Maxwell alternative — Maxwell vs Skippr
Maxwell (Maxwell's Daemon) is Apache-2.0 MySQL binlog CDC. One Java process reads the binlog as a replica and writes JSON. Current release is 1.46.0 (23 Sep 2026). Producers are stdout, Kafka, Kinesis, RabbitMQ, Redis, and a few peers. Bootstrap copies a table once, then the binlog takes over. 1.45.0 decompresses MySQL 8.4 binlogs. Schema lives in a maxwell database (you can bootstrap from a replica that does not hold that schema). There is no cluster mode. Throughput is one parser. There is no Postgres source. There is no Iceberg sink. The lake starts after you consume the JSON. This is not a Streamhouse. There is no Iceberg ∪ WAL.
Skippr is an open Streamhouse you run as one Rust binary. Write skippr.yml (or the same thing in Python), discover, sync. You query live state over Iceberg ∪ WAL, and the history is ordinary Iceberg in your bucket. No Maxwell schema DB. ELT into a warehouse is one path, not the product.
| Feature | Skippr | Maxwell |
|---|---|---|
| Deploy | Single Rust binary, your VPC or on-prem | One JVM. Docker osheroff/maxwell on 1.46.0 |
| Schema | In-stream evolution, sibling columns | JSON fields from binlog. DDL updates Maxwell's schema store |
| Storage | Open Iceberg on Parquet you own | The producer dest. Iceberg is a sink you add |
| CDC | Log-based; fails closed if the dest cannot honour | MySQL binlog. Bootstrap then stream. Not Postgres |
| Query | skipprd query on Iceberg ∪ WAL; history in any Iceberg engine | After Kafka/Kinesis. Maxwell is the parse, not the lake |
| Pricing | Free self-hosted engine | Apache-2.0. Pay the JVM and the dest. |
What Maxwell is good at
A MySQL binlog you want as JSON on a topic tonight, without ZooKeeper or Connect. That is the product. Bootstrap plus one process is why small teams still run it. If the job is "this binlog as JSON on Kafka," that is a real product.
Where the job is wider
Maxwell is a MySQL parser. It is not a Streamhouse. There is no Iceberg ∪ WAL. There is no skipprd query on in-flight rows. Iceberg is a Kafka Connect or Flink job after Maxwell. One thread is the cap.
The schema database is the ops. Lose it and bootstrap again. Skippr will not emit Maxwell JSON. Skippr also will not replace a Maxwell topic that already feeds many consumers. Canal is the clustered MySQL sibling. Debezium is the multi-database sibling.
If the job is "Maxwell MySQL CDC we already staff," Maxwell is the narrower tool. If the job is live SQL on Iceberg you run, Maxwell was never that.
Getting started
Install skipprd from the install guide, or pip install skippr. The three tabs write the same skippr.yml. Then discover, sync, and query.
skippr:
workspace: analytics
skipprd_el_storage_mode: local
pipelines:
orders:
data_source: data_sources.app_db
data_sink: data_sinks.lake
data_sources:
app_db:
Postgres:
host: db.internal
user: skippr_reader
password: ${APP_DB_PASSWORD}
database: app
tables: [orders, customers]
cdc_mode: snapshot_then_cdc
data_sinks:
lake:
AthenaIceberg:
warehouse: s3://my-iceberg-warehouse/
glue_database_name: analytics
athena_workgroup_name: primary
athena_results_s3_bucket: my-athena-results
region: us-east-1
schema_sink: schema_sinks.lake_schema
schema_sinks:
lake_schema:
AthenaIceberg:
warehouse: s3://my-iceberg-warehouse/
glue_database_name: analytics
athena_workgroup_name: primary
athena_results_s3_bucket: my-athena-results
region: us-east-1skipprd --workspace analytics --storage-mode local connect data-source postgres \
--pipeline orders \
--name app_db \
--host db.internal \
--user skippr_reader \
--password '${APP_DB_PASSWORD}' \
--database app \
--tables orders \
--tables customers \
--cdc-mode snapshot_then_cdc
skipprd connect data-sink athenaiceberg \
--pipeline orders \
--name lake \
--warehouse s3://my-iceberg-warehouse/ \
--glue-database-name analytics \
--athena-workgroup-name primary \
--athena-results-s3-bucket my-athena-results \
--region us-east-1
skipprd connect schema-sink athenaiceberg \
--pipeline orders \
--name lake_schemafrom skippr import (
Config,
DataSinkAthenaIceberg,
DataSourcePostgres,
DataSourcePostgresSourceCdcMode,
EnvRef,
LocalStorage,
Pipeline,
)
cfg = Config().workspace("analytics").storage(LocalStorage())
app_db = cfg.data_source(
"app_db",
DataSourcePostgres(
host="db.internal",
user="skippr_reader",
password=EnvRef("APP_DB_PASSWORD"),
database="app",
tables=["orders", "customers"],
cdc_mode=DataSourcePostgresSourceCdcMode.SNAPSHOTTHENCDC,
),
)
lake = cfg.data_sink(
"lake",
DataSinkAthenaIceberg(
warehouse="s3://my-iceberg-warehouse/",
glue_database_name="analytics",
athena_workgroup_name="primary",
athena_results_s3_bucket="my-athena-results",
region="us-east-1",
),
schema_sink="lake_schema",
)
cfg.pipeline("orders", Pipeline(data_source=app_db, data_sink=lake))
cfg.save("skippr.yml")export APP_DB_PASSWORD='your-postgres-password'
skipprd discover --pipeline orders
skipprd sync --pipeline orders --once
skipprd query "SELECT count(*) FROM analytics.orders"Which to choose
Choose Maxwell if you want MySQL binlog as JSON on Kafka or Kinesis, and the topic after parse is enough.
Choose Skippr if you want one binary, live SQL, and Iceberg files that stay yours. Skippr will not run Maxwell.
Install from Install. Connector and query reference live in Developer Docs. For optional onboarding in your VPC, Enterprise Jumpstart or Contact.
