Confluent Community License Agreement Version 1.0

Also known as CCL, Confluent Community License, Confluent Community License 1.0.

Commercial use: allowed
Share alike: required
Attribution: required (keep the copyright and license notices)

Compare with… Add to the compatibility check Download JSON-LD Turtle RDF/XML Text

Write this as a license text (needs an account) DALICC reads the model above and writes what it permits, requires and prohibits in plain English. Without an account, the Text download above writes the model out from the vocabulary.

Canonical URI https://dalicc.net/licenselibrary/Confluent-Community-1.0

Permissions

Change license from the text
Commercial use from the text
Derivative works from the text
Derive from the text
Duties
- Add statement from the text
- Modification notice from the text
- Notice from the text
Distribute from the text
Duties
- Add statement from the text
- Notice from the text
- Share alike from the text
Modified works from the text
Modify from the text
Duties
- Add statement from the text
- Modification notice from the text
- Notice from the text
Reproduce from the text

Prohibitions

Promote from the text
Sublicense from the text

License-wide duties

This license states no duties that apply to the work as a whole.

What applies by default

The statements above are the library's reading of this license: each is marked with the sentence it rests on, or as a library convention where the text is not explicit. The statements below are the ones the DALICC reasoner supplies for acts the license says nothing about, from the default rules of the dependency graph it reasons with. Each one names the legal source it rests on. None of it is in the record.

No default rule of that graph reaches this license: it speaks about every act the rules are about.

Further terms

These are the things the license says about itself beyond the acts it permits, forbids and requires: when it ends, how long there is to put a breach right, which law governs it, and so on. A term that comes from the DALICC vocabulary links to its definition.

Field of use restriction: any purpose other than the Excluded Purpose, which is making available an online service that competes with the licensor's products or services providing the software
Governing law: the law of the State of California, United States
Reciprocity scope: the Software itself, not a licensee's own modifications, which may carry additional or different terms
Terminates on breach: Yes

Clauses

Warranty disclaimer

CONFLUENT HEREBY DISCLAIMS ANY AND ALL WARRANTIES AND CONDITIONS, EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, AND SPECIFICALLY DISCLAIMS ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, WITH RESPECT TO THE SOFTWARE.

Limitation of liability

CONFLUENT WILL NOT BE LIABLE FOR ANY DAMAGES OF ANY KIND, INCLUDING BUT NOT LIMITED TO, LOST PROFITS OR ANY CONSEQUENTIAL, SPECIAL, INCIDENTAL, INDIRECT, OR DIRECT DAMAGES, HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, ARISING OUT OF THIS AGREEMENT. THE FOREGOING SHALL APPLY TO THE EXTENT PERMITTED BY APPLICABLE LAW.

Accepting warranty or additional liability

While redistributing the Software or modifications thereof, Licensee may choose to offer, for a fee or free of charge, support, warranty, indemnity, or other obligations.

Additional clauses

BY INSTALLING, DOWNLOADING, ACCESSING, USING OR DISTRIBUTING ANY OF THE SOFTWARE, YOU AGREE TO THE TERMS AND CONDITIONS OF THIS AGREEMENT.

Info

Target asset types: Software
Region / jurisdiction: Worldwide
Validity: Perpetual
Source: https://www.confluent.io/confluent-community-license/
Legal code: https://www.confluent.io/confluent-community-license/
This description is published under: Creative Commons Attribution 4.0 International
Publisher: Confluent, Inc.
SPDX identifier: CCL (provisional, the record declares none)
Version: 1.0
DALICC identifier: Confluent-Community-1.0

This record is published under CC BY 4.0. Credit it as: DALICC License Library, DALICC - Verein zur Förderung der Rechtssicherheit in der Datenbewirtschaftung, https://dalicc.net, CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). The license it describes belongs to its publisher.

Use this license

Everything below is generated from this record. Replace the example address with the address of your own work.

JSON sidecar

{
  "license-uri": "https://dalicc.net/licenselibrary/Confluent-Community-1.0",
  "license-title": "Confluent Community License Agreement Version 1.0",
  "spdx-id": null,
  "asset": null,
  "generated-by": "DALICC"
}

RDF, Turtle

@prefix cc: <http://creativecommons.org/ns#> .

<https://example.org/my-work>
    cc:license <https://dalicc.net/licenselibrary/Confluent-Community-1.0> .

RDF, JSON-LD

{
  "@context": {
    "cc": "http://creativecommons.org/ns#"
  },
  "@id": "https://example.org/my-work",
  "cc:license": {
    "@id": "https://dalicc.net/licenselibrary/Confluent-Community-1.0"
  }
}

This license carries no attribution duty, so no credit line is offered here.

