← Back to home
Comparison · Collab

Prowlarr vs Shiori

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

Shared themes:self-hosted

Prowlarr vs Shiori: at a glance

FeatureProwlarrShiori
SectorCollabCollab
Velocity score5.00.0
Sparks · 30d00
Top themesindexer, self-hosted, arr-ecosystem, security-settingsbookmarks, self-hosted, api-first, golang
Last editorial update7h ago3mo ago
WebsiteVisit →Visit →

What is Prowlarr?

Prowlarr adds Trusted Networks and host validation, then moves to 2.7

Prowlarr, the indexer manager for the *arr apps, ships patch releases every one to three weeks. 2.6.5 added a Trusted Networks setting and hostname validation, with follow-up fixes to Allowed Hosts logging and health checks. 2.7.0 bundled wildcard IP support in Allowed Hosts, IMDb search for BroadcasTheNet, a longer AvistaZ rate limit and base64 decoding in Cardigann definitions.

Read the full Prowlarr trajectory →

What is Shiori?

A Go bookmark manager rebuilding itself around an API — and only ever shipping release candidates.

Shiori is a self-hosted read-later and bookmark tool whose recent history is entirely release candidates: v1.7.0-rc.2, rc.3, v1.7.2-rc.1, v1.8.0-rc.1. The visible work has moved off the web UI and into an API v1 surface — tag endpoints, bookmark-tag association, filtering and counts — plus infrastructure like proxy-header authentication and SQLite performance. The last tagged release in this window is from July 2025.

Read the full Shiori trajectory →

Prowlarr vs Shiori: editorial side-by-side

P
Prowlarr
COLLAB
5.0

Prowlarr adds Trusted Networks and host validation, then moves to 2.7

◆ Current state

Prowlarr, the indexer manager for the *arr apps, ships patch releases every one to three weeks. 2.6.5 added a Trusted Networks setting and hostname validation, with follow-up fixes to Allowed Hosts logging and health checks. 2.7.0 bundled wildcard IP support in Allowed Hosts, IMDb search for BroadcasTheNet, a longer AvistaZ rate limit and base64 decoding in Cardigann definitions.

◆ Where it's heading

Security settings that limit which hosts and networks can reach the app are the main thread since September, rolled out in step with Lidarr. Indexer definitions keep getting small compatibility fixes.

◆ Prediction

More indexer-level fixes and Allowed Hosts follow-ups are likely in 2.7 patches.

S
Shiori
COLLAB
0.0

A Go bookmark manager rebuilding itself around an API — and only ever shipping release candidates.

◆ Current state

Shiori is a self-hosted read-later and bookmark tool whose recent history is entirely release candidates: v1.7.0-rc.2, rc.3, v1.7.2-rc.1, v1.8.0-rc.1. The visible work has moved off the web UI and into an API v1 surface — tag endpoints, bookmark-tag association, filtering and counts — plus infrastructure like proxy-header authentication and SQLite performance. The last tagged release in this window is from July 2025.

◆ Where it's heading

The project is converting from a web app with an API bolted on into an API-first service with a client, and the login component, PWA and theme work are being rewritten around that split. Proxy forward-header authentication in particular is a deployment-shape decision: it assumes Shiori sits behind an authenticating reverse proxy rather than owning identity itself. The RC-only tagging pattern makes it hard to tell what the maintainers consider stable.

◆ Prediction

The next step is presumably a final v1.8.0 consolidating the API v1 tag work, though nothing in these entries indicates the RC-to-stable promotion is scheduled. If the pattern holds, the following RC continues on API endpoints rather than the UI.

Alternatives to Prowlarr and Shiori

Other Collab 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 Prowlarr or Shiori.

See all Prowlarr alternatives → · See all Shiori alternatives →

Recent activity from Prowlarr and Shiori

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

  1. 6d agoProwlarrProwlarr 2.7.0: Allowed Hosts wildcards and indexer fixes
  2. 7d agoProwlarrProwlarr 2.6.6 pre-release, shipped as 2.7.0
  3. 1mo agoProwlarrProwlarr 2.6.5 adds Trusted Networks and host validation
  4. 1mo agoProwlarrProwlarr 2.6.5 pre-release: Allowed Hosts logging fixes
  5. 1mo agoProwlarrProwlarr 2.6.4 patch
  6. 2mo agoProwlarrProwlarr 2.6.3 patch
  7. 1y agoShioriAPI v1 gains tag endpoints, filtering and counts; proxy header auth
  8. 1y agoShioriSwagger UI disabled by default; session auth and Postgres fixes
  9. 2y agoShioriLight, dark and system theme selection in the web UI
  10. 2y agoShioriHome button clears the active search query

Frequently asked questions

What is the difference between Prowlarr and Shiori?

Both compete on the same themes — self-hosted — within Collab. Prowlarr is currently shipping more aggressively (velocity 5.0 vs 0.0), 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 Prowlarr better than Shiori?

Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Prowlarr is currently shipping more aggressively (velocity 5.0 vs 0.0), with 0 editorial sparks in the last 30 days against 0. For your specific use case, the alternatives sections above list other Collab products to evaluate alongside.

What are the best alternatives to Prowlarr?

Top Prowlarr alternatives in Collab are ranked by recent ship velocity. Browse the "Prowlarr alternatives" section above for the current picks, or visit /alternatives/prowlarr for the full list with editorial commentary on each.

What are the best alternatives to Shiori?

Top Shiori alternatives in Collab are ranked by recent ship velocity. Browse the "Shiori alternatives" section above for the current picks, or visit /alternatives/shiori for the full list with editorial commentary on each.