Comparing Meltano with Windsor.ai and Weld

You’re comparing Meltano vs Windsor.ai vs Weld. Explore how they differ on connectors, pricing, and features.

Get started for free

Loved by data teams from around the world

Weld vs Meltano vs Windsor.ai

	Weld	Meltano	Windsor.ai
Connectors	200+	600+	300+
Price	$99 / 5M Active Rows	free (self-hosted), custom (managed), paid support packages	$499 / month
Free tier
Location	EU	US	CH
Extract data (ETL)
Sync to HubSpot, Salesforce, Klaviyo, Excel (reverse ETL)
Transformations
AI Assistant
On-Premise
Orchestration
Lineage
Version control
Load to/from Excel
Load to/from Google Sheets
Two-Way Sync
dbt Core Integration
dbt Cloud Integration
OpenAPI / Developer API
G2 rating	4.8	4.9	4.7

Overview

Meltano in Short

Meltano is an open-source data integration platform, similar to Airbyte, that enables businesses to build and manage their own data pipelines. It offers a wide range of connectors for databases, APIs, application logs, and other data sources. Meltano also supports robust data transformation and orchestration capabilities, making it easier to customize and automate workflows. It integrates seamlessly with popular cloud data warehouses, making it a flexible choice for modern data teams looking to manage their end-to-end data stack.

Pros

Open-source platform
A really large number of connectors through Singer
Offer an SDK to more easily build Singer taps and targets
Flexibility in Deployment

Cons

No fully managed options so you need to deploy yourself (in Beta though)
Requires high maintenance
Limited data transformation capabilities (only through deep integration with DBT)
Only has a limited number of connectors that are natively built outside of Singer

Reviews & Quotes

As a user on G2 puts it::

What I like about Meltano

“All the managerial tasks are handled under the hood, leaving you to focus on getting or consuming the data you need.”

What I dislike about Meltano

“With so many features baked into Meltano, navigating the documentation can be challenging. However, I've gotten around this by using Bing AI search, which brings me the answer immediately.”

Read full review

Overview

Windsor.ai in Short

Windsor.ai is a data integration platform focused on providing marketing analytics and attribution models. It allows businesses to connect and integrate data from various marketing channels into a single source of truth, enabling advanced data-driven decision-making and optimization of marketing spend. The platform supports a wide range of data connectors, making it versatile for different marketing needs.

Pros

Advanced marketing analytics and attribution models
Wide range of data connectors
Centralized data for better decision-making
User-friendly interface
Flexible integration with various marketing tools

Cons

Steeper learning curve for advanced features
Can be pricey for smaller teams
Customization can be complex

Reviews & Quotes

A reviewer on Capterra:

What I like about Windsor.ai

“Windsor.ai has significantly improved our marketing analytics by giving us a complete view of our performance across all channels. The attribution models are a game-changer for optimizing our ad spend.”

Read full review

Overview

Weld in Short

Weld is a powerful ETL platform that seamlessly integrates ELT, data transformations, reverse ETL, and AI-assisted features into one user-friendly solution. With its intuitive interface, Weld makes it easy for anyone, regardless of technical expertise, to build and manage data workflows. Known for its premium quality connectors, all built in-house, Weld ensures the highest quality and reliability for its users. It is designed to handle large datasets with near real-time data synchronization, making it ideal for modern data teams that require robust and efficient data integration solutions. Weld also leverages AI to automate repetitive tasks, optimize workflows, and enhance data transformation capabilities, ensuring maximum efficiency and productivity. Users can combine data from a wide variety of sources, including marketing platforms, CRMs, e-commerce platforms like Shopify, APIs, databases, Excel, Google Sheets, and more, providing a single source of truth for all their data.

Pros

Lineage, orchestration, and workflow features
Ability to handle large datasets and near real-time data sync
ETL + reverse ETL in one
User-friendly and easy to set up
Flat monthly pricing model
200+ connectors (Shopify, HubSpot, etc.)
AI assistant

Cons

Requires some technical knowledge around data warehousing and SQL
Limited features for advanced data teams
Focused on cloud data warehouses

Reviews & Quotes

A reviewer on G2 said:

What I like about Weld

“First and foremost, Weld is incredibly user-friendly. The graphical interface is intuitive, which makes it easy to build data workflows quickly and efficiently. Even with little experience in SQL and pipeline management, we found that Weld was straightforward and easy to use. What really impressed me, however, was Weld's flexibility. It was able to handle data from a wide variety of sources, including SQL databases, Google Sheets, and even APIs. The solution also allowed us to customize my data transformations in a way that best suited my needs. Whether I needed to clean data, join tables, or aggregate data, Weld had the necessary tools to accomplish the task. Weld's performance was also exceptional. I was able to run large-scale ETL jobs quickly and efficiently, with minimal downtime via a Snowflake instance and visualization via own-hosted Metabase. The solution's scalability meant that I could process more data without any issues. Another standout feature of Weld was its support. I never felt lost or unsure about how to use a particular feature, as the support team was always quick to respond to any questions or concerns that I had. Overall, I highly recommend Weld as an ETL solution. Its user-friendliness, flexibility, performance, and support make it an excellent choice for anyone looking to streamline their data integration processes. I will definitely be using Weld for all my ETL needs going forward.”

