jackett?

Jackett ships daily to keep hundreds of torrent indexers working as sites move.

Jackett ships a release nearly every day, and almost all of it is maintenance: domain updates, selector fixes, dead-site removals and new private-tracker definitions. The latest release also completes downloadblock selector detection in the definition schema.

Read the full Jackett trajectory →

Harbor vs Jackett: editorial side-by-side

H
Harbor
INFRA · APIS
5.0

Harbor 2.15 patches swap Redis for Valkey and tighten registry security.

◆ Current state

Harbor is shipping 2.15.x patch candidates with security and dependency work. 2.15.2 replaced Redis with Valkey as the cache backend and moved to Go 1.26. 2.15.3 added a manifest upload size limit, blocked proxy-cache poisoning through robot-name prefixes and neutralised CSV formulas in scan exports. 2.15.4-rc1 relaxes two defaults that had caused regressions: webhooks can reach private networks and legacy signer pulls are allowed.

◆ Where it's heading

The patch line is closing abuse paths in a registry many teams expose internally, while walking back defaults that broke existing setups. The Valkey switch shows Harbor following the wider move off Redis after its licence change.

◆ Prediction

Expect 2.15.4 to go final with the restored defaults and a refreshed Trivy; the entries don't show what the next minor release contains.

J
Jackett
INFRA · APIS
5.0

Jackett ships daily to keep hundreds of torrent indexers working as sites move.

◆ Current state

Jackett ships a release nearly every day, and almost all of it is maintenance: domain updates, selector fixes, dead-site removals and new private-tracker definitions. The latest release also completes downloadblock selector detection in the definition schema.

◆ Where it's heading

The product's value is keeping tracker coverage current, and that target keeps moving. The structural threads are the shift toward API-based indexer definitions and tighter schema validation, both of which should make definitions break less often when sites are redesigned.

◆ Prediction

Expect more daily patch releases dominated by domain and selector changes; any larger change will most likely move more trackers to API-based engines.

Alternatives to Harbor and Jackett

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 Harbor or Jackett.

See all Harbor alternatives → · See all Jackett alternatives →

Recent activity from Harbor and Jackett

Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.

  1. 1h agoJackettv0.24.2813
  2. 1d agoJackettJackett updates tracker domains and schema selector checks
  3. 1d agoHarbor2.15.4-rc1 restores private-network webhooks and legacy signer pulls
  4. 2d agoJackettv0.24.2806
  5. 3d agoJackettJackett bumps world-torrent and wolfmax4k domains
  6. 4d agoJackettJackett refreshes default user-agent, bumps tracker domains
  7. 5d agoJackettJackett adds FileIplay tracker, refreshes Spanish mirror domains
  8. 16d agoHarbor2.15.3-rc2: second candidate of the security patch
  9. 29d agoHarbor2.15.3-rc1: manifest size limit and proxy-cache poisoning fix
  10. 3mo agoHarbor2.15.2-rc3: Valkey replaces Redis as cache backend
  11. 3mo agoHarbor2.15.2-rc2: earlier candidate of the Valkey patch

Frequently asked questions

What is the difference between Harbor and Jackett?

They serve adjacent needs but don't currently overlap on shipped themes. Harbor and Jackett are shipping at a similar cadence (velocity 5.0 vs 5.0, both within Sparkpulse's "active" band). See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.

Is Harbor better than Jackett?

Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Harbor and Jackett are shipping at a similar cadence (velocity 5.0 vs 5.0, both within Sparkpulse's "active" band). For your specific use case, the alternatives sections above list other Infra & APIs products to evaluate alongside.

What are the best alternatives to Harbor?

Top Harbor alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "Harbor alternatives" section above for the current picks, or visit /alternatives/harbor for the full list with editorial commentary on each.

What are the best alternatives to Jackett?

Top Jackett alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "Jackett alternatives" section above for the current picks, or visit /alternatives/jackett for the full list with editorial commentary on each.