Camunda 8 vs Temporal: which to choose

Camunda 8 vs Temporal: which fits your workflow decisions

Camunda 8 fits when business analysts and engineers need to share one process model, and Temporal fits when engineers author and own the workflow as code. The decision usually starts from one of three situations: a Camunda 8 renewal or licensing review, a Camunda 7 end of life that forces a platform choice, or a new orchestration need with no incumbent. In each case, three questions settle it: who authors and operates the process, how much of the process must be visible to non-engineers, and whether a production license under the Camunda License v1 is acceptable for your organization.

Camunda 8 suits teams that model processes in BPMN and want those diagrams to be the shared artifact. Operate gives operations staff visibility into running instances, and Tasklist gives people a place to act on user tasks. Production use of Camunda 8 Self-Managed requires the Self-Managed Enterprise Edition, so that cost belongs in the comparison from the start. Temporal fits when the process is code-first: its server is MIT licensed, and you run it with your own persistence, visibility store and security setup. That freedom carries work. Self-hosted Temporal ships with the default noopAuthorizer, which allows every API request, so you must configure mTLS, an Authorizer and a ClaimMapper before production. Confirm your team can own that setup, the persistence choice and upgrades. Temporal Cloud and Camunda SaaS are also options if you prefer a managed service over running either platform yourself.

If your team wants a BPMN engine embedded in a Java application rather than a remote cluster, Flowable is often the better fit than either option. Its Apache 2.0 engines run in-process, support BPMN, CMMN and DMN, and can be deployed with Spring Boot starters. Before you shortlist, ask each vendor for a written statement of production licensing terms, the components you must license or run, and the support scope, and map those answers against the audit and access-control requirements your compliance team must evidence.

Which option fits which scenario

This table maps common scenarios to the option that usually fits better, with one reason for each. Read it as a starting point: the deciding factor is often who owns the logic, how long instances run and which licensing terms your organization can accept for production.

Scenario	Better fit	Reason
Business analysts own and change process models	Camunda 8	BPMN models in Camunda 8 are designed for business-readable diagrams, with Operate and Tasklist giving operations and business users visibility into running instances.
Long-running approvals with human tasks	Camunda 8	Human task handling, instance visibility and BPMN modeling of approvals fit Camunda 8 directly, while Temporal would require building task UIs and status views yourself.
Engineering-owned microservice sagas and compensations	Temporal	Workflows written as code let engineers express retries, timeouts and compensation logic in the same language and test suite as the services they coordinate.
Developers who want durable code without a diagram layer	Temporal	Temporal keeps workflow state durable so application code can run as if it never fails, with no separate modeling notation to maintain.
Java applications that need an embedded in-process engine	Flowable	Flowable runs embedded in Spring or servlet applications under Apache 2.0, whereas Camunda 8 runs its engine as a remote cluster.
Regulated environments that need self-hosting and a clear production license	Flowable or Temporal	Both Flowable (Apache 2.0) and Temporal (MIT) allow self-hosted production use without a commercial license, so confirm support needs with each vendor.
Teams that need a visual business console out of the box	Camunda 8	Operate and Tasklist ship with Camunda 8, so you rely less on building operations tooling for process visibility.

Where the data lives and who runs the security controls

Camunda 8 and Temporal split the operating work differently, and the split decides where process state sits and who must configure access. Read each card as a decision to make or a control to verify before production, not as a feature comparison.

Hosting models on each side

Camunda 8 is offered as Camunda SaaS or Self-Managed on Kubernetes, so the cluster and its data either sit with Camunda or with your platform team. Temporal runs as Temporal Cloud or as self-hosted services deployed with Docker Compose, Go binaries, Helm charts or a custom Go build. Confirm which option your residency rules allow, and who patches the Kubernetes layer and databases in each case.

Persistence stores and data location

Temporal persists workflow state in Cassandra, PostgreSQL or MySQL, and SQLite is limited to development and testing. Advanced visibility uses Elasticsearch, OpenSearch, MySQL, PostgreSQL or SQLite, and Cassandra visibility was removed in 1.24. Every store you pick holds workflow history and search attributes, so map those tables and indexes to your data classification and backup regions before you choose a store.

