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Head-to-head · Enterprise Service Bus Software

Talend ESB vs OpenCelium

  • Updated Oct 2026
  • Both researched from official sources
  • 5 checks side by side
Higher score Talend ESB #5 in Enterprise Service Bus Software 8.7/10 Pricing on request ✓ 4 of 4 features Contact Qlik
OpenCelium #11 in Enterprise Service Bus Software 7.4/10 Free plan Free plan✓ 2 of 4 features Visit OpenCelium

Talend ESB leads on 2 checks, OpenCelium on 1, and 2 are even. Who comes out ahead on the 5 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreTalend ESB · 8.7/10
  • Free planonly OpenCelium
  • Most featuresTalend ESB · 4 of 4

Talend ESB scores higher on our rubric for enterprise service bus software: 8.7 against 7.4 out of 10; our editors rank them #5 and #11.

OpenCelium offers free plan; Talend ESB doesn't publish it. Talend ESB offers queue integration; OpenCelium doesn't publish it. Talend ESB offers high availability; OpenCelium doesn't publish it.

Talend ESB is the better fit for teams building SOAP and REST integration routes. OpenCelium is the better fit for small teams automating API integrations on a budget.

  • Talend ESB fits best

    Teams building SOAP and REST integration routes

  • OpenCelium fits best

    Small teams automating API integrations on a budget

Advertiser disclosure: iTechGuides is reader-supported. We may earn a commission when you click some links. How we rank.

Side by side

Feature Talend ESB 8.7/10 Visit ↗ OpenCelium 7.4/10 Visit ↗
At a glance
Editor score 8.7 7.4
Ranking #5 in Enterprise Service Bus Software #11 in Enterprise Service Bus Software
Best for Teams building SOAP and REST integration routes Small teams automating API integrations on a budget
Pricing model Paid Free
Starting price Not published Not published
Free plan Not published ✓ (best)
Free trial — —
Deployment Self-hosted Self-hosted, Cloud
Platforms Windows, macOS, Linux, Web Web
Built for Mid-market, Enterprise Small business, Mid-market, Enterprise
Features Talend ESB 4/4 · OpenCelium 2/4
Message transformation ✓ ✓
Queue integration ✓ (best) Not published
High availability ✓ (best) Not published
Visual flow designer ✓ ✓
Specs
Deployment model On-premises On-premises
Protocol support SOAP over HTTP and SOAP over JMS; SOAP and REST services HTTP, JSON-RPC; documentation also references SOAP
Our review
Pros
  • Graphical route design uses Enterprise Integration Patterns components.
  • Transforms messages and supports SOAP over JMS transport.
  • Talend Runtime supports failover and load balancing across instances.
  • Visual multi-step workflows support branching, loops, and data mapping.
  • Run workflows manually, on a schedule, or from a webhook.
  • The Open plan includes all connectors and 25,000 API Ops/month.
Cons
  • Self-hosted deployment calls for an organization's own runtime environment.
  • Pricing uses a contact-sales model.
  • Its focus is service and message integration rather than broader platform needs.
  • Its focus is API workflows rather than a traditional message-queue bus.
  • The Open plan is capped at 25,000 API Ops/month.
  • Paid plans add allowances and support, but prices are not stated here.
Our verdict

Talend ESB, from Qlik, is an enterprise integration product for building web services and message-mediation routes. Talend Studio supports SOAP and REST services and graphical route design, while Talend Runtime executes deployed routes and…

Read the review →

OpenCelium connects applications through their APIs using visual workflows. Teams define connectors and API calls, arrange execution order, and add branching, loops, field mapping, and transformations. Workflows can run manually, on a…

Read the review →
  1. Talend ESBEnterprise Service Bus Software 8.7Pricing on request
  2. OpenCeliumEnterprise Service Bus Software 7.4Free plan

Strengths and trade-offs

  • Talend ESB — where it wins

    • Graphical route design uses Enterprise Integration Patterns components.
    • Transforms messages and supports SOAP over JMS transport.
    • Talend Runtime supports failover and load balancing across instances.

    Where it doesn't

    • Self-hosted deployment calls for an organization's own runtime environment.
    • Pricing uses a contact-sales model.
    • Its focus is service and message integration rather than broader platform needs.

  • OpenCelium — where it wins

    • Visual multi-step workflows support branching, loops, and data mapping.
    • Run workflows manually, on a schedule, or from a webhook.
    • The Open plan includes all connectors and 25,000 API Ops/month.

    Where it doesn't

    • Its focus is API workflows rather than a traditional message-queue bus.
    • The Open plan is capped at 25,000 API Ops/month.
    • Paid plans add allowances and support, but prices are not stated here.
  • Talend ESB8.7/10 · Pricing on request

    A self-hosted ESB for graphical SOAP and REST routes, transformation, and runtime failover.

    Contact QlikFull verdict →
  • OpenCelium7.4/10 · Free plan

    An open-source API workflow platform for teams that need visual integrations on a budget.

    Visit OpenCeliumFull verdict →

More comparisons

All enterprise service bus software comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update