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Comparison · Collab
Paperless-ngx vs SOGo
A side-by-side editorial comparison of Paperless-ngx and SOGo — release velocity, themes, recent moves, and the top alternatives to consider.
Paperless-ngx vs SOGo: at a glance
What is Paperless-ngx?
Paperless-ngx shipped its 3.0 rewrite, then spent a week putting out the fires.
3.0.0 landed on July 22 after a long beta, carrying both the largest feature set in the project's history and nine breaking changes. The five releases since are pure repair: a broken migration in 3.0.1 that forced an immediate 3.0.2, then three patch rounds covering OCR skipping, permission-filtered dedup, Gotenberg conversion, email date parsing, AI suggestion caching and search index edge cases. The pace tells you 3.0 shipped into real deployments fast.
What is SOGo?
SOGo's 5.12 line has become a CVE conveyor belt while the team's attention sits on SOGo 6.
Six releases in three months, and the majority exist to fix vulnerabilities: XSS via crafted mail, SQL injection, JavaScript injection through hint and theme query parameters, impersonation when OpenID is paired with a non-matching user source, and two CVEs affecting PostgreSQL user sources. Releases 5.12.6 and 5.12.9 exist purely to undo regressions the security fixes introduced.
Paperless-ngx vs SOGo: editorial side-by-side
Paperless-ngx
6.3COLLAB
Paperless-ngx shipped its 3.0 rewrite, then spent a week putting out the fires.
◆ Current state
3.0.0 landed on July 22 after a long beta, carrying both the largest feature set in the project's history and nine breaking changes. The five releases since are pure repair: a broken migration in 3.0.1 that forced an immediate 3.0.2, then three patch rounds covering OCR skipping, permission-filtered dedup, Gotenberg conversion, email date parsing, AI suggestion caching and search index edge cases. The pace tells you 3.0 shipped into real deployments fast.
◆ Where it's heading
The project has moved from a document scanner-and-tagger to a document platform with AI in the core: Paperless AI, remote OCR via Azure, a document parser plugin framework, tantivy replacing Whoosh for search, file versions and sharelink bundles. The breaking changes are the other half of that story — dropping API v1, Python 3.10, document encryption and the old consumer clears the decks for that platform. Recent patches keep touching LLM plumbing, including passing output language into chat and adding docstrings so the classifier reads better as an LLM tool.
◆ Prediction
The 3.0.x patch cadence looks set to run at least another round or two — 3.0.5 is still landing search-compatibility and AI-suggestion fixes rather than tapering. Feature work resuming before that queue empties would be the surprise.
SOGo
0.0COLLAB
SOGo's 5.12 line has become a CVE conveyor belt while the team's attention sits on SOGo 6.
◆ Current state
Six releases in three months, and the majority exist to fix vulnerabilities: XSS via crafted mail, SQL injection, JavaScript injection through hint and theme query parameters, impersonation when OpenID is paired with a non-matching user source, and two CVEs affecting PostgreSQL user sources. Releases 5.12.6 and 5.12.9 exist purely to undo regressions the security fixes introduced.
◆ Where it's heading
Alinto declared a feature freeze on 5.12 to concentrate on SOGo 6, and the changelog reflects it — the one new capability in the window, a REST API in 5.12.2, was explicitly a pre-committed sponsored deliverable the team felt obliged to honour. What is left is a hardening cycle on a large groupware surface, with each fix carrying real regression risk into webmail and calendar.
◆ Prediction
Expect the 5.12.x line to keep producing security releases with regression follow-ups, and no new functionality until SOGo 6 surfaces.
Alternatives to Paperless-ngx and SOGo
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 Paperless-ngx or SOGo.
Jellyfin
Jellyfin drops the 10. prefix and puts 12.0 through a three-candidate preview.
PhotoPrism
PhotoPrism swapped in an ONNX vision pipeline, then opened the library to 360° media at 16K.
Immich
Immich is four release candidates into v3 with every feature note published somewhere else.
EGroupware
Two branches, one deadline: 23.1 security coverage ends August 15th and 26.x is the only exit.
File Browser
File Browser is shutting down — the repo archives on 2026-09-01 and no security fixes follow.
See all Paperless-ngx alternatives → · See all SOGo alternatives →
Recent activity from Paperless-ngx and SOGo
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 19h agoPaperless-ngxFifth 3.0 patch round: AI cache keying and search date units
- 5d agoPaperless-ngxPaperless-ngx v3.0.4
- 7d agoPaperless-ngxPaperless-ngx v3.0.3
- 9d agoPaperless-ngxPaperless-ngx v3.0.1
- 9d agoPaperless-ngxPaperless-ngx v3.0.2
- 10d agoPaperless-ngxPaperless-ngx v3.0.0 ⚡
- 2mo agoSOGoPatch undoes 5.12.8 regressions in preferences and mail display
- 2mo agoSOGoTwo CVEs fixed for PostgreSQL user sources
- 2mo agoSOGoFour vulnerabilities: XSS, SQL injection, OpenID impersonation
- 4mo agoSOGoTOTP silently disabled for new users, now fixed
- 5mo agoSOGoInjection fixes in hint queries, theme queries and categories
- 9mo agoSOGoAttachments can display above the message body
Frequently asked questions
What is the difference between Paperless-ngx and SOGo?
They serve adjacent needs but don't currently overlap on shipped themes. Paperless-ngx is currently shipping more aggressively (velocity 6.3 vs 0.0), 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 Paperless-ngx better than SOGo?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Paperless-ngx is currently shipping more aggressively (velocity 6.3 vs 0.0), with 1 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 Paperless-ngx?
Top Paperless-ngx alternatives in Collab are ranked by recent ship velocity. Browse the "Paperless-ngx alternatives" section above for the current picks, or visit /alternatives/paperless-ngx for the full list with editorial commentary on each.
What are the best alternatives to SOGo?
Top SOGo alternatives in Collab are ranked by recent ship velocity. Browse the "SOGo alternatives" section above for the current picks, or visit /alternatives/sogo for the full list with editorial commentary on each.