You’re comparing Weld vs Dell Boomi vs Integrate.io. Explore how they differ on connectors, pricing, and features. 
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| Feature | Weld | Dell Boomi | Integrate.io |
|---|---|---|---|
| Core Platform | |||
| Price | $79 / 5M Active Rows | Subscription-based (per Atom/connection; starts ~$1000/month) | Custom, based on connectors & volume |
| Free tier | No | No | No |
| Location | DK, (EU) | Austin, TX, USA | US |
| Connectors & Sync | |||
| Connectors | 200+ | 200+ | 100+ |
| Extract data (ETL) | Yes | Yes | Yes |
| Sync to HubSpot, Salesforce, Klaviyo, Excel (reverse ETL) | Yes | Yes | Yes |
| Two-Way Sync | Yes | Yes | Yes |
| Transformations & AI | |||
| Transformations | Yes | Yes | Yes |
| AI Assistant | Yes | No | No |
| dbt Core Integration | Yes | No | No |
| dbt Cloud Integration | Yes | No | No |
| Governance & DevOps | |||
| Orchestration | Yes | Yes | Yes |
| Lineage | Yes | Yes | No |
| Version control | Yes | Yes | No |
| On-Premise | No | Yes | No |
| OpenAPI / Developer API | Yes | Yes | Yes |
| Integrations | |||
| Load to/from Excel | Yes | Yes (via ODBC/JDBC) | No |
| Load to/from Google Sheets | Yes | No | No |
| Ratings | |||
| G2 rating | 4.8 | 4.3 | 4.3 |
Overview
Weld is a unified ELT and data activation platform that combines ingestion, modeling, transformations, orchestration, lineage, and reverse ETL in a single SaaS interface. With premium in-house–built connectors, an intuitive UI, and near real-time syncs, Weld enables both technical and non-technical users to create and manage data workflows efficiently. Weld also includes an AI assistant to support SQL modeling, generate transformations, and streamline repetitive tasks. Teams can ingest data from a wide range of sources—including marketing platforms, CRMs, databases, Google Sheets, Excel, and APIs—into their cloud data warehouse and activate it back into business tools.
Lineage, orchestration, and workflow features included by default
Handles large datasets and near real-time data sync
ELT and reverse ETL in one platform
User-friendly interface with minimal setup required
Flat, predictable monthly pricing model
200+ in-house–built, high-quality connectors
AI assistant for modeling and transformations
Some SQL knowledge is useful for advanced modeling
Optimized for cloud-warehouse workflows (Snowflake, BigQuery, Redshift, etc.)
Feature set is streamlined for modern ELT/activation use cases
A reviewer on G2 said:
Overview
Dell Boomi AtomSphere is a cloud-native iPaaS that provides ETL, ELT, API management, B2B/EDI integration, and workflow automation using its Atom runtime architecture. It includes 200+ connectors across SaaS, on-premises systems, and databases. Pipelines and integrations are created in a visual drag-and-drop interface, and Boomi’s lightweight Atom engine can be deployed both in the cloud and on-premise to support hybrid integration scenarios.
200+ connectors for SaaS, databases, on-prem systems, and big data sources.
Hybrid deployment options via Boomi Atoms (cloud, on-prem, or private environments).
Visual process designer with drag-and-drop mapping and component-specific logic.
Built-in version control, error handling, and CI/CD integration.
Licensing costs can increase quickly based on Atom count and connector usage.
Advanced transformations may require scripting (JavaScript or Groovy).
Learning curve for understanding Atom, Molecule, and hybrid deployment models.
Dell Boomi Documentation:
“Boomi’s AtomSphere makes deploying integration processes easy—Atoms can run anywhere, and the visual interface is intuitive for building mappings.”
“Licensing can be expensive, especially for high-volume data. Complex integrations can require coding despite the low-code promise.”
Overview
Integrate.io (formerly Xplenty) is a low-code/no-code data integration platform that unifies ETL, ELT, and reverse ETL in a single solution. It features a drag-and-drop interface for building pipelines and supports over 150 pre-built connectors for databases, SaaS apps, and REST APIs. Designed for both cloud and hybrid environments, it offers on-premise agents for secure local data access. Integrate.io supports complex workflows with scheduling, transformation logic, and change data capture (CDC), while also enabling reverse ETL to push data back into operational systems like CRMs. With built-in monitoring, alerts, and customer support, it’s a strong option for teams seeking a user-friendly yet powerful integration platform.
100+ pre-built connectors covering both operational (reverse ETL) and analytical use cases
Low-code visual pipeline builder with rich transformation expressions
Supports hybrid deployments via secure agent for on-prem sources
Unified platform for ETL, ELT, and reverse ETL
Robust workflow orchestration and scheduling features
Cloud-only SaaS (no fully on-prem option)
UI can feel complex initially due to breadth of features
Less polished transformation debugging compared to dedicated tools like Matillion
Pricing can be high for small teams; custom quotes required
Documentation sometimes lagging on newer features
G2 Review:
“The system was easy to integrate and flexible for all of our systems. The system is reliable with little or no maintenance or intervention needed to maintain consistent data flows. They have excellent support and communication in both timelines and quality of response.”
“There is a learning curve that can take some time to leverage more complex transformations and the support is limited with highly complex setups leaving some aspects of development more difficult.”
Side-by-side
Weld’s interface is built for clarity and speed, enabling users with varying levels of technical experience to manage data pipelines and models efficiently. Its built-in lineage and orchestration tools provide transparency across workflows.
