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Developer Tools · head to head

GNAT Pro vs Redpanda

GNAT Pro logo

GNAT Pro

Developer Tools

Software development environments and toolchains for Ada, C/C++ and Rust

From
On request
Free plan
No
Visit GNAT ProFull review
Redpanda logo

Redpanda

Databases

Kafka-compatible streaming platform with no ZooKeeper or JVM

From
Free
Free plan
Yes
Visit RedpandaFull review

The short version

  • Redpanda is free; GNAT Pro prices on request.
  • Where GNAT Pro falls short: no pricing published on website; requires contacting AdaCore directly for quotes.
  • Where Redpanda falls short: the community edition is source-available rather than OSI open source, which matters for some procurement.
  • Prices and features on this page were last checked on 13 November 2026.

Where they differ

Only the attributes on which GNAT Pro and Redpanda actually diverge.

Attributes where GNAT Pro and Redpanda differ
AttributeGNAT ProRedpanda
Starting priceOn requestFree
Pricing modelQuoteSource-available community edition with paid enterprise and cloud tiers
Free tierNoYes
PlatformsWebLinux, Self-hosted
CategoryDeveloper ToolsDatabases

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in GNAT Pro

Nothing recorded that Redpanda does not also cover.

Only in Redpanda

  • Kafka API compatible
  • No JVM or ZooKeeper
  • Thread-per-core
  • Built-in HTTP proxy and schema registry

What people use each for

The jobs each tool is most often brought in to do.

GNAT Pro

  • Building certified avionics software meeting DO-178B/C standardsnot Redpanda
  • Developing automotive embedded systems with ISO-26262 compliancenot Redpanda
  • Integrating Ada, C/C++, and Rust components in single codebasenot Redpanda
  • Managing software supply chain vulnerabilities and SBOMsnot Redpanda
  • Supporting long-lived software systems spanning decadesnot Redpanda

Redpanda

  • Kafka workloads where the operational cost of running Kafka is the blockernot GNAT Pro
  • Latency-sensitive streaming where tail latency mattersnot GNAT Pro
  • Smaller teams wanting streaming without a dedicated platform groupnot GNAT Pro

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

GNAT Pro

  • No pricing published on website; requires contacting AdaCore directly for quotes
  • Vendor indicates per-user, per-year subscription model but does not disclose specific costs

Redpanda

  • The community edition is source-available rather than OSI open source, which matters for some procurement
  • Kafka API compatibility is high but not total, and deep ecosystem tools can hit gaps
  • Smaller community than Kafka, so fewer people have solved your problem before
  • Some operational and tiered-storage features are enterprise-only

Pricing, plan by plan

GNAT Pro

On request

No published plan breakdown. See the GNAT Pro review.

Redpanda

Free
  • CommunityFree
    • Kafka-compatible broker
    • Single binary
    • Community support

Which should you pick?

Choose GNAT Pro if

Nothing in the data separates GNAT Pro from Redpanda on the points above - pick on price and on how each one feels to use.

GNAT Pro review

Choose Redpanda if

  • You need kafka api compatible.
  • You want to start without paying.
  • You work on Linux, Self-hosted.
  • You also want no jvm or zookeeper.
Redpanda review

Questions people ask

Is GNAT Pro or Redpanda better?
Neither clearly leads. GNAT Pro starts at On request and Redpanda at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, GNAT Pro or Redpanda?
Redpanda has a free tier; the other does not. Paid plans start at On request for GNAT Pro and Free for Redpanda.
Does GNAT Pro or Redpanda run on more platforms?
GNAT Pro runs on Web. Redpanda runs on Linux, Self-hosted.
Can I use Redpanda for free?
Yes. Redpanda has a free tier, so you can try it without paying. GNAT Pro starts at On request.
What is GNAT Pro best used for?
GNAT Pro is most often used for building certified avionics software meeting do-178b/c standards, developing automotive embedded systems with iso-26262 compliance, integrating ada, c/c++, and rust components in single codebase, managing software supply chain vulnerabilities and sboms. Of those, building certified avionics software meeting do-178b/c standards and developing automotive embedded systems with iso-26262 compliance are not what Redpanda is typically brought in for.
What can GNAT Pro do that Redpanda cannot?
Redpanda covers Kafka API compatible, No JVM or ZooKeeper, Thread-per-core, Built-in HTTP proxy and schema registry.

Answered from the vendors’ own pages

GNAT Pro: How much does GNAT Pro cost?

GNAT Pro pricing is not published on the website. Customers must request a pricing quote by contacting AdaCore directly or speaking with a GNAT Pro expert.

Source
Redpanda: Is Redpanda free?

A community edition is free and source-available. Enterprise features and Redpanda Cloud are paid, and the licence is not OSI open source.

GNAT Pro: What is GNAT Pro licensing model?

GNAT Pro is sold on a per-user, per-year basis with no license locks. Customers can request pricing for their specific needs.

Source
Redpanda: Can I use my Kafka clients?

Yes. Redpanda implements the Kafka API, so existing clients and most tooling connect without changes.

Redpanda: Why remove ZooKeeper and the JVM?

Both are significant sources of Kafka’s operational burden — tuning, coordination and failure modes. Removing them is the core of Redpanda’s pitch.

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