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Apache Kafka

The most recommended of 19 message brokers

Durable, horizontally scalable messaging and event streaming platform that people reuse across many systems. Caveat: painful to operate and usually only worth it at large scale.

Durable, horizontally scalable messaging and event streaming platform that people reuse across many systems. Caveat: painful to operate and usually only worth it at large scale.

108 people gave an opinion

recommend it
53
criticize it
55
approval share
49%
Each figure is one person. RecommendsCriticizes

Recommended in 12 of 13 months

  1. November 2025: recommended
  2. December 2025: recommended
  3. January 2026: recommended
  4. February 2026: recommended
  5. March 2026: recommended
  6. April 2026: recommended
  7. May 2026: recommended
  8. June 2026: recommended
  9. July 2026: recommended
  10. August 2026: recommended
  11. September 2026: recommended
  12. October 2026: recommended
  13. November 2026: not recommended (month in progress)

Why it doesn’t carry the badge

  • 53 people recommend itNeeds 10 or more, met.
  • 0.9 recommenders for every criticNeeds 2 to 1 or better, not met.
  • Recommended in 12 of 13 monthsNeeds 4 or more, met.

The same three rules apply to every product, and the badge can’t be bought. How the badge works

What people say about it

The reasons people give, with the number of comments that give each one. Open a reason to read what they said.

Why people recommend it

Each mark is one comment

  • Scales horizontally under heavy load

    “From a performance POV, Kafka scales horizontally, and appends only need negligible locking.”

    Comment from 21 Oct 2026 in “Revolut down as users report app not working”

    “Kafka already solves this problem and gives me message durability, near infinite scale out”

    Comment from 8 Dec 2025 in “IBM to acquire Confluent”

    “made Twitter stable under the load of several hundred million users”

    Comment from 18 Aug 2026 in “Ask HN: GitHub employees what's going on? Why?”
  • Battle-tested with many known solutions

    “a benefit of using well known software like Kafka is a lot of problems you will run into have solutions/guidance already available”

    Comment from 19 Aug 2026 in “PostgreSQL for Everything”

    “We built TBMQ on Kafka because it's battle-tested at scale across the industry”

    Comment from 3 Mar 2026 in “Show HN: TBMQ – Live demo of a high-performance MQTT broker built on Kafka”

    “OSS projects that scale well, say Linux, Postgres, Kafka, redis”

    Comment from 29 Apr 2026 in “Ghostty is leaving GitHub”
  • Useful features out of the box

    “Kafka has that out of the box. Where kafka starts to come apart is how to set it up.”

    Comment from 4 Dec 2025 in “Show HN: Walrus – a Kafka alternative written in Rust”

    “anything else a Kafka-like comes with out of the box”

    Comment from 2 Jul 2026 in “Postgres transactions are a distributed systems superpower”

What people warn about

Each mark is one comment

  • Heavy to operate and resource-hungry

    “It's very good at what it does, but painful to manage and usually not worth the pain for anyone who's not in a mega enterprise.”

    Comment from 20 Mar 2026 in “Java Is Fast. Your Code Might Not Be”

    “Kafka I will grant you is a lot to operate, but I would not choose Kafka unless I have a Kafka-shaped problem”

    Comment from 21 Aug 2026 in “PostgreSQL for Everything”

    “Kafka is... a lot. If you need what it provides, then it's great.”

    Comment from 11 Apr 2026 in “Keeping a Postgres Queue Healthy”
  • Confusing APIs and setup gotchas

    “One of the secret traps of Kafka is that it tried to be a collection of nice primitives without that much built on top”

    Comment from 3 Nov 2025 in “"You Don't Need Kafka, Just Use Postgres" Considered Harmful”

    “Kafka's apis are full of landmines and gotchas, and you can do much better from a UX perspective”

    Comment from 26 Aug 2026 in “Show HN: PicoMQ – Durable Streams over HTTP, on object storage”

    “devs trip over Kafka topics, partitions and offsets when their throughput is low enough”

    Comment from 8 Dec 2025 in “IBM to acquire Confluent”
  • Buggy clients and poor performance

    “Some poor quality software with bad performance, but an established piece of tech regardless.”