Default authorizer allows every request

A self-hosted Temporal server with no Authorizer configured uses the noopAuthorizer, which allows every API request with no authentication or access control. Before any shared environment goes live, you must set the Authorizer and ClaimMapper, and map JWT or certificate claims to namespace roles. Test this with a negative case from an unauthorized client, because a working deployment does not prove the controls are active.

Transport, SSO and network exposure

Self-hosted Temporal supports mTLS with separate settings for internode and frontend traffic, and OIDC single sign-on for the Web UI. Temporal's deployment guidance says services should run on hosts not reachable from the public internet, with access limited to trusted internal networks. Document which certificate authority issues each identity, and check that the frontend port is not exposed through an ingress you did not intend.

Payload encryption with codecs

Temporal does not encrypt workflow payloads by default, but custom codecs can encrypt them before they reach the server, and a codec server can decode them for the Web UI and CLI. Decide which fields contain personal or payment data, assign key ownership, and plan key rotation. Camunda 8 has its own data handling model, so compare where each platform stores variables and what your encryption design must cover on both sides.

Compliance evidence and ownership

DeployOpen plans, configures and documents these controls and prepares the evidence that assessors review, including access configuration, network diagrams and key procedures. DeployOpen does not issue audit reports, attestations or certifications, and independent auditors or certification bodies make those determinations. Ask any partner to list which controls they configure, which they hand over, and which remain your team's responsibility.

What the license means for production use of Camunda 8 and Temporal

From Camunda 8.6 onward, the source code of Zeebe, Operate, Tasklist, Identity and Optimize is under the Camunda License v1, and the compiled software is under proprietary licenses. Running Camunda 8 Self-Managed in production requires the Self-Managed Enterprise Edition. The Camunda Self-Managed Non-Production license permits use without a commercial license only for non-production purposes, so a test cluster or a proof of concept can run without a subscription, but any environment carrying live process instances for the business needs one. Before you commit, confirm with Camunda which components your Enterprise subscription covers, whether connectors and any add-ons you plan to use fall under it, and how the license treats forks, patches and internal redistribution. The Camunda 8 Self-Managed licenses documentation is the starting point for that conversation.

Temporal takes the opposite approach at the license level. The Temporal server is licensed under the MIT license, so your team can run it in production without a license fee from Temporal Technologies. The commercial relationship is with Temporal Cloud, which Temporal sells as a managed service. Its pay-as-you-go pricing starts at 50 US dollars per million actions, with separate charges for active storage and retained storage, according to the Temporal pricing page. Your cost model therefore depends on whether you run the server yourself, where you pay for infrastructure, databases, visibility stores and operations staff, or buy Cloud, where you pay per action and storage. Ask Temporal for a written quote that maps your expected action volume and retention period to those meters before comparing totals.

Read both license texts with your legal counsel before you decide, and do not rely on a summary, including this one. Ask counsel to check the Camunda License v1 terms against your intended deployment model, your use of the Camunda Enterprise support terms, and any plan to embed or resell the software. For Temporal, counsel should confirm the MIT terms apply to the exact server version you deploy and to any SDKs, UI components or tooling your team adds. Record the decision, the version reviewed and the date, because license terms change between releases and both vendors publish updates.

Operating Camunda 8 Self-Managed versus self-hosted Temporal

Camunda 8 Self-Managed is deployed on Kubernetes, and the platform team owns the cluster, the components and the data stores that sit behind them. The core runtime is Zeebe, which orchestrates BPMN and DMN process instances as a cluster. Operate gives operations staff visibility into running and finished instances, Tasklist handles user tasks for people in the process, Identity manages authentication and authorization, and Optimize provides process analytics. Each of these is a separate deployment to size, upgrade and monitor.

Kubernetes as the deployment target: The platform team provisions the cluster, ingress, storage and secrets handling, and keeps them patched.
Zeebe cluster sizing: Partition and replica settings determine throughput and resilience, so capacity planning belongs in the design phase.
Operate, Tasklist, Identity and Optimize: Each component has its own release lifecycle and configuration, and all of them must be kept compatible with the Zeebe version.
Enterprise license for production: Since 8.6, production use of Self-Managed requires the Self-Managed Enterprise Edition, while non-production use falls under the Camunda Self-Managed Non-Production license.
Recurring license cost: The Enterprise subscription is an ongoing commercial item to budget alongside infrastructure.