Badge

Markdown

[![License: Confluent Community License Agreement Version 1.0](https://dalicc.net/license-library/Confluent-Community-1.0/badge.svg)](https://dalicc.net/license-library/Confluent-Community-1.0)

HTML

<a href="https://dalicc.net/license-library/Confluent-Community-1.0"><img src="https://dalicc.net/license-library/Confluent-Community-1.0/badge.svg" alt="License: Confluent Community License Agreement Version 1.0"></a>

Review

Written from the license text by: Giray Havur
Written on: 2026-09-22
Second review: not yet done
Record changed since this review: yes (version 2, 2026-09-24)
Findings: 12 recorded, 9 applied to the record, 0 proposed

The record models the Confluent Community License Agreement, version 1.0. The grant covers use, modification, derivative works, distribution and reproduction, and is then cut by one defined term: the licensee may not exercise it for an Excluded Purpose, which is an online service competing with the licensor's own. It is not an open source licence. Unlike the other source-available texts in this set, it lets a licensee put its own modifications under terms of its choosing.

12 findings

info Rubric 1 spdx:licenseId applied

File name, record identifier and IRI local name agree. The triple is left out: the SPDX list does not carry this licence and no identifier is invented. cc:legalcode and dct:source are the publisher's page, which the licence text names as the place the agreement lives. dct:publisher is Confluent, Inc., which the first sentence names.
minor Rubric 1 dalicc:additionalClauses applied

The text was taken from a web page, and the conversion to plain text dropped the space after a full stop in three places where one sentence runs into the next. Every literal in this record is a complete sentence or a run of complete sentences that does not cross one of those joins, so no quotation carries the artefact.
info Rubric 2 odrl:target applied

dcmitype:Software only. The agreement covers software the publisher makes available under it.
major Rubric 3 odrl:permission applied

Section 1.1 grants a licence 'to: (a) use the Software; (b) prepare modifications and derivative works of the Software; (c) distribute the Software (including without limitation in source code or object code form); and (d) reproduce copies of the Software'. That gives odrl:modify, odrl:derive, cc:DerivativeWorks, dalicc:ModifiedWorks, odrl:distribute and odrl:reproduce. cc:CommercialUse is permitted: only the Excluded Purpose is carved out, and it is one kind of commercial activity rather than commercial activity as such. dalicc:ChangeLicense is permitted with no duty, for section 1.3, 'Licensee may add its own copyright notices to modifications made by Licensee and may provide additional or different license terms and conditions for use, reproduction, or distribution of Licensee's modifications.' That is the weak copyleft shape, the same as EPL-2.0 and CDDL-1.1. No dalicc:patentGrant: the text grants no patent licence and reserves all rights not expressly granted.
major Rubric 4 odrl:prohibition applied

dalicc:sublicense for 'The License does not include the right to sublicense the Software'. dalicc:promote for 'Confluent hereby reserves all rights in its trademarks and service marks, and no licenses therein are granted in this Agreement.' dalicc:ChangeLicense is not prohibited here, unlike in every other record of this set, because section 1.3 allows it for the licensee's own modifications.
minor Rubric 4 odrl:grantUse applied

Section 1.4 says 'each recipient to which Licensee provides the Software may exercise the Licenses so long as such recipient agrees to the terms and conditions of this Agreement', which would ordinarily give odrl:grantUse. It is left out for the same reason as in SSPL-1.0 and CAL-1.0: the dependency graph holds dalicc:sublicense owl:sameAs odrl:grantUse, and sublicensing is forbidden in the same sentence. The clause is quoted.
major Rubric 5 odrl:duty applied

cc:Notice for section 1.2(b), 'Licensee shall reproduce and not remove or alter all Confluent or third party copyright or other proprietary notices contained in the Software'; dalicc:addStatement for the same section's requirement to add a specific notice, whose wording is quoted in dalicc:additionalClauses; cc:ShareAlike on odrl:distribute only, because the Software itself stays under the agreement while modifications need not; dalicc:modificationNotice on odrl:modify and odrl:derive for section 1.2(a). dalicc:reciprocityScope says in words how far that reaches.
major Rubric 6 dalicc:WarrantyDisclaimer applied

The disclaimer and the limitation of liability are separate sections, so each goes into the property that names it, and the offer sentence of section 1.3 is dalicc:WarrantyOrLiabilityAcceptance, as on Apache-2.0. Ten further clauses are quoted in dalicc:additionalClauses, including the notice a licensee must ship.
major Rubric 7 dalicc:governingLaw applied

dalicc:governingLaw is 'the law of the State of California, United States' for section 6.1, which also sends a licensee outside the United States to arbitration under named rules. cc:jurisdiction stays dalicc:worldwide because the grant says worldwide. dalicc:terminatesOnBreach is true and no cure period is offered: 'If Licensee breaches any of its conditions or obligations under this Agreement, this Agreement will terminate automatically and the License will terminate automatically and permanently.'
gap Rubric 8 dalicc:fieldOfUseRestriction none

The Excluded Purpose has no term. dalicc:fieldOfUseRestriction is the nearest literal and the definition is quoted. Proposed term: dalicc:competingServiceRestriction, the same term Elastic-2.0, RSALv2 and the Timescale License need, which is the strongest case in this set for adding it.
info Rubric 9 record none

The consistency check of app.services.composer, run against licensedata/dependencygraph/dg_default.ttl, returned no conflicts. cc:ShareAlike hangs on odrl:distribute rather than on the licence as a whole, so permitting dalicc:ChangeLicense beside it is not the whole-work conflict the check looks for; it is the weak copyleft shape the text describes.
major Rubric 10 record none

Against the other source-available records in this set it is the only one that permits dalicc:ChangeLicense, and against EPL-2.0 and CDDL-1.1, which share that shape, it differs in barring a field of use. It carries no patent grant, which Elastic-2.0, RSALv2 and the Sustainable Use License all have.