    Comment from 16 Jan 2026 in “Show HN: Ayder – HTTP-native durable event log written in C (curl as client)”

    “Kafka clients for several languages are pretty much unusable due to bugs and/or performance”

    Comment from 2 Sep 2026 in “Apache Iggy, a message streaming platform in Rust, graduates to an Apache TLP”
  • Head-of-line blocking under concurrency

    “Kafka for head of line (HoL) blocking under concurrent events can be an issue though”

    Comment from 14 Dec 2025 in “How exchanges turn order books into distributed logs”

    “It's the very architecture of Kafka itself due to the notorious head of line problem”

    Comment from 4 Dec 2025 in “Show HN: Walrus – a Kafka alternative written in Rust”

Other message brokers people recommend

The four most recommended other message brokers, with the same counts for each, so you can compare like for like. The tick on each bar marks the 2 to 1 line the badge needs.

Apache Kafka compared with 4 alternatives
ProductRecommendCriticizeApprovalMonthsOwnedBadge
Apache KafkaThis page535549%12——
NATS341668%97.5 yrs3 ownersApproved
Amazon SQS181456%8——
Redpanda17481%7—Approved
RabbitMQ131057%9——
See all 19 message brokers, ranked

What people said

40 of the 120 comments that mention it, newest first. Each links to the original comment.

“From a performance POV, Kafka scales horizontally, and appends only need negligible locking.”

RecommendsComment from 21 Oct 2026 in “Revolut down as users report app not working”

“a startup that uses Cloudflare for everything except for Kafka”

MixedComment from 1 Oct 2026 in “Cloudflare K2: serverless event streams”

“you let Kafka hold onto new data until batch insertions can catch up”

RecommendsComment from 11 Sep 2026 in “I've operated petabyte-scale ClickHouse clusters for 5 years”

“Kafka clients for several languages are pretty much unusable due to bugs and/or performance”

CriticizesComment from 2 Sep 2026 in “Apache Iggy, a message streaming platform in Rust, graduates to an Apache TLP”

“Kafka's apis are full of landmines and gotchas, and you can do much better from a UX perspective”

CriticizesComment from 26 Aug 2026 in “Show HN: PicoMQ – Durable Streams over HTTP, on object storage”

“Kafka I will grant you is a lot to operate, but I would not choose Kafka unless I have a Kafka-shaped problem”

MixedComment from 21 Aug 2026 in “PostgreSQL for Everything”

“a benefit of using well known software like Kafka is a lot of problems you will run into have solutions/guidance already available”

RecommendsComment from 19 Aug 2026 in “PostgreSQL for Everything”

“made Twitter stable under the load of several hundred million users”

RecommendsComment from 18 Aug 2026 in “Ask HN: GitHub employees what's going on? Why?”

“The second biggest use is Apache Spark/Kafka, but with LLMs now, you can pretty much re implement all of that functionality in pure C.”

MixedComment from 7 Aug 2026 in “Oracle bans AI-generated code from OpenJDK”

“systems like Kafka give you practical implementations”

RecommendsComment from 3 Jul 2026 in “Postgres transactions are a distributed systems superpower”

“Kafka is actually distributed tech. You can lose nodes and keep operating.”

RecommendsComment from 3 Jul 2026 in “Postgres transactions are a distributed systems superpower”

“anything else a Kafka-like comes with out of the box”

RecommendsComment from 2 Jul 2026 in “Postgres transactions are a distributed systems superpower”

“they build world class software that backs massive systems like elastic search, Kafka”

RecommendsComment from 22 Jun 2026 in “Deno Desktop”

“OSS projects that scale well, say Linux, Postgres, Kafka, redis”

RecommendsComment from 29 Apr 2026 in “Ghostty is leaving GitHub”

“Kafka is... a lot. If you need what it provides, then it's great.”

MixedComment from 11 Apr 2026 in “Keeping a Postgres Queue Healthy”

“It's very good at what it does, but painful to manage and usually not worth the pain for anyone who's not in a mega enterprise.”