Confirm with Camunda which component versions your target release bundles, what the Enterprise terms cover for support and upgrades, and which Kubernetes distributions the current documentation supports.

Questions buyers ask before choosing between Camunda 8 and Temporal

What does self-hosting Temporal cost in effort, and which parts recur?

Self-hosting Temporal is mostly an operations commitment rather than a license purchase, because the server is MIT licensed. The one-time work is designing the deployment, choosing a persistence store and a visibility store, and wiring up security. The recurring work is upgrades, which Temporal documents as moving one minor version at a time, running schema upgrades before server upgrades when release notes require them, and keeping Helm chart versions compatible with the server image. Effort rises with the number of workflow executions you need to search, because visibility is a separate store that must be sized and run. Ask any vendor or implementation partner to split the quote into initial build, upgrade support and on-call operations, and confirm which of these your own platform team already covers.

Can business analysts change the process model in Camunda 8 without engineers?

In Camunda 8 the process is a BPMN diagram that business analysts can read and, with the right tooling and governance, edit, which is the main reason teams choose it. Engineers still own the job workers that implement each service task, so a model change that adds a new step usually needs a code change as well. In Temporal, the workflow is code, so changes to the process logic go through engineers and version handling in the code. Check which modeling tools your organization can use, who holds licenses for them, and how you will review model changes before deployment.

How do retries and durability differ between Camunda 8 and Temporal?

Both platforms persist workflow state so that a process can survive worker crashes and resume, but they expose retries differently. Temporal makes retry policies part of the activity and workflow code, so engineers configure timeouts and backoff alongside the logic they protect. Camunda 8 keeps retry counts and backoff on the job, and failed jobs become incidents that operators can see and resolve from the operations tools. Your choice depends on whether your team wants retry behavior expressed in code or observed and handled by operators. Test failure scenarios in both platforms with your own worker code before deciding.

Can Temporal give the business visibility that Camunda 8 provides?

Temporal provides a Web UI and workflow history that engineers use to inspect executions, and its advanced visibility store makes executions searchable. It is designed for engineering operations, so business users usually depend on dashboards or reports that you build on top of the visibility data. Camunda 8 includes process-level monitoring and task tooling aimed at operations and business users, although that tooling is part of the Camunda 8 product and its licensing. If business visibility is a requirement, specify the reports, users and retention you need, then ask each vendor to demonstrate them with a sample process.

How long does a move between the two platforms take, and what does it need from the team?

No duration can be stated here without a fixed scope, and the time depends on the number of processes, the amount of running state and how much custom code must be rewritten. Moving a BPMN process to Temporal means rewriting the flow as code, so it is effectively a re-implementation with new tests and operations work. Moving to Camunda 8 means modeling the flow and building job workers. The team needs engineers who can own workers or workflow code, someone who runs the platform, and a plan for in-flight instances. Ask for a written scope that lists processes, integrations and the cutover approach before comparing timelines.

Can we do the Camunda 8 or Temporal implementation without outside help?

A team with strong Kubernetes or database operations and experienced backend engineers can build either platform in house, and many do. The harder parts are usually production operations: secure network placement, mTLS and authorization, upgrades and capacity planning for the persistence and visibility stores. Temporal's default authorizer allows every API request, so access control must be configured before any production use. Camunda 8 Self-Managed in production requires an Enterprise license. Outside help is most useful for a fixed-scope review of your architecture, a security configuration and a documented upgrade runbook, which DeployOpen can plan, implement and document inside your own infrastructure.

When should we consider Flowable instead of either platform?

Consider Flowable when your application already runs on the JVM and you want the process engine embedded in it, with BPMN, CMMN and DMN support under the Apache 2.0 license. Flowable runs embedded in Spring or servlet applications or as a standalone service with REST APIs, and its async executor coordinates nodes through database lock expiry. Flowable 8.0.0, released on February 27, 2026, moved to Spring Boot 4 and Spring Framework 7 with no backward compatibility for Spring Boot 3, so check your framework version first. Its commercial products add low-code modeling and visual debugging, and open source users rely on a community forum with professional services sold separately. Confirm the features you need in the open source edition against the Flowable documentation.