Report an issue The review record as JSON The review checks the model against the license text. It is not legal advice.

History

This license model has 2 versions. Version 2 is the one served today; every earlier version keeps its own address, so a conclusion drawn from one of them can still be checked against it.

Version 2 current2026-09-24 Giray Havur

The changes since version 1 recorded which sentence of the text each statement rests on and named the license the record itself is published under.

View version 2 JSON-LD Turtle RDF/XML
7 changes
- changed permission cc:DerivativeWorks
  
  was permission cc:DerivativeWorks
  
  Manual edit The statement now quotes the sentence of the licence text it rests on: "Subject to the terms and conditions of this Agreement, Confluent hereby grants to Licensee a non-exclusive, royalty-free, worldwide, non-transferable, non-sublicenseable license during the term of this Agreement to: (a) use the Software; (b) prepare modifications and derivative works of the Software; (c) distribute the Software (including without limitation in source code or object code form); and (d) reproduce copies of the Software (the “License”)."
- changed permission odrl:derive with duties [cc:Notice, dalicc:addStatement, dalicc:modificationNotice]
  
  was permission odrl:derive with duties [cc:Notice, dalicc:addStatement, dalicc:modificationNotice]
  
  Manual edit The statement now quotes the sentence of the licence text it rests on: "Subject to the terms and conditions of this Agreement, Confluent hereby grants to Licensee a non-exclusive, royalty-free, worldwide, non-transferable, non-sublicenseable license during the term of this Agreement to: (a) use the Software; (b) prepare modifications and derivative works of the Software; (c) distribute the Software (including without limitation in source code or object code form); and (d) reproduce copies of the Software (the “License”)." Its duty cc:Notice quotes "On each Software copy, Licensee shall reproduce and not remove or alter all Confluent or third party copyright or other proprietary notices contained in the Software, and Licensee must provide the notice below with each copy."
- changed permission odrl:distribute with duties [cc:Notice, cc:ShareAlike, dalicc:addStatement]
  
  was permission odrl:distribute with duties [cc:Notice, cc:ShareAlike, dalicc:addStatement]
  
  Manual edit Its duty cc:Notice quotes "On each Software copy, Licensee shall reproduce and not remove or alter all Confluent or third party copyright or other proprietary notices contained in the Software, and Licensee must provide the notice below with each copy."
- changed permission odrl:modify with duties [cc:Notice, dalicc:addStatement, dalicc:modificationNotice]
  
  was permission odrl:modify with duties [cc:Notice, dalicc:addStatement, dalicc:modificationNotice]
  
  Manual edit The statement now quotes the sentence of the licence text it rests on: "Subject to the terms and conditions of this Agreement, Confluent hereby grants to Licensee a non-exclusive, royalty-free, worldwide, non-transferable, non-sublicenseable license during the term of this Agreement to: (a) use the Software; (b) prepare modifications and derivative works of the Software; (c) distribute the Software (including without limitation in source code or object code form); and (d) reproduce copies of the Software (the “License”)." Its duty cc:Notice quotes "On each Software copy, Licensee shall reproduce and not remove or alter all Confluent or third party copyright or other proprietary notices contained in the Software, and Licensee must provide the notice below with each copy."
- changed prohibition dalicc:promote
  
  was prohibition dalicc:promote
  
  Manual edit The statement now quotes the sentence of the licence text it rests on: "Confluent hereby reserves all rights not expressly granted to Licensee in this Agreement.Confluent hereby reserves all rights in its trademarks and service marks, and no licenses therein are granted in this Agreement."
- changed prohibition dalicc:sublicense
  
  was prohibition dalicc:sublicense
  
  Manual edit The statement now quotes the sentence of the licence text it rests on: "The License does not include the right to sublicense the Software, however, each recipient to which Licensee provides the Software may exercise the Licenses so long as such recipient agrees to the terms and conditions of this Agreement."
- added dct:license <https://creativecommons.org/licenses/by/4.0/>
  
  Manual edit Every record is published under CC BY 4.0. cc:license names the record DALICC keeps of that licence; dct:license now names it by the address Creative Commons publishes it at, so that a consumer matching the canonical IRI finds it.
Version 1

Created from the license text on 2026-09-22 (Source-available licences and riders).

View version 1 JSON-LD Turtle RDF/XML

Every change names the reason behind it: a finding of the content review, one of its library-wide decisions, the metadata that review wrote onto every record, or a hand edit. None of it is legal advice.

Nothing on this page is legal advice. What a license means is decided by its text; ask a legal advisor before you rely on it.