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Comparison · Collab
Shiori vs Slack
A side-by-side editorial comparison of Shiori and Slack — release velocity, themes, recent moves, and the top alternatives to consider.
Shiori vs Slack: at a glance
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.
What is Slack?
Slack lets companies manage Slackbot skills from code and CI, not only by hand
Slack's developer channel in October was mostly agent plumbing and tooling. Slackbot skills can now be created and managed through Web API methods, built from markdown instructions or existing canvases and kept current from CI. Slack Code for developers lets agents open ephemeral channels from an existing conversation as a shared workspace with people. Around that sit a new Block Kit layout block and four Slack CLI releases that shipped without descriptive notes.
Shiori vs Slack: editorial side-by-side
Shiori
0.0COLLAB
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.
Slack
5.0COMMSCOLLAB
Slack lets companies manage Slackbot skills from code and CI, not only by hand
◆ Current state
Slack's developer channel in October was mostly agent plumbing and tooling. Slackbot skills can now be created and managed through Web API methods, built from markdown instructions or existing canvases and kept current from CI. Slack Code for developers lets agents open ephemeral channels from an existing conversation as a shared workspace with people. Around that sit a new Block Kit layout block and four Slack CLI releases that shipped without descriptive notes.
◆ Where it's heading
The agent build-out that produced MCP client support and Slack Code is now getting administration surfaces: skills are becoming something an organization deploys and versions rather than configures in a UI. The SDKs added container and task_card layout blocks at the start of October, ahead of the layout block reaching Block Kit, so UI primitives for agent output are arriving in the libraries first.
◆ Prediction
Expect the Java, Python and Node SDKs to add the Slackbot skills methods and the new layout block, following the pattern of the October 1 SDK releases. The CLI notes give no hint of what changed, so its direction is unclear.
Shiori alternatives
Other Collab products tracked by Sparkpulse, ranked by recent ship velocity. Tap any card for the full editorial trajectory or compare directly with Shiori.
SiYuan
SiYuan's third 3.8.10 alpha adds a built-in Markdown editor and video looping.
Hibox
Hibox's feed now advertises free nonprofit training rather than product changes.
SOGo
SOGo's 5.12 line keeps shipping security fixes, now with mandatory settings attached.
CommaFeed
After a summer of security patches, CommaFeed 7.4 moves feed fetching to HTTP/2.
Teable
Teable follows its Template Center rebuild with a side-panel record view.
Slack alternatives
Other Collab products tracked by Sparkpulse, ranked by recent ship velocity. Tap any card for the full editorial trajectory or compare directly with Slack.
Converse.js
Converse.js 14.0.1 fixes OMEMO:2 group decryption broken by Chromium 153.
Element iOS
Element Classic now asks its own users to move to Element X, if their server opts in.
Brosix
Brosix follows its communities launch with a referral push and a private-room how-to.
VerneMQ
VerneMQ follows its year-in-the-making 2.2.0 with a quick round of subscription fixes.
Session
Session survived its funding scare; now Pro is on hold and Protocol v2 is the bet.
Misskey
Misskey moves to Sentry v11 and keeps shipping security fixes in its monthly releases.
Recent activity from Shiori and Slack
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 3d agoSlackSlack CLI 4.12.0, the fourth CLI release in October
- 4d agoSlackNew Block Kit layout block
- 5d agoSlackSlackbot skills API methods are here!
- 11d agoSlackSlack CLI 4.11.0 ships with no change notes
- 20d agoSlackSlack CLI 4.10.0 ships with no change notes
- 26d agoSlackSlack Code for developers
- 1y agoShioriAPI v1 gains tag endpoints, filtering and counts; proxy header auth
- 1y agoShioriSwagger UI disabled by default; session auth and Postgres fixes
- 2y agoShioriLight, dark and system theme selection in the web UI
- 2y agoShioriHome button clears the active search query
Frequently asked questions
What is the difference between Shiori and Slack?
They serve adjacent needs but don't currently overlap on shipped themes. Slack 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 Shiori better than Slack?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Slack 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 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.
What are the best alternatives to Slack?
Top Slack alternatives in Collab are ranked by recent ship velocity. Browse the "Slack alternatives" section above for the current picks, or visit /alternatives/slack for the full list with editorial commentary on each.