AKHQ vs Offset Explorer
ComparisonsAKHQ vs Offset Explorer, compared
Key takeaway
AKHQ is free under Apache 2.0 with no paid tier, and Offset Explorer is licensed per named user at 139 US dollars each for the first ten. AKHQ is one container a platform team deploys once, reaching one cluster or many, configured in YAML under Helm. Offset Explorer installs on each engineer’s own machine, and its documented authentication is client to broker only, so nothing authenticates a person and there is no identity for an audit trail to key on. Kpow by Factor House is licensed per cluster at a published price.
What is AKHQ?
AKHQ is an open-source Kafka management UI under Apache 2.0, formerly KafkaHQ, self-hosted and built on Micronaut. One deployment reaches one cluster or many, covering topic browsing, live tailing, producing, consumer groups, Schema Registry, Kafka Connect, ACL management and role-based access with LDAP and OIDC. There is no commercial edition, no hosted service and no paid support tier, and no feature is held back from the open release.
- Releases: 0.28.0 in August 2026, after 0.27.1 in May and 0.27.0 in March.
- Maintainership: 441 commits from the lead maintainer, 82 from the next human contributor.
- Configuration: YAML deployed by Helm, so the cluster list and access model sit in source control.
- Deployment: one container, no external database.
What is Offset Explorer?
Offset Explorer is a GUI application for managing and using Apache Kafka clusters, installed on an engineer’s own machine rather than deployed as a service. It runs on Windows, macOS and Linux, with a bundled JRE on the first two and Java 21 or later required on Linux. It was renamed from Kafka Tool and the vendor’s domain is still kafkatool.com, so the two names refer to one product. It is built by DB Solo, LLC, licensed per named user, and supports Apache Kafka 0.11 and above.
- Message search: string, binary, Avro, Protobuf, JSON Schema, regular expressions and JsonPath.
- Compare Clusters: a first-class documented feature rather than a plugin.
- Command line tool: replays a project file saved from the GUI, with text, JSON, XML or CSV output and a nonzero exit on failure.
- Recent versions: 4.0.4 added the Cluster Compare tool, and 4.0.3 added KRaft quorum support, broker quotas and OAuth token testing.
It is not a thin viewer, and the licence buys a vendor with support and maintenance attached to it.
What is the official 2026 pricing of AKHQ and Offset Explorer?
AKHQ costs nothing to license, and its whole cost is operator time. Somebody sizes the JVM, reads the issue tracker before an upgrade, and answers for it when it stops. There is no SLA, because there is nobody to escalate to.
Offset Explorer publishes a per-user ladder. One to ten users is 139 US dollars each, so five engineers is 695 US dollars. Eleven to twenty is 128 each, so twenty engineers is 2,560 US dollars. Twenty-one to fifty is 119 each, and above fifty there is no published price. Every purchase includes 365 days of support and maintenance, after which staying current is 46 US dollars per licence a year. The unit is the named user, so the bill tracks headcount and not cluster count, and a machine several people share needs a licence for each person on it. Personal use is free with no time limit; commercial, educational and non-profit use all require a purchased licence after a 30-day evaluation.
Where does each one run out?
AKHQ’s governance is present but shallow. Masking takes four modes, configured globally in application YAML and keyed on topic and field path, so what is hidden does not vary by who is looking, and only one filter per topic is supported.
- Audit: opt-in, written to a Kafka topic the operator nominates, with no audit view inside the product.
- Metrics: port 28081 carries Prometheus metrics, a health endpoint and log level control, all describing AKHQ itself. No JMX visualisation and no alerting.
- Memory: a constant-increase report open since July 2022, and a second from May 2025.
- OIDC: the most active failure surface in the tracker, with new reports arriving in August 2026.
Offset Explorer’s limits follow from being a desktop application. The documented authentication is client to broker only: plaintext, SASL, SSL with a truststore and OAUTHBEARER all authenticate the connection, and nothing authenticates a person to the application, which leaves no user identity for a role model or an audit trail to key on.
- Governance: no role-based access control, no audit logging and no data masking on the feature list.
- ACLs: managed from the command line tool rather than the interface.
- Configuration: per workstation, travelling between engineers as exported files rather than from a shared store.
- Release history: the vendor publishes a change history with no date against any version on it.
Which should you pick?
Pick AKHQ if:
- more than a handful of people need the view
- the people who need it should not all hold broker credentials
- there is more than one cluster to look at
- the cluster list and access model belong in source control
Pick Offset Explorer if:
- the work is one engineer’s and stays that way
- the payload formats are awkward and the search has to cover Protobuf and JsonPath
- diffing two clusters before a cutover is routine
- the team is under about ten engineers who all hold cluster access anyway
The line between them is not which interface is better. It is whether the thing the team needs is a service or an application. A personal tool becomes team infrastructure the day somebody who does not hold cluster credentials needs to look at a topic, and neither answers that day well: one has no user to attach a permission to, and the other names the user and still hides the payload by a global rule that is the same whoever is looking.
Kpow: the bill tracks clusters, not people
Neither of these prices the cluster. Offset Explorer bills per named user, so the number grows every time somebody new needs a topic browser, and AKHQ bills nothing on paper but takes the same growth out of operator time instead: somebody still sizes the JVM and reads the tracker before every upgrade. Kpow by Factor House is licensed per cluster at a published price, so the number doesn’t move when a team of five becomes a team of fifty: one stateless container, no external database, and up to 12 clusters from a single instance.
That’s the number worth watching as headcount changes. Run it against yours to see what stays fixed.
Sources
- Apache Kafka documentation on authorization
- Apache Kafka documentation on consumer groups
- Apache Kafka documentation on KRaft