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Comparing dlt (Data Load Tool) with TripleWhale and Weld

Carolina Russ
Carolina Russ5 min read
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What is dlt (Data Load Tool)

dlt is an open-source Python library for building data pipelines with a code-first approach. It provides pre-built connectors for many common data sources and handles schema inference, incremental loading, and retry logic automatically. Developers define pipelines in Python, making it highly flexible and embeddable in any orchestration environment.

Pros

  • Open-source and free to use
  • High flexibility and control via Python code
  • 60+ pre-built connectors with automatic schema evolution
  • Built-in incremental loading and state management
  • Embeddable in any orchestration (Airflow, Prefect, cron, etc.)

Cons

  • No graphical UI—code-first, so not accessible to non-developers
  • Requires engineering effort to deploy and schedule (no managed SaaS)
  • Limited built-in transformations compared to dedicated ETL tools
  • Monitoring and observability must be built around code (no native dashboard)
  • Smaller community and support compared to more established tools

A reviewer on Medium:

What I like about dlt (Data Load Tool)

dlt is lightweight, customizable, and removes a lot of the boilerplate around API ingestion. With just a few lines of Python, we were able to create robust pipelines that handle schema changes and incremental loads seamlessly.

What I dislike about dlt (Data Load Tool)

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What is TripleWhale

TripleWhale is an analytics platform specifically designed for eCommerce businesses, providing insights into customer journeys, advertising performance, and key metrics across various marketing channels. It allows users to connect their eCommerce platforms, such as Shopify, and marketing tools to create comprehensive dashboards that help in decision-making and optimizing ad spend.

Pros

  • Tailored for eCommerce businesses
  • Comprehensive customer journey insights
  • Easy integration with Shopify and other eCommerce platforms
  • User-friendly dashboards
  • Optimizes ad spend with detailed analytics

Cons

  • Limited to eCommerce use cases
  • Can be expensive for smaller businesses
  • Some advanced features have a learning curve

A reviewer on G2:

What I like about TripleWhale

TripleWhale has become indispensable for our eCommerce operations, providing us with detailed insights into our customer journeys and ad performance that we couldn't get anywhere else.

What I dislike about TripleWhale

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What is Weld

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

  • Premium quality connectors and reliability
  • User-friendly and easy to set up
  • AI assistant
  • Very competitive and easy-to-understand pricing model
  • Reverse ETL option
  • Lineage, orchestration, and workflow features
  • Advanced transformation and SQL modeling capabilities
  • Ability to handle large datasets and near real-time data sync
  • Combines data from a wide range of sources for a single source of truth

Cons

  • Requires some technical knowledge around data warehousing and SQL
  • Limited features for advanced data teams

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

Ease of Use & Interface

dlt (Data Load Tool)

dlt has no graphical interface—pipelines are defined in Python code, making it easy for developers comfortable with code but inaccessible to non-technical users.

TripleWhale

TripleWhale provides a user-friendly dashboard that simplifies the visualization of customer journey and advertising data, making it accessible even for users without deep technical knowledge.

Pricing & Affordability

dlt (Data Load Tool)

As an open-source library, dlt is free to use. Users only pay for the infrastructure required to run pipelines, making it highly affordable compared to paid SaaS solutions.

TripleWhale

Priced at $299 per month, TripleWhale may be expensive for smaller eCommerce businesses, but offers substantial value through its detailed analytics and integration capabilities.

Feature Set

dlt (Data Load Tool)

dlt provides core pipeline features: connector library, schema inference, incremental loading, and state management. It supports major destinations (Snowflake, BigQuery, Redshift, PostgreSQL, Databricks) and allows in-Python transformations or dbt integration.

TripleWhale

The platform is focused on eCommerce, providing comprehensive insights into customer journeys and advertising performance, which is highly beneficial for businesses in this sector.

Flexibility & Customization

dlt (Data Load Tool)

Because pipelines are written in Python, dlt offers unmatched customization—developers can fetch from any API, implement custom logic, and integrate with any orchestration or monitoring framework. This flexibility requires engineering investment but allows tailor-made solutions.

TripleWhale

TripleWhale is tailored specifically for eCommerce, limiting its use to this sector but providing powerful tools for optimizing ad spend and improving customer insights.

Summary of dlt (Data Load Tool) vs TripleWhale vs Weld

Welddlt (Data Load Tool)TripleWhale
Connectors200+60+50+
Price$79 / No data volume limitsFree (open-source)$299 / month
Free tierNoNoNo
LocationEUDEUS
Extract data (ETL)YesYesYes
Sync data to HubSpot, Salesforce, Klaviyo, Excel etc. (reverse ETL)YesYesNo
TransformationsYesYesNo
AI AssistantYesNoNo
On-PremiseNoYesNo
OrchestrationYesNoNo
LineageYesNoNo
Version controlYesYesNo
Load data to and from ExcelYesNoNo
Load data to and from Google SheetsYesNoNo
Two-Way SyncYesNoNo
dbt Core IntegrationYesNoNo
dbt Cloud IntegrationYesNoNo
OpenAPI / Developer APIYesYesNo
G2 Rating4.84.6

Conclusion

You’re comparing dlt (Data Load Tool), TripleWhale, Weld. Each of these tools has its own strengths:

  • dlt (Data Load Tool)dlt provides core pipeline features: connector library, schema inference, incremental loading, and state management. it supports major destinations (snowflake, bigquery, redshift, postgresql, databricks) and allows in-python transformations or dbt integration.as an open-source library, dlt is free to use. users only pay for the infrastructure required to run pipelines, making it highly affordable compared to paid saas solutions..
  • TripleWhalethe platform is focused on ecommerce, providing comprehensive insights into customer journeys and advertising performance, which is highly beneficial for businesses in this sector.priced at $299 per month, triplewhale may be expensive for smaller ecommerce businesses, but offers substantial value through its detailed analytics and integration capabilities..
  • Weldweld 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.weld offers a straightforward and competitive pricing model, starting at $99 for 2 million active rows, making it more affordable and predictable, especially for small to medium-sized enterprises..
Review the detailed sections above—connectors, pricing, feature set, and integrations—and choose the one that best matches your technical expertise, budget, and use cases.

Want to try a better alternative? Try Weld for free today.