What I dislike about Weld

“Weld is still limited to a certain number of integrations - although the team is super interested to hear if you need custom integrations.”

Read full review

Feature-by-Feature Comparison

Meltano

Windsor.ai

Weld

Feature

Meltano

Windsor.ai

Weld

Ease of Use & Interface

Side-by-side

Meltano

Meltano is simple and easy to use for those with technical expertise, particularly due to its portability and command-line usability, but may be challenging for less technical users.

Windsor.ai

Windsor.ai provides a user-friendly interface, particularly useful for marketing teams needing advanced analytics and attribution models. However, advanced features may require a steeper learning curve.

Weld

Weld is highly praised for its user-friendly interface and intuitive design, which allows even users with minimal SQL experience to manage data workflows efficiently. This makes it an excellent choice for smaller data teams or businesses without extensive technical resources.

Ease of Use & Interface

Side-by-side

Meltano is simple and easy to use for those with technical expertise, particularly due to its portability and command-line usability, but may be challenging for less technical users.

Pricing & Affordability

Side-by-side

Meltano

Meltano is open-source and free to use, making it highly affordable, but requires significant investment in deployment and maintenance, especially without a fully managed option.

Windsor.ai

Windsor.ai's pricing can be high for smaller teams, especially given its advanced capabilities. However, it provides strong value for businesses needing comprehensive marketing analytics.

Weld

Weld offers a straightforward and competitive pricing model, starting at $79 for 5 million active rows, making it more affordable and predictable, especially for small to medium-sized enterprises.

Pricing & Affordability

Side-by-side

Meltano is open-source and free to use, making it highly affordable, but requires significant investment in deployment and maintenance, especially without a fully managed option.

Windsor.ai's pricing can be high for smaller teams, especially given its advanced capabilities. However, it provides strong value for businesses needing comprehensive marketing analytics.

Weld offers a straightforward and competitive pricing model, starting at $79 for 5 million active rows, making it more affordable and predictable, especially for small to medium-sized enterprises.

Feature Set

Side-by-side

Meltano

The platform offers extensive integration options, including support for data transformation and orchestration, but relies heavily on the Singer framework, which can limit capabilities.

Windsor.ai

The platform offers a wide range of data connectors and advanced marketing analytics, making it versatile for different marketing needs and enabling data-driven decision-making.

Weld

Weld integrates ELT, data transformations, and reverse ETL all within one platform. It also provides advanced features such as data lineage, orchestration, workflow management, and an AI assistant, which helps in automating repetitive tasks and optimizing workflows.

Feature Set

Side-by-side

The platform offers extensive integration options, including support for data transformation and orchestration, but relies heavily on the Singer framework, which can limit capabilities.

The platform offers a wide range of data connectors and advanced marketing analytics, making it versatile for different marketing needs and enabling data-driven decision-making.

Flexibility & Customization

Side-by-side

Meltano

Meltano is highly flexible for advanced users who can manage their own deployments and build on the platform, but it requires substantial maintenance and lacks a fully managed option.

Windsor.ai

Windsor.ai offers flexible integration with various marketing tools, but customization can be complex, particularly for users unfamiliar with advanced data operations.

Weld

Weld offers advanced SQL modeling and transformations directly within its platform with the help of AI, providing users with unparalleled control and flexibility over their data. Leveraging its powerful AI capabilities, Weld automates repetitive tasks and optimizes data workflows, allowing teams to focus on getting value and insights. Additionally, Weld's custom connector framework enables users to build connectors to any API, making it easy to integrate new data sources and tailor data pipelines to meet specific business needs. This flexibility is particularly beneficial for teams looking to customize their data integration processes extensively and maximize the utility of their data without needing external tools.

Flexibility & Customization

Side-by-side

Meltano is highly flexible for advanced users who can manage their own deployments and build on the platform, but it requires substantial maintenance and lacks a fully managed option.

Windsor.ai offers flexible integration with various marketing tools, but customization can be complex, particularly for users unfamiliar with advanced data operations.