Cost components on each side and what drives them up

On the Camunda 8 side, the largest recurring line is the Self-Managed Enterprise subscription or the SaaS fee, because production use of Camunda 8 Self-Managed requires that license under Camunda's licensing documentation. Ask the vendor to quote the subscription separately from the infrastructure it runs on, and to state which components are covered (Zeebe, Operate, Tasklist, Identity and Optimize), how usage is measured and whether support tiers change the price. Your own costs still recur on that side: Kubernetes clusters, the Elasticsearch or OpenSearch store that Operate and Optimize depend on, and the people who operate them. On the Temporal side, the choice is between Temporal Cloud, where the published pay-as-you-go pricing starts at 50 US dollars per million actions plus storage charges, and self-hosting the MIT-licensed server with no license fee. The self-hosted cost moves to your persistence database (Cassandra, PostgreSQL or MySQL, using the versions in the persistence docs), advanced visibility (Elasticsearch, OpenSearch or a SQL store), compute and backups.

The biggest variable on the self-hosted Temporal side is labor, not licensing. Upgrades are one minor version at a time, with schema changes run before server upgrades when release notes require them, and Helm chart versions below 0.73.1 do not work with server images 1.30 and later. Each upgrade, each security configuration (Authorizer, ClaimMapper, mTLS, OIDC for the Web UI and payload codecs) and each on-call rotation for a service that must stay on private networks is engineering time that recurs. Camunda 8 moves part of that load to the vendor, but you still operate Kubernetes and the search index, so ask which of these tasks the subscription covers. Training is one-time for both sides, but it is larger for Temporal, where developers must learn determinism and workflow versioning in code, while BPMN models can be read by analysts who may already know the notation.

To compare fairly, request a three-year cost model from each side with the same workload assumptions: expected action or instance volume, retention period, number of environments, regions and high-availability requirements. Ask Camunda for the subscription tier, the Enterprise license scope for non-production copies and any charges for support or upgrades. Ask Temporal Cloud for the metered action and storage estimate and the SLA tier. For self-hosting, put a fully loaded engineering rate against the upgrade, on-call and security hours, and confirm your database and search vendor licensing. Costs rise fastest with high event volume, long retention in visibility stores and the number of teams that each need their own namespaces or clusters, so model those inputs before the quote.

How a move from Camunda 8 to Temporal, or the reverse, is structured

The sequence moves a team from an inventory of models and workers to a parallel run and retirement of the old platform, with each step closing on a check the team can verify.

Inventory process models and job workers
The team lists every BPMN and DMN model deployed in Camunda 8, every job worker and connector that completes its tasks, the external systems each worker calls, and the business owners of each process. In the reverse direction, the team lists Temporal workflows, activities, schedules and signal senders. DeployOpen can run this inventory with your engineers as part of a fixed-scope assessment, but your architects must confirm which processes are business-critical. The step is done when every process has an owner, a worker list and a named dependency map that the team has reviewed.
Classify processes as code-first or business-visible
The team sorts each process by who must read and change it. Processes that business analysts review, audit or edit in a diagram usually stay as BPMN models, while service-heavy sequences that engineers version and test like application code fit Temporal workflows better. Some processes may split, with a BPMN front end for approvals and code-first activities behind it. The output is a written classification with a reason for each process, signed off by the process owner and the engineering lead.
Decide the in-flight instance strategy
For every running instance, the team chooses between letting it finish on the current platform and migrating its state. Finishing in place keeps the old platform running until the last instance completes, which avoids state translation but extends the period of dual operation. Migrating state requires mapping variables, timers and pending tasks between two different execution models, and the team should confirm with the vendors what each side can export. The decision is recorded per process, with the date the old platform stops accepting new starts.
Build the target environment with security settings
The team deploys the target platform in its own infrastructure. For self-hosted Temporal, that means choosing a persistence store and an advanced visibility store from the supported lists, placing services on hosts not reachable from the public internet, enabling mTLS, configuring an Authorizer and a ClaimMapper so access is not open by default, and wiring OIDC single sign-on for the Web UI. Payload encryption through a custom codec is decided here if workflow data is sensitive. The step is done when a security review confirms that the default no-authentication setting has been replaced and that the environment passes the team's own hardening checklist.
Pilot one representative process
The team picks one process that exercises retries, timers, human tasks or external calls and rebuilds it on the target platform. The pilot checks that failures retry as designed, that the monitoring the team relies on has an equivalent, and that the business owner can see the state they need. Engineers record defects and gaps against the classification from earlier. The pilot closes when the owner accepts the behavior in writing and the team has a run book for on-call support.
Run both platforms in parallel
New instances of migrated processes start on the target platform while the old platform keeps finishing its in-flight work. The team compares outcomes, latency, error rates and operator effort for each migrated process, and checks that upstream and downstream systems behave the same under both paths. Parallel operation doubles the platform operations load, so the team should agree in advance on who owns each platform during this phase and what happens if a process must roll back.
Cut over and retire the old platform
Once each process meets its acceptance criteria, the team stops starting new instances on the old platform, waits for the remaining instances to complete or completes the state migration, and then decommissions the old workers, databases and access. The retirement checklist covers credentials, backups kept for the required retention period, audit logs, and removal of licenses or subscriptions that no longer apply. Completion is confirmed when no active instances remain, the backups are verified and the decommission record is signed.