MixedComment from 20 Mar 2026 in “Java Is Fast. Your Code Might Not Be”

“We built TBMQ on Kafka because it's battle-tested at scale across the industry”

RecommendsComment from 3 Mar 2026 in “Show HN: TBMQ – Live demo of a high-performance MQTT broker built on Kafka”

“it made the immutable approach easier than the spaghetti alternative”

RecommendsComment from 1 Mar 2026 in “Mutability Considered Harmful”

“very fast to start up (~100ms) and use relatively little memory”

RecommendsComment from 17 Feb 2026 in “Show HN: BlazeMQ – 52KB Kafka-compatible broker in C++20, zero dependencies”

“a pretty fun high-level summary of the underlying idea behind them”

RecommendsComment from 3 Feb 2026 in “Surviving the Streaming Dungeon with Kafka Queues”

“doubling kafka provisioned capacity is simpler, easier, cheaper, and more reliable approach”

RecommendsComment from 26 Jan 2026 in “Using PostgreSQL as a Dead Letter Queue for Event-Driven Systems”

“it has caught up fairly well to these alternatives re: memory and startup time”

RecommendsComment from 25 Jan 2026 in “Small Kafka: Tansu and SQLite on a free t3.micro”

“Some poor quality software with bad performance, but an established piece of tech regardless.”

MixedComment from 16 Jan 2026 in “Show HN: Ayder – HTTP-native durable event log written in C (curl as client)”

“Kafka is taking an interesting turn however with the KIP-932 "Queues for Kafka" initiative”

RecommendsComment from 15 Jan 2026 in “I Love You, Redis, but I'm Leaving You for SolidQueue”

“An ecosystem building on Kafka clients libraries with various non-Kafka servers would work fine too, but we didn't figure out how to easily do that.”

MixedComment from 13 Jan 2026 in “Show HN: Ayder – HTTP-native durable event log written in C (curl as client)”

“Kafka for head of line (HoL) blocking under concurrent events can be an issue though”

MixedComment from 14 Dec 2025 in “How exchanges turn order books into distributed logs”

“A Kafka consumer does a lot of work coordinating distributed clients in a group, managing the current offset, balancing the readers across partitions”

RecommendsComment from 9 Dec 2025 in “IBM to acquire Confluent”

“If you wanted something fully durable with a stronger persistence story you'd probably use Kafka anyhow.”

RecommendsComment from 8 Dec 2025 in “Jepsen: NATS 2.12.1”

“Rewriting the code at that point may be less costly than operating Kafka in the interim.”

CriticizesComment from 8 Dec 2025 in “IBM to acquire Confluent”

“Kafka already solves this problem and gives me message durability, near infinite scale out”

RecommendsComment from 8 Dec 2025 in “IBM to acquire Confluent”

“devs trip over Kafka topics, partitions and offsets when their throughput is low enough”

CriticizesComment from 8 Dec 2025 in “IBM to acquire Confluent”

“Kafka (the messaging/streaming platform) has finally found its natural home.”

RecommendsComment from 8 Dec 2025 in “IBM to acquire Confluent”

“portfolio is starting to look interesting again, especially if it includes Kafka”

RecommendsComment from 8 Dec 2025 in “IBM Nears Roughly $11B Deal for Confluent”

“Kafka is a very resource-heavy application that's worth replacing with leaner options”

CriticizesComment from 7 Dec 2025 in “The end of the road for Kafka-delta-ingest”

“Kafka has that out of the box. Where kafka starts to come apart is how to set it up.”

MixedComment from 4 Dec 2025 in “Show HN: Walrus – a Kafka alternative written in Rust”

“operational overhead is much lower than running a full Kafka stack”

MixedComment from 4 Dec 2025 in “Show HN: Walrus – a Kafka alternative written in Rust”

“It's the very architecture of Kafka itself due to the notorious head of line problem”

CriticizesComment from 4 Dec 2025 in “Show HN: Walrus – a Kafka alternative written in Rust”

“Scaling issues can develop and we in Ops catch flak for your bad design choices.”

RecommendsComment from 17 Nov 2025 in “Listen to Database Changes Through the Postgres WAL”

“One of the secret traps of Kafka is that it tried to be a collection of nice primitives without that much built on top”

MixedComment from 3 Nov 2025 in “"You Don't Need Kafka, Just Use Postgres" Considered Harmful”

“Going through Kafka allows for reply and setting up multiple independent consumers for the same change event stream.”

MixedComment from 3 Nov 2025 in “"You Don't Need Kafka, Just Use Postgres" Considered Harmful”

Counts come from 1,795,640 Hacker News comments, November 2025 to November 2026. How we count. Report a mistake.