DEVOPS
At Universe, GitHub folds Copilot into Enterprise seats and lets Copilot Fusion pick the model.
Alternatives · team collaboration tools
Calibre-Web alternatives
The best Calibre-Web alternatives in team collaboration tools, ranked by Sparkpulse's velocity_score.
Updated Oct 28, 2026
Looking for the best alternatives to Calibre-Web? Sparkpulse tracks and ranks 12 alternatives in team collaboration tools by shipping velocity — how frequently each ships meaningful updates, verified from official changelogs. For reference, Calibre-Web shipped 0 meaningful updates in the last 30 days and carries a velocity score of 2.5 out of 10 in 2026. The alternatives below are ranked the same way, so you're comparing real release momentum, not marketing claims.
About Calibre-Web
A yearly release cadence spent almost entirely on Kobo sync and self-hosting hardening.
Calibre-Web is a self-hosted web frontend for an existing Calibre ebook library. It ships roughly one consolidated release a year, each a large bundle in which a short new-feature list sits on top of a much longer set of bug and security fixes. The most recent releases added MOBI and audio metadata extraction on upload, reverse-proxy login via a shared secret header, multi-book editing, and Calibre 9 compatibility. Kobo e-reader sync absorbs a disproportionate share of every release.
Velocity 2.5 · Last update 2mo ago
Top 12 alternatives to Calibre-Web
Ranked by recent ship velocity. Tap any card for the full editorial breakdown, or pivot to a head-to-head.
COLLAB
Teable's Structured Query v2 now reports across multi-hop relations, with a strict mode against SQL.
COLLAB
Ask Double can now read and post in Microsoft Teams on an accountant's behalf.
COLLAB
Mattermost v12 puts user-scoped permissions, private models and audit trails on every agent action.
COLLAB
Readwise splits its bundle into Reader-only and Highlights-only plans and renames its first app.
COLLAB
Softr adds a one-click path off Airtable, moving data, automations and apps onto Softr Database.
COLLAB
Wiki.js 3 beta.705 ships a built-in MCP server and page ownership with lifecycle rules.
COLLAB
Wiki.js 3.0 beta ships an MCP server so AI agents can work against the wiki directly.
COLLAB
Hive lets agents act on proof feedback and puts its tasks inside Claude and ChatGPT.
COLLAB
Skedda Companion can now be pushed to every laptop through MDM for full presence data.
COLLAB
Nextcloud ships three patch lines in a day as 35.0.2 adds webhook metadata and a report API.
COLLAB
SiYuan 3.8.9 reaches RC, adding AI-agent extraction of images embedded in PDFs.
Calibre-Web vs alternatives — shipping velocity at a glance
Velocity score (0–10) and meaningful releases shipped in the last 30 days, from official changelogs. Higher = shipping faster.
| Product | Velocity | Sparks · 30d | Focus areas | Latest release |
|---|---|---|---|---|
| Calibre-Web (baseline) | 2.5 | 0 | self-hostedebook-librarykobo-sync | — |
| GitHub | 10.0 | 2 | copilotmodel-routingenterprise-bundling | Route and orchestrate models with GitHub Copilot Fusion |
| Teable | 7.5 | 2 | no-code-databaseai-agentsmcp | Chat-first workspace preview, named queries, data-retention controls |
| Double | 7.5 | 2 | ai-assistantaccountingconnectors | Ask Double comes to Xero; Consolidations enters beta |
| Mattermost | 6.3 | 1 | ai agentsaccess controlself-hosted | Mattermost v12: Agents Are Doing the Work. Now Control What They Can See. |
| Readwise | 6.3 | 1 | pricingreader-apptext-to-speech | Readwise unbundles: Reader-only and Highlights-only plans |
| Softr | 6.3 | 1 | no-codeapp-builderdatabase | Migrate from Airtable |
| Wiki.js | 6.3 | 1 | wikiknowledge-managementmcp | Wiki.js 3 beta.705: built-in MCP server, page lifecycle rules |
| Wiki.js | 6.3 | 1 | wikiknowledge-basemcp | Wiki.js 3.0 beta adds MCP server and page lifecycle rules |
| Hive | 6.3 | 1 | project managementcreative proofingai agents | Edit PDF text and let agents apply proof feedback |
| Skedda | 6.3 | 0 | workplace-managementoccupancy-analyticsvisitor-management | Build with the Skedda API |
| Nextcloud | 6.3 | 0 | self-hostedfile-sharingsecurity-patches | Nextcloud 35: Euro-Office replaces OnlyOffice, FrankenPHP support |
| SiYuan | 5.0 | 0 | note-takingknowledge baseai agent | — |
The 12 best Calibre-Web alternatives, in depth
1. GitHub · velocity 10.0
At Universe, GitHub folds Copilot into Enterprise seats and lets Copilot Fusion pick the model.