Boomi’s Integration Builder provides a web-based canvas for designing integration processes. While the drag-and-drop interface is intuitive for typical workflows, complex multi-step pipelines can become challenging to maintain.
Integrate.io offers a drag-and-drop canvas for building pipelines, which is intuitive for new users but requires some ramp-up to master its full capabilities.
Side-by-side
Weld’s interface is built for clarity and speed, enabling users with varying levels of technical experience to manage data pipelines and models efficiently. Its built-in lineage and orchestration tools provide transparency across workflows.
Boomi’s Integration Builder provides a web-based canvas for designing integration processes. While the drag-and-drop interface is intuitive for typical workflows, complex multi-step pipelines can become challenging to maintain.
Integrate.io offers a drag-and-drop canvas for building pipelines, which is intuitive for new users but requires some ramp-up to master its full capabilities.
Side-by-side
Weld offers a simple and predictable pricing model starting at $79 for 5 million active rows. This flat, usage-transparent structure makes budgeting straightforward for small and medium-sized teams.
Boomi uses a subscription model based on Atom runtime usage, connector limits, and transaction volumes. Pricing generally starts around $1,000 per month, with higher tiers for larger workloads. Smaller teams may find the model expensive.
Pricing is customized and generally pitched as more affordable than enterprise competitors, but small businesses may find entry costs high without a free tier.
Side-by-side
Weld offers a simple and predictable pricing model starting at $79 for 5 million active rows. This flat, usage-transparent structure makes budgeting straightforward for small and medium-sized teams.
Boomi uses a subscription model based on Atom runtime usage, connector limits, and transaction volumes. Pricing generally starts around $1,000 per month, with higher tiers for larger workloads. Smaller teams may find the model expensive.
Pricing is customized and generally pitched as more affordable than enterprise competitors, but small businesses may find entry costs high without a free tier.
Side-by-side
Weld provides ELT ingestion, SQL-based transformations, reverse ETL activation, data lineage, orchestration, and workflow management in a single platform. Its AI assistant accelerates modeling and transformation tasks.
Key features include ETL/ELT processes, API management, EDI/B2B capabilities, workflow automation, master data management, and data quality tools. The platform also provides monitoring, alerts, and enterprise-level governance capabilities.
A breadth of features: ETL/ELT connectors, reverse ETL for operational syncs, built-in transformation expressions, API generation, and workflow automation. It also provides data governance tools like environment promotion.
Side-by-side
Weld provides ELT ingestion, SQL-based transformations, reverse ETL activation, data lineage, orchestration, and workflow management in a single platform. Its AI assistant accelerates modeling and transformation tasks.
Key features include ETL/ELT processes, API management, EDI/B2B capabilities, workflow automation, master data management, and data quality tools. The platform also provides monitoring, alerts, and enterprise-level governance capabilities.
A breadth of features: ETL/ELT connectors, reverse ETL for operational syncs, built-in transformation expressions, API generation, and workflow automation. It also provides data governance tools like environment promotion.
Side-by-side
Users can model data using SQL enhanced by Weld’s AI assistant, automate workflows, and build custom connectors to any API. This provides strong flexibility for teams that want to tailor integrations and transformations within one platform.
Boomi supports Groovy and JavaScript for custom transformations, and Atoms can be deployed in any environment for hybrid use cases. Pipelines can be parameterized, integrated with CI/CD, and triggered via REST APIs. As a proprietary platform, core engine enhancements depend on Boomi’s roadmap.
Integrate.io allows custom scripting (JavaScript or SQL) within pipelines and secure agent deployment for on-prem sources. Its API and SDK enable integration into CI/CD, but ultimate customization is bounded by the platform’s framework.
Side-by-side
Users can model data using SQL enhanced by Weld’s AI assistant, automate workflows, and build custom connectors to any API. This provides strong flexibility for teams that want to tailor integrations and transformations within one platform.
Boomi supports Groovy and JavaScript for custom transformations, and Atoms can be deployed in any environment for hybrid use cases. Pipelines can be parameterized, integrated with CI/CD, and triggered via REST APIs. As a proprietary platform, core engine enhancements depend on Boomi’s roadmap.
Integrate.io allows custom scripting (JavaScript or SQL) within pipelines and secure agent deployment for on-prem sources. Its API and SDK enable integration into CI/CD, but ultimate customization is bounded by the platform’s framework.
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CUSTOMER STORIES
“One of the biggest impacts has been unlocking new ways to buy media. Before, we didn’t have the data to back up strategic decisions – now we do.”
“Before Weld, we had to rely on custom Python scripts and manual processes that were time-consuming and error-prone.”
“We’re still a team of three, but we’re often doing far more than the equivalent of three full-time employees. That’s down to how we're able to leverage systems, data, and processes.”
“We’ve always been a KPI-driven company. But we wanted to scale that mindset across every team member, every team, every decision.”
“Before Weld, our data infrastructure was limited and we relied heavily on Excel files and custom Python scripts.”
“Weld has saved us a ton of time, from not having data ready to having a fully functional data warehouse and connectors.”
“By integrating Weld, Amazon S3, and Databricks, Soundboks built a modern data pipeline that automates data ingestion, improves reporting, and provides up-to-date visibility into sales performance”
“We didn’t have a good data setup, so we lacked the business insights we needed. Weld has allowed us to set up a structured data infrastructure and access insights quickly.”
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