When a BPMN engine such as Flowable is the better fit

Choose a BPMN engine such as Flowable when the process is a business workflow that analysts, auditors or process owners need to read as a diagram, and when the engine should live inside your application or behind a plain REST service rather than as a separate cluster. Flowable open source is Apache 2.0 licensed and covers BPMN process execution, CMMN case management and DMN decision rules in one project, with Java and REST APIs. It can be embedded in Java SE, servlet containers, Spring applications or Java EE servers, or run as the Flowable REST application. Spring Boot starters exist for each engine and for REST, and the actuator endpoint at /actuator/flowable exposes running processes for monitoring.

Plan for how the engine coordinates nodes. The async executor runs timers and asynchronous jobs from a thread pool and uses lock owners and lock expiration times stored in the database, so expired locks are recovered and other nodes pick up the work. Check that your database type is on the supported list (H2, MySQL, Oracle, PostgreSQL, DB2 and Microsoft SQL Server) and test failover by stopping a node mid-timer. Identity is the other integration point: the docs describe replacing the identity service with an LDAP reference implementation or your own, so confirm how your directory maps to candidate groups before you commit.

Check versions before you pick a release line. Flowable 7.0.0 moved to Java 17, Spring Boot 3 and Jakarta EE, and removed the UI applications, the form and content engines, Mule integration and async history, so teams that relied on bundled UIs or async history need their own tooling. Flowable 8.0.0 was released on February 27, 2026, and requires Spring Framework 7 and Spring Boot 4 with no backward compatibility for Spring Boot 3. Commercial Flowable editions (Flowable Work, Engage, Orchestrate and Design) add low-code modeling, visual debugging and monitoring on the same engines. The open-source interface may be less polished than Camunda Operate and Tasklist, so run a pilot with your operations and business users to confirm that monitoring and task handling meet their needs.

Four questions that settle the choice

Camunda 8 and Temporal solve different problems, so the choice usually turns on who owns the process definition, who must see it, how the team feels about the production license, and whether the engine has to live inside the application. Work through the four questions in order and note which answers point the same way.

Who authors and changes the process

If business analysts or process owners draw and revise the flow, a BPMN model in Camunda 8 gives them a shared artifact that engineers implement through job workers. If the flow is a developer-owned sequence of code with retries and compensation, Temporal's workflows as code keep the definition in the same language and review process as the rest of the service. Ask who must merge a change to the flow and how often it changes. Frequent business-side edits point toward BPMN, and changes that always ship with code point toward Temporal.

How much must be visible to business users

Business visibility is the main reason teams choose a BPMN engine. Camunda 8 ships modeling and operational tooling that lets non-engineers follow instances and see where work sits. Temporal's Web UI is aimed at engineers debugging executions, so business stakeholders usually need a separate reporting layer built on visibility data. Check which dashboards, task queues and audit views the operations and compliance teams need on day one, and whether they will accept a developer-facing console.