Over the last 30 days GitHub shipped 2 meaningful updates vs Calibre-Web's 0, most recently “Route and orchestrate models with GitHub Copilot Fusion”. Its velocity score of 10.0/10 blends that with longer-term release cadence.
Where Calibre-Web leans on self hosted, ebook library and kobo sync, GitHub focuses on copilot, model routing and enterprise bundling.
Over the last 30 days GitHub has been shipping faster than Calibre-Web — a point in its favour if release momentum matters to you.
2. Teable · velocity 7.5
Teable's Structured Query v2 now reports across multi-hop relations, with a strict mode against SQL.
Over the last 30 days Teable shipped 2 meaningful updates vs Calibre-Web's 0, most recently “Chat-first workspace preview, named queries, data-retention controls”. Its velocity score of 7.5/10 blends that with longer-term release cadence.
Where Calibre-Web leans on self hosted, ebook library and kobo sync, Teable focuses on no code database, ai agents and mcp.
Over the last 30 days Teable has been shipping faster than Calibre-Web — a point in its favour if release momentum matters to you.
3. Double · velocity 7.5
Ask Double can now read and post in Microsoft Teams on an accountant's behalf.
Over the last 30 days Double shipped 2 meaningful updates vs Calibre-Web's 0, most recently “Ask Double comes to Xero; Consolidations enters beta”. Its velocity score of 7.5/10 blends that with longer-term release cadence.
Where Calibre-Web leans on self hosted, ebook library and kobo sync, Double focuses on ai assistant, accounting and connectors.
Over the last 30 days Double has been shipping faster than Calibre-Web — a point in its favour if release momentum matters to you.
4. Mattermost · velocity 6.3
Mattermost v12 puts user-scoped permissions, private models and audit trails on every agent action.
Over the last 30 days Mattermost shipped 1 meaningful update vs Calibre-Web's 0, most recently “Mattermost v12: Agents Are Doing the Work. Now Control What They Can See.”. Its velocity score of 6.3/10 blends that with longer-term release cadence.
Where Calibre-Web leans on self hosted, ebook library and kobo sync, Mattermost focuses on ai agents, access control and self hosted.
Over the last 30 days Mattermost has been shipping faster than Calibre-Web — a point in its favour if release momentum matters to you.
Full Mattermost trajectory → · Compare Calibre-Web vs Mattermost →
5. Readwise · velocity 6.3
Readwise splits its bundle into Reader-only and Highlights-only plans and renames its first app.
Over the last 30 days Readwise shipped 1 meaningful update vs Calibre-Web's 0, most recently “Readwise unbundles: Reader-only and Highlights-only plans”. Its velocity score of 6.3/10 blends that with longer-term release cadence.
Where Calibre-Web leans on self hosted, ebook library and kobo sync, Readwise focuses on pricing, reader app and text to speech.
Over the last 30 days Readwise has been shipping faster than Calibre-Web — a point in its favour if release momentum matters to you.
Full Readwise trajectory → · Compare Calibre-Web vs Readwise →
6. Softr · velocity 6.3
Softr adds a one-click path off Airtable, moving data, automations and apps onto Softr Database.
Over the last 30 days Softr shipped 1 meaningful update vs Calibre-Web's 0, most recently “Migrate from Airtable”. Its velocity score of 6.3/10 blends that with longer-term release cadence.
Where Calibre-Web leans on self hosted, ebook library and kobo sync, Softr focuses on no code, app builder and database.
