Skipper
Skipper adds RFC 9421 message signing and cuts RouteGroup parse time by 21%
Comparison · Infra & APIs
Dragonfly vs Jackett
A side-by-side editorial comparison of Dragonfly and Jackett — release velocity, themes, recent moves, and the top alternatives to consider.
Dragonfly vs Jackett: at a glance
What is Dragonfly?
Dragonfly tags v2.0.0 while hardening memory accounting and patching a HyperLogLog CVE across the 1.x line
Dragonfly is shipping across two concurrent tracks: the 1.40.x stable line is receiving steady improvements to connection memory accounting correctness, tiering metrics, and Redis ecosystem compatibility (RedisShake RDB format), while v2.0.0 has been tagged. The 2.0.0 entry's visible content is minimal — scope-based memory tracking is added but disabled — suggesting 2.0.0 is an architectural milestone marker for accumulated work rather than a single user-visible feature introduction.
What is Jackett?
Jackett ships near-daily releases keeping its tracker catalog current with domain migrations and category fixes.
Jackett operates as a pure maintenance project, releasing once or twice daily to track domain changes, expired certificates, broken selectors, and category mapping updates across its tracker catalog. The v0.24.2601 release included a minor security improvement — hiding the API key on the dashboard by default. Beyond that, there are no new capabilities in recent memory.
Dragonfly vs Jackett: editorial side-by-side
Dragonfly
6.3INFRA · APIS
Dragonfly tags v2.0.0 while hardening memory accounting and patching a HyperLogLog CVE across the 1.x line
◆ Current state
Dragonfly is shipping across two concurrent tracks: the 1.40.x stable line is receiving steady improvements to connection memory accounting correctness, tiering metrics, and Redis ecosystem compatibility (RedisShake RDB format), while v2.0.0 has been tagged. The 2.0.0 entry's visible content is minimal — scope-based memory tracking is added but disabled — suggesting 2.0.0 is an architectural milestone marker for accumulated work rather than a single user-visible feature introduction.
◆ Where it's heading
The project's operational focus is sharpening around production reliability and Redis compatibility: O(1) connection memory tracking, per-shard tiering metrics, CVE-2025-32023 remediation in HyperLogLog, and AVX2/NEON SIMD acceleration for dense HLL operations (8-29x measured gains). The staged 2.0.0 release and the disabled scope-based memory tracking point to Dragonfly building toward granular per-connection memory visibility as a differentiating feature for operators running large clusters.
◆ Prediction
Scope-based memory tracking will be re-enabled in a near-term 2.x patch — the code is already shipped in 2.0.0, just gated off. That re-enable will be the actual headline for what 2.0.0 unlocks operationally.
Jackett
5.0INFRA · APIS
Jackett ships near-daily releases keeping its tracker catalog current with domain migrations and category fixes.
◆ Current state
Jackett operates as a pure maintenance project, releasing once or twice daily to track domain changes, expired certificates, broken selectors, and category mapping updates across its tracker catalog. The v0.24.2601 release included a minor security improvement — hiding the API key on the dashboard by default. Beyond that, there are no new capabilities in recent memory.
◆ Where it's heading
The trajectory is flat. Jackett exists to maintain compatibility with a constantly shifting tracker ecosystem, not to develop new features. The daily release cadence reflects the maintenance burden of tracking domain migrations and engine changes across hundreds of trackers. Occasional new tracker engines ship (linuxtracker gained a new engine in v0.24.2605), but these are catalog expansions, not platform changes.
◆ Prediction
Continued daily releases of tracker definition updates and domain bumps. No observable signal points to a major feature addition or architectural change.
Alternatives to Dragonfly 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 Dragonfly or Jackett.
ToolJet
ToolJet bundles MCP into its EE image and adds PAT auth, making the AI builder addressable by external agents
GitHub
GitHub meters agentic CLI extensions as Copilot enterprise governance tightens
Ably
Ably ships LiveObjects as production-ready and expands its AI Transport SDK to cover Temporal durable workflows.
Buildkite
Buildkite ships Agent v4 after eight years and lands a VS Code extension, reshaping CI as IDE infrastructure.
authentik
authentik 2026.8.0 ships an Agent for machine identity and domain join, then enters rapid patch mode.
See all Dragonfly alternatives → · See all Jackett alternatives →
Recent activity from Dragonfly and Jackett
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 14h agoJackettDomain and category updates for multiple trackers
- 1d agoJackettNew engine for linuxtracker, expired CA fix for bluebird
- 2d agoJackettAPI key hidden from dashboard by default
- 3d agoJackettDomain updates for hdrtorrent, redetorrent, and several others
- 4d agoJackettAdds hdforever-api support, tracker category updates
- 5d agoJackettCardigann false-positive redirect fix, domain bumps
- 9d agoDragonflyDragonfly v2.0.0: major version milestone with scope-based memory tracking staged ⚡
- 12d agoDragonflyi1.40.8: fix(server): make connection memory accounting constant time (#8245)
- 14d agoDragonflyFix RDB listpack compatibility with RedisShake migrations
- 1mo agoDragonflyTiering: unified pending-bytes limit and metrics export
- 1mo agoDragonflyi1.40.2: backport: mem accounting fix, journal flushslots in tx (#8061)
- 1mo agoDragonflyHyperLogLog: CVE-2025-32023 patch, SIMD acceleration (8-29x), and three correctness fixes ⚡
Frequently asked questions
What is the difference between Dragonfly and Jackett?
They serve adjacent needs but don't currently overlap on shipped themes. Dragonfly 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 Dragonfly better than Jackett?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Dragonfly 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 Dragonfly?
Top Dragonfly alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "Dragonfly alternatives" section above for the current picks, or visit /alternatives/dragonfly 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.