Databases · alternatives
Alternatives to Solace PubSub+
20 databases tools sit alongside Solace PubSub+ in this directory. Below is what separates each from Solace PubSub+ on the figures we hold, price, model, tier count and rating, and a direct comparison for every one.
- Alternatives listed
- 20
- With a free tier
- 15
- Cheaper to start
- -
- Solace PubSub+ starts at
- Free
Why people look past Solace PubSub+
Only what the record supports. Each point below is a figure on the Solace PubSub+ entry measured against the tools listed beside it.
Cost climbs steeply across the tiers
Solace PubSub+ publishes 4 tiers, from Free up to On request. Teams that outgrow the entry plan can find the next rung a large step, the Solace PubSub+ pricing page breaks each one down.
What each alternative does differently
Ordered by the aggregated rating on each catalogue entry. Differences are drawn from price, pricing model, tier count and rating, the fields the category listing carries. For a feature-level difference, follow the head-to-head link on each card: those pages read both full records.
Open-source distributed event streaming platform
- Sold on a Open source, no licence fee; managed services billed separately model rather than quote.
- 1 tier to Solace PubSub+'s 4.
Open-source message broker supporting AMQP and other protocols
- Sold on a Open source, no licence fee; managed services billed separately model rather than quote.
- 1 tier to Solace PubSub+'s 4.
Cloud-native messaging and streaming with separated storage
- Sold on a Open source, no licence fee model rather than quote.
- 1 tier to Solace PubSub+'s 4.
MPP analytical database with a MySQL wire protocol and sub-second aggregation on wide tables
- Sold on a Open source, no licence fee model rather than quote.
- 1 tier to Solace PubSub+'s 4.
The Meta-lineage distributed SQL query engine, distinct from the Trino fork
- Sold on a Open source, no licence fee model rather than quote.
- 1 tier to Solace PubSub+'s 4.
Erlang MQTT broker for large IoT fleets, relicensed to BSL with production free use limited to one node
- Publishes an entry price of $234/month, where Solace PubSub+ does not.
- Sold on a Per month by connection and session volume model rather than quote.
Every Solace PubSub+ alternative at a glance
A dash means the catalogue entry carries no figure, not that the answer is nothing.
| Tool | Entry price | Model | Tiers | Head to head |
|---|---|---|---|---|
| Solace PubSub+ (this page) | Free | Quote | 4 | |
| Apache KafkaIf your workload is durable log streaming and reprocessing rather than multi-protocol routing | Free | Open source, no licence fee; managed services billed separately | 1 | vs Solace PubSub+ |
| RabbitMQIf you need conventional enterprise queuing at a fraction of the cost and can accept fewer protocols | Free | Open source, no licence fee; managed services billed separately | 1 | vs Solace PubSub+ |
| Apache PulsarIf you want multi-tenant streaming with geo-replication under an open source licence | Free | Open source, no licence fee | 1 | vs Solace PubSub+ |
| Apache Doris | Free | Open source, no licence fee | 1 | vs Solace PubSub+ |
| Presto | Free | Open source, no licence fee | 1 | vs Solace PubSub+ |
| EMQX | Free, then $234/month | Per month by connection and session volume | 4 | vs Solace PubSub+ |
| StarRocks | Free | Open source, no licence fee | 2 | vs Solace PubSub+ |
| Tinybird | Free, then $25/month | Per month by compute and storage | 4 | vs Solace PubSub+ |
| Dremio | Free, then $0.2/hour | Per Dremio Compute Unit consumed | 3 | vs Solace PubSub+ |
| VerneMQ | Free | Quote | 3 | vs Solace PubSub+ |
| Timeplus | Free, then $199/month | Per month for cloud, quoted for self-hosted | 3 | vs Solace PubSub+ |
| RisingWave | Free, then $0.227/hour | Per RisingWave Unit hour | 4 | vs Solace PubSub+ |
| NATS | Free | Open source, no licence fee | 1 | vs Solace PubSub+ |
| Redpanda | Free | Source-available community edition with paid enterprise and cloud tiers | 1 | vs Solace PubSub+ |
| Canary Labs | $3000/year | Per tag band per year | 4 | vs Solace PubSub+ |
| Instaclustr | On request | Quote | 1 | vs Solace PubSub+ |
| Immuta | On request | Quote | 1 | vs Solace PubSub+ |
| Privacera | On request | Quote | 1 | vs Solace PubSub+ |
| TIBCO Enterprise Message Service | On request | Quote | 1 | vs Solace PubSub+ |
| Apache Solr | Free | Open source, no licence fee | 1 | vs Solace PubSub+ |
Ratings are aggregated from third-party sources and imported with each catalogue entry; Softwr hosts no reviews of these products. How each figure is used is set out on the Solace PubSub+ badges page.