Over the last 30 days Softr has been shipping faster than Calibre-Web — a point in its favour if release momentum matters to you.
7. Wiki.js · velocity 6.3
Wiki.js 3 beta.705 ships a built-in MCP server and page ownership with lifecycle rules.
Over the last 30 days Wiki.js shipped 1 meaningful update vs Calibre-Web's 0, most recently “Wiki.js 3 beta.705: built-in MCP server, page lifecycle rules”. Its velocity score of 6.3/10 blends that with longer-term release cadence.
Where Calibre-Web leans on self hosted, ebook library and kobo sync, Wiki.js focuses on wiki, knowledge management and mcp.
Over the last 30 days Wiki.js has been shipping faster than Calibre-Web — a point in its favour if release momentum matters to you.
Full Wiki.js trajectory → · Compare Calibre-Web vs Wiki.js →
8. Wiki.js · velocity 6.3
Wiki.js 3.0 beta ships an MCP server so AI agents can work against the wiki directly.
Over the last 30 days Wiki.js shipped 1 meaningful update vs Calibre-Web's 0, most recently “Wiki.js 3.0 beta adds MCP server and page lifecycle rules”. Its velocity score of 6.3/10 blends that with longer-term release cadence.
Where Calibre-Web leans on self hosted, ebook library and kobo sync, Wiki.js focuses on wiki, knowledge base and mcp.
Over the last 30 days Wiki.js has been shipping faster than Calibre-Web — a point in its favour if release momentum matters to you.
Full Wiki.js trajectory → · Compare Calibre-Web vs Wiki.js →
9. Hive · velocity 6.3
Hive lets agents act on proof feedback and puts its tasks inside Claude and ChatGPT.
Over the last 30 days Hive shipped 1 meaningful update vs Calibre-Web's 0, most recently “Edit PDF text and let agents apply proof feedback”. Its velocity score of 6.3/10 blends that with longer-term release cadence.
Where Calibre-Web leans on self hosted, ebook library and kobo sync, Hive focuses on project management, creative proofing and ai agents.
Over the last 30 days Hive has been shipping faster than Calibre-Web — a point in its favour if release momentum matters to you.
10. Skedda · velocity 6.3
Skedda Companion can now be pushed to every laptop through MDM for full presence data.
Its velocity score of 6.3/10 reflects longer-term release cadence; its most recent meaningful update was “Build with the Skedda API”.
Where Calibre-Web leans on self hosted, ebook library and kobo sync, Skedda focuses on workplace management, occupancy analytics and visitor management.
Skedda and Calibre-Web have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.
11. Nextcloud · velocity 6.3
Nextcloud ships three patch lines in a day as 35.0.2 adds webhook metadata and a report API.
Its velocity score of 6.3/10 reflects longer-term release cadence; its most recent meaningful update was “Nextcloud 35: Euro-Office replaces OnlyOffice, FrankenPHP support”.
Where Calibre-Web leans on self hosted, ebook library and kobo sync, Nextcloud focuses on self hosted, file sharing and security patches.
Nextcloud and Calibre-Web have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.
Full Nextcloud trajectory → · Compare Calibre-Web vs Nextcloud →
12. SiYuan · velocity 5.0
SiYuan 3.8.9 reaches RC, adding AI-agent extraction of images embedded in PDFs.
Its velocity score of 5.0/10 reflects longer-term release cadence.
Where Calibre-Web leans on self hosted, ebook library and kobo sync, SiYuan focuses on note taking, knowledge base and ai agent.
SiYuan and Calibre-Web have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.
Frequently asked questions
What are the best alternatives to Calibre-Web?
The top Calibre-Web alternatives we currently track in team collaboration tools are GitHub, Teable, Double, Mattermost, Readwise, ranked by recent ship velocity.
How is this list of Calibre-Web alternatives ranked?
Alternatives are ranked by Sparkpulse's velocity_score — release cadence + 30-day spark count + sector-relative ship rate.
Can I compare Calibre-Web directly with one of these alternatives?
Yes — every card has a "Compare with Calibre-Web" link to a side-by-side /compare page.