Comfort with Camunda's production license

Production use of Camunda 8 Self-Managed requires an Enterprise license. The Camunda License v1 covers the source of the core components from Camunda 8.6, and the non-production license is limited to development and testing. Temporal's server is MIT licensed, and Temporal Cloud is a separate paid managed service. If procurement cannot accept a source-available license in production, Temporal's MIT server or an Apache-2.0 BPMN engine such as Flowable may be the simpler path. Confirm the license terms with counsel and with Camunda before you commit to an architecture.

Need for an embedded engine

An embedded engine runs inside the application process, while Camunda 8 and Temporal run as separate clusters. If your Java application depends on in-process delegates and transactions tied to the engine, Camunda 8 does not offer that model, and Flowable or CIB seven keep it. Temporal is a remote service that your code calls through an SDK, which suits services that already run as independent deployables. List the transactional boundaries and the operational pieces you can afford to run as separate clusters before deciding.

How DeployOpen scopes a workflow platform evaluation

DeployOpen plans, implements, hardens, backs up and documents self-hosted open-source platforms inside the client's own infrastructure, including their cloud accounts, data centers or air-gapped networks. For a Camunda 8 versus Temporal decision, that means the evaluation starts with a written question: which workflows need a business-readable BPMN model that operations and process owners can inspect, and which need code-first durable execution owned by the engineering team. Those two answers change the architecture, the staffing and the cost profile far more than any feature checklist does.

Most DeployOpen engagements are fixed-scope, so scope, deliverables and timelines are agreed in writing before work starts. For this comparison, a useful written scope names the specific components in play: for Temporal, the server deployment method (Docker Compose, Go binaries, or Helm charts with a chart version at or above 0.73.1 for server images 1.30 and later), the persistence store, the visibility store, the Authorizer and ClaimMapper configuration, and the codec server for payload encryption. For Camunda 8, it names the Self-Managed edition, the Enterprise license position for production, and the Operate, Tasklist and Identity components. Each named item becomes a deliverable that can be checked.

A quote follows from that written scope, and DeployOpen does not publish a price list. Ask the vendor and your own platform team to confirm the current license terms before scoping, because the Camunda licensing position and the Temporal Cloud pricing page can change. Then decide what the scope must include: the first production cluster, an upgrade path under the vendor's stated version rules, backup and restore testing, and documentation your auditors can read. Treat these as the inputs to a quote, not as assumptions DeployOpen has already priced.

How DeployOpen helps you evaluate, implement or migrate

DeployOpen is a Chainscore Labs company that plans, implements, hardens, backs up and documents self-hosted open-source platforms inside your own cloud accounts, data centers or air-gapped networks. For Camunda 8 vs Temporal, we start by agreeing on which workload is being modeled, who needs to see it, and where the platform must run.

How we scope

Written scope names the process or workflow types, the business users who need visibility, and the target hosting environment.
Scope records whether BPMN models must stay editable by analysts or whether code-first workflows suit the engineering team.
Production licensing questions for Camunda 8 Self-Managed are listed for your own confirmation with the vendor before any build starts.
Engagements are fixed-scope, with deliverables and timelines agreed in writing before work begins.

How we build

We deploy the chosen engine on your Kubernetes clusters or virtual machines, with persistence and visibility stores sized to your workload.
Access control is configured from the start, including mTLS, an Authorizer and identity integration, rather than left at defaults.
Worker or service task code, retry policies and timeout handling are implemented and tested against the agreed process scenarios.
Security testing of the application and APIs can run alongside the build, covering the workflow endpoints and worker interfaces.

How we hand over

Deliverables include architecture notes, deployment runbooks, configuration records and the model and code inventory.
Operating procedures cover upgrade order, backup and restore of the persistence store, and monitoring of workflow executions.
Compliance readiness evidence, such as access reviews and change records, is prepared for assessment by your independent auditors.
Handover sessions walk your platform and engineering teams through the running system before the engagement closes.

How we support

Ongoing support, upgrades and continuous testing are available as retainers after handover.
Upgrades follow the vendor's published order, for example one minor version at a time with schema changes applied first where release notes require it.
Retainers can cover vulnerability follow-up, backup verification and periodic security testing of the workflow platform.
Cost drivers to raise in a quote include the number of environments, the scope of integrations and the support hours required.

Camunda 8 vs Temporal