Cheaper ways to solve the same problem
Free to start (15)
These publish a tier that costs nothing, so they can be evaluated before any money changes hands.
- Apache Kafka , Free
- RabbitMQ , Free
- Apache Pulsar , Free
- Apache Doris , Free
- Presto , Free
- EMQX , Free, then $234/month
- StarRocks , Free
- Tinybird , Free, then $25/month
What you would be giving up
Solace PubSub+ is most often brought in for a bank building an event mesh across regions where a java jms application and an mqtt mobile client must share the same topic space, an exchange or trading platform with a latency budget that needs the hardware appliance rather than a software broker, an airline distributing operational events to ground systems, aircraft and partner apis over different protocols, a manufacturer bridging factory mqtt telemetry into an enterprise kafka estate without writing translation services. Anything replacing it has to cover the ones you actually depend on, and a cheaper tool that misses one of them is not cheaper.
Two things this page cannot settle. It compares on price, model, tier count and rating, because those are the fields the category listing carries, feature-level differences need both full records, which is what the head-to-head pages load. And the ratings are third-party aggregates imported with each entry rather than reviews written here, so a 0.2 difference between two tools is noise rather than a finding.
If Solace PubSub+ is broadly right and the question is cost, the Solace PubSub+ pricing breakdown covers every tier and what each one adds. If you want the whole field rather than a shortlist, the Databases category lists everything the directory holds, and best databases tools ranks them.
Solace PubSub+ runs on linux, docker, kubernetes, cloud, hardware appliance. Platform coverage is not carried on the category listing for the alternatives, so it is one more thing to check on each head-to-head page rather than here.
Questions about Solace PubSub+ alternatives
- What are the main alternatives to Solace PubSub+?
- 20 other databases tools are listed in this directory, led by Apache Kafka, RabbitMQ, Apache Pulsar, Apache Doris. They are ordered by the aggregated rating on each catalogue entry, not by any Softwr ranking.
- What is the best free alternative to Solace PubSub+?
- 15 of the alternatives listed here can be used without paying: Apache Kafka, RabbitMQ, Apache Pulsar, Apache Doris, Presto.
- Why do people look for an alternative to Solace PubSub+?
- On the figures on record, one thing stands out: cost climbs steeply across the tiers. Each is set out with the numbers behind it above.
- What would I give up by switching from Solace PubSub+?
- Solace PubSub+ is most often brought in for a bank building an event mesh across regions where a java jms application and an mqtt mobile client must share the same topic space, an exchange or trading platform with a latency budget that needs the hardware appliance rather than a software broker, an airline distributing operational events to ground systems, aircraft and partner apis over different protocols, a manufacturer bridging factory mqtt telemetry into an enterprise kafka estate without writing translation services. Anything you replace it with has to cover the ones you actually rely on, the side-by-side comparisons linked from each alternative below put the two feature records against each other.
- Is there an open-source alternative to Solace PubSub+?
- None of the databases tools listed here are recorded as open source. That is what the licence field on each entry says, and the field is not always filled in, so it is worth checking directly for any tool you are serious about.
- How were these Solace PubSub+ alternatives chosen?
- They are the tools filed in the same category, Databases, ordered by the aggregated rating on each entry. There is no editorial shortlist, and nothing on this page is paid: no sponsored placement runs on alternatives pages and the order cannot be bought. Softwr has not used these products.
- Where can I compare Solace PubSub+ against one of these directly?
- Every alternative below has a side-by-side page against Solace PubSub+ covering price, platforms, features and what each one is used for. Those pages read the full record for both products rather than the summary shown here.
- Does this list cover every databases tool?
- No. It covers what this directory holds in the Databases category, 20 tools beside Solace PubSub+. The category page lists the rest of the catalogue as it grows.