SiYuan
SiYuan stabilises 3.8.1 after a seven-build beta run, all of it widening the agent surface it opened in 3.8.0
Comparison · Collab
CommaFeed vs Kavita
A side-by-side editorial comparison of CommaFeed and Kavita — release velocity, themes, recent moves, and the top alternatives to consider.
Shared themes:self-hostedsecurity-hardening
CommaFeed vs Kavita: at a glance
What is CommaFeed?
CommaFeed is patching its way through the attack surface a self-hosted reader inherits
CommaFeed's 7.x line has become a sustained security pass. The newest patch closes Host header injection on the password recovery endpoint and adds a commafeed.password-recovery-public-base-url setting so the email base URL is configured rather than taken from the request. Behind it: local address blocking made secure by default alongside Google Reader API support in 7.3.0, javascript: URLs filtered at parse time in 7.2.1, and SSRF limits on the image proxy in 7.2.0.
What is Kavita?
A self-hosted reading server that spent two releases becoming infrastructure, then paid for it with a CVE.
Kavita ships two to four substantial releases a year with hotfixes trailing each one, and the last two years moved it well past a comic reader: OIDC login, an annotation system, a rebuilt epub reader, a reading-list overhaul, a stats system, and a scanner reported 50x faster. The most recent release is a critical security hotfix carrying CVE-2026-47202 that affects every prior version. Kavita+ remains the paid tier where metadata features land first.
CommaFeed vs Kavita: editorial side-by-side
CommaFeed
5.0COLLAB
CommaFeed is patching its way through the attack surface a self-hosted reader inherits
◆ Current state
CommaFeed's 7.x line has become a sustained security pass. The newest patch closes Host header injection on the password recovery endpoint and adds a commafeed.password-recovery-public-base-url setting so the email base URL is configured rather than taken from the request. Behind it: local address blocking made secure by default alongside Google Reader API support in 7.3.0, javascript: URLs filtered at parse time in 7.2.1, and SSRF limits on the image proxy in 7.2.0.
◆ Where it's heading
Every release in this stretch closes a path where content or a request from outside the instance was trusted too far - feed URLs reaching internal addresses, proxied images, javascript: links, and now a header shaping an outbound email. That is the checklist of a project being run as a multi-user hosted service rather than a single-user tool, and it follows directly from the 7.0.0 decision to sandbox filter expressions. Feature work continues in parallel but is clearly the smaller half.
◆ Prediction
The remaining untrusted-input surfaces - OPML import and the feed fetcher's redirect handling - are the likely next targets. The pattern of shipping each fix as its own patch release should continue rather than batching them.
Kavita
0.0COLLAB
A self-hosted reading server that spent two releases becoming infrastructure, then paid for it with a CVE.
◆ Current state
Kavita ships two to four substantial releases a year with hotfixes trailing each one, and the last two years moved it well past a comic reader: OIDC login, an annotation system, a rebuilt epub reader, a reading-list overhaul, a stats system, and a scanner reported 50x faster. The most recent release is a critical security hotfix carrying CVE-2026-47202 that affects every prior version. Kavita+ remains the paid tier where metadata features land first.
◆ Where it's heading
The arc is a hobby-scale project taking on the obligations of infrastructure — standard auth, an external API contract for third-party clients, sync with other readers, and formal vulnerability disclosure. Each of those decisions expands the attack surface, and the 0.9.x line shows the bill arriving: security hardening now leads the release notes rather than following them. The team has also visibly grown from one maintainer to a named pair, which is what made the parallel reader and foundation rewrites possible.
◆ Prediction
The next release is likely the delayed scanner-improvement work that 0.8.7 displaced, with continued API hardening rather than new reader surfaces. Expect the CVE details to be published once adoption of 0.9.0.2 is high enough.
Alternatives to CommaFeed and Kavita
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 CommaFeed or Kavita.
Hive
Hive ships in batches, and this one is all planning accuracy and admin control.
Teable
Teable ships daily, and the work has moved from grid features to platform governance.
Simpplr
Simpplr publishes the research that names the gap, then ships the product that closes it.
NetNewsWire
NetNewsWire's 7.1.3 train has moved from rebuilding sync to sweeping up what the rebuild disturbed.
Document360
Document360 rebuilt its API for agents; now it's turning the AI inward on authoring.
See all CommaFeed alternatives → · See all Kavita alternatives →
Recent activity from CommaFeed and Kavita
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 1d agoCommaFeedHost header injection closed on the password recovery endpoint
- 8d agoCommaFeedGoogle Reader API support and secure-by-default local address blocking
- 16d agoCommaFeedjavascript: URLs now filtered at parse time, not just in the client
- 1mo agoCommaFeedFeed-declared icons, starred-entry search, and image-proxy SSRF limits
- 3mo agoKavitav0.9.0.2 - Security Hotfix
- 3mo agoKavitav0.9.0 - Reading List Overhaul and Spring Cleaning
- 4mo agoCommaFeedMobile unread count in the header plus a graceful refresh shutdown
- 5mo agoCommaFeedFilter expressions move from JEXL to a sandboxed visual query builder ⚡
- 7mo agoKavitaAuth Keys endpoint smoothed out for external app authors
- 7mo agoKavitav0.8.9 - New Stats pages, Journal Style reading, 50x Faster Scanner, and so much more! ⚡
- 7mo agoKavitav0.8.7 - Comic Metadata Downloading, Reading Profiles, Browse by Genre and More
- 8mo agoKavitav0.8.8 - Epub Reader Overhaul, an Annotation System and OIDC! ⚡
Frequently asked questions
What is the difference between CommaFeed and Kavita?
Both compete on the same themes — self-hosted, security-hardening — within Collab. CommaFeed 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 CommaFeed better than Kavita?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. CommaFeed 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 CommaFeed?
Top CommaFeed alternatives in Collab are ranked by recent ship velocity. Browse the "CommaFeed alternatives" section above for the current picks, or visit /alternatives/commafeed for the full list with editorial commentary on each.
What are the best alternatives to Kavita?
Top Kavita alternatives in Collab are ranked by recent ship velocity. Browse the "Kavita alternatives" section above for the current picks, or visit /alternatives/kavita for the full list with editorial commentary on each.