Is Decodable or Windmill better?

Neither clearly leads. Decodable starts at Free and Windmill at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.

Which is cheaper, Decodable or Windmill?

Decodable starts at Free and Windmill at Free.

Does Decodable or Windmill run on more platforms?

Decodable runs on Web, Linux. Windmill runs on web, api, linux, windows, mac.

Can I use Decodable for free?

Both have a free tier, so you can try either at no cost before committing.

What is Decodable best used for?

Decodable is most often used for streaming postgres change data capture into snowflake or iceberg without running debezium and kafka connect yourself, real-time enrichment and filtering of event streams before they reach an expensive warehouse, a team that already writes flink jobs but does not want to operate the cluster, checkpoint store or upgrades, replacing a fragile set of cron jobs and lambda functions that move data between operational systems. Of those, streaming postgres change data capture into snowflake or iceberg without running debezium and kafka connect yourself and real-time enrichment and filtering of event streams before they reach an expensive warehouse are not what Windmill is typically brought in for.

What can Decodable do that Windmill cannot?

Decodable covers Managed Flink, Change data capture, SQL pipelines, Custom Flink jobs. Windmill covers Script-to-workflow engine, Auto-generated UIs, Self-hosted deployment, Git sync.

Automation Integration · head to head

Decodable vs Windmill

Decodable

Automation Integration

Managed Apache Flink and Debezium with credit-based pricing and a free tier

From: Free
Rated: -

Full review Website

Windmill

Automation Integration

Open-source developer platform for building scripts, workflows, and internal apps

From: Free
Rated: -

Full review Website

The short version

Each has a real cost: Decodable credit pricing rewards intermittent work and penalises always-on pipelines: a single small task running continuously costs roughly 86 US dollars a month before any parallelism.; Windmill free self-hosted tier caps SSO users at 10 and workspaces at 3, requiring Enterprise for larger teams.
They diverge on capability: Decodable covers Managed Flink, Windmill covers Script-to-workflow engine.
Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Decodable and Windmill actually diverge.

Attributes where Decodable and Windmill differ
Attribute	Decodable	Windmill
Pricing model	Per credit by task hour	open-source
Platforms	Web, Linux	web, api, linux, windows, mac

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated), category (Automation Integration).

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 Decodable

Managed Flink
Change data capture
SQL pipelines
Custom Flink jobs
Credit-based metering
Managed connectors

Only in Windmill

Script-to-workflow engine
Auto-generated UIs
Self-hosted deployment
Git sync
SSO support
Audit logs

What people use each for

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

Decodable

Streaming Postgres change data capture into Snowflake or Iceberg without running Debezium and Kafka Connect yourselfnot Windmill
Real-time enrichment and filtering of event streams before they reach an expensive warehousenot Windmill
A team that already writes Flink jobs but does not want to operate the cluster, checkpoint store or upgradesnot Windmill
Replacing a fragile set of cron jobs and Lambda functions that move data between operational systemsnot Windmill

Windmill

Turning ad-hoc scripts into scheduled jobs and APIsnot Decodable
Building internal tools from existing Python/TypeScript codenot Decodable
Self-hosted automation for engineering teamsnot Decodable
Orchestrating multi-language workflowsnot Decodable

Where each one falls short

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

Decodable

Credit pricing rewards intermittent work and penalises always-on pipelines: a single small task running continuously costs roughly 86 US dollars a month before any parallelism.
Parallelism multiplies tasks, so scaling a pipeline to keep up with throughput multiplies the bill in a way that is easy to under-forecast at design time.
The free tier retains streams for only 24 hours, which is too short to debug an intermittent failure that surfaces days later.
Java and Python transformations are gated behind paid plans, so anything the SQL layer cannot express means moving off the free tier immediately.
The operational layer is proprietary even though Flink and Debezium are not, so migrating to self-managed Flink later means rebuilding connectors, schema handling and monitoring from scratch.

Windmill

Free self-hosted tier caps SSO users at 10 and workspaces at 3, requiring Enterprise for larger teams.
Compute unit and seat-based pricing (developer vs. operator seats, worker compute units) adds pricing complexity beyond a flat monthly fee.
Email triggers are capped at 100/day on the free tier, limiting event-driven use cases without upgrading.
Smaller ecosystem of pre-built integrations compared to more established automation tools like n8n.

Pricing, plan by plan

Decodable

Free

FreeFree
- Up to four concurrent tasks
- Small and medium task sizes
- 24 hour or 10 GB stream retention
On Demand$undefined/month
- 0.12 USD per credit, billed monthly
- Unlimited concurrent tasks
- Small, medium and large task sizes
Enterprise$undefined/year
- 0.10 USD per credit on pre-purchased annual capacity
- Custom task sizes
- Extensible retention

Windmill

Free

Free / Open-sourceFree
- Unlimited executions
- Self-hosted deployment
- Max 10 users with SSO
Enterprise$120/month
- Unlimited executions and workspaces
- Uncapped SSO seats
- 24/7 priority support (3-hour response)

Which should you pick?

Choose Decodable if

You need managed flink.
You want to start without paying.
You work on Web, Linux.
You also want change data capture.

Decodable review

Choose Windmill if

You need script-to-workflow engine.
You want to start without paying.
You work on web, api, linux, windows, mac.
You also want auto-generated uis.

Windmill review

Questions people ask

Is Decodable or Windmill better?: Neither clearly leads. Decodable starts at Free and Windmill at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Decodable or Windmill?: Decodable starts at Free and Windmill at Free.
Does Decodable or Windmill run on more platforms?: Decodable runs on Web, Linux. Windmill runs on web, api, linux, windows, mac.
Can I use Decodable for free?: Both have a free tier, so you can try either at no cost before committing.
What is Decodable best used for?: Decodable is most often used for streaming postgres change data capture into snowflake or iceberg without running debezium and kafka connect yourself, real-time enrichment and filtering of event streams before they reach an expensive warehouse, a team that already writes flink jobs but does not want to operate the cluster, checkpoint store or upgrades, replacing a fragile set of cron jobs and lambda functions that move data between operational systems. Of those, streaming postgres change data capture into snowflake or iceberg without running debezium and kafka connect yourself and real-time enrichment and filtering of event streams before they reach an expensive warehouse are not what Windmill is typically brought in for.
What can Decodable do that Windmill cannot?: Decodable covers Managed Flink, Change data capture, SQL pipelines, Custom Flink jobs. Windmill covers Script-to-workflow engine, Auto-generated UIs, Self-hosted deployment, Git sync.

Answered from the vendors’ own pages

Decodable: What is a credit worth?

0.12 US dollars on On Demand and 0.10 on Enterprise. A small task consumes one credit per hour, medium two, large four.

Windmill: What does Windmill cost?

Windmill's Free and Open-source edition is $0/month for self-hosted use with unlimited executions, while Enterprise starts at $120/month with unlimited workspaces and uncapped SSO seats, priced further by developer/operator seats and compute units.

Source

Decodable: Is there a free plan?

Yes, up to four concurrent tasks with 24 hour or 10 GB stream retention.

Windmill: Is there a free plan and what are its limits?

The free self-hosted plan supports unlimited executions but caps SSO at 10 users, workspaces at 3, groups/permissions at 4, and email triggers at 100 per day.

Source

Decodable: Is it really Apache Flink underneath?

Yes, Flink for processing and Debezium for change data capture, both managed by Decodable.

Windmill: How is usage metered on Windmill Enterprise?

Enterprise usage is metered through seats (developer seats at $20/month, operator seats at $10/month) and compute units, e.g. $100/month for 2 standard-worker compute units.

Source

Decodable: Can I run my own Flink jobs?

Yes, Java and Python jobs on paid plans; the free plan is SQL only.

Windmill: What happens to a self-hosted Windmill deployment if the company shuts down?

The pricing page addresses this directly as an FAQ topic, noting that self-hosted applications built on the open-source edition can continue running independently of Windmill the company.

Source

Decodable vs Windmill

Decodable

Windmill

The short version

Where they differ

What each one covers

Only in Decodable

Only in Windmill

What people use each for

Decodable

Windmill

Where each one falls short

Decodable

Windmill

Pricing, plan by plan

Decodable

Windmill

Which should you pick?

Choose Decodable if

Choose Windmill if

Questions people ask

Answered from the vendors’ own pages

Related pages

More on Decodable

More on Windmill

Keep looking

Other head to heads