Best Free Data Preparation Software
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Compare the Top Free Data Preparation Software as of December 2025
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What is Free Data Preparation Software?
Data preparation software helps businesses and organizations clean, transform, and organize raw data into a format suitable for analysis and reporting. These tools automate the data wrangling process, which typically involves tasks such as removing duplicates, correcting errors, handling missing values, and merging datasets. Data preparation software often includes features for data profiling, transformation, and enrichment, enabling data teams to enhance data quality and consistency. By streamlining these processes, data preparation software accelerates the time-to-insight and ensures that business intelligence (BI) and analytics applications use high-quality, reliable data. Compare and read user reviews of the best Free Data Preparation software currently available using the table below. This list is updated regularly.
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dbt
dbt Labs
dbt brings rigor and scalability to data preparation by enabling teams to clean, transform, and structure raw data directly in the warehouse. Instead of siloed spreadsheets or manual workflows, dbt uses SQL and software engineering best practices to make data preparation reliable, repeatable, and collaborative. With dbt, teams can: - Clean and standardize data with reusable, version-controlled models. - Apply business logic consistently across all datasets. - Validate outputs through automated tests before data is exposed to analysts. - Document and share context so every prepared dataset comes with lineage and definitions. By treating data preparation as code, dbt ensures that prepared datasets aren’t just quick fixes — they’re trusted, governed, and production-ready assets that scale with the business.Starting Price: $100 per user/ month -
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Upsolver
Upsolver
Upsolver makes it incredibly simple to build a governed data lake and to manage, integrate and prepare streaming data for analysis. Define pipelines using only SQL on auto-generated schema-on-read. Easy visual IDE to accelerate building pipelines. Add Upserts and Deletes to data lake tables. Blend streaming and large-scale batch data. Automated schema evolution and reprocessing from previous state. Automatic orchestration of pipelines (no DAGs). Fully-managed execution at scale. Strong consistency guarantee over object storage. Near-zero maintenance overhead for analytics-ready data. Built-in hygiene for data lake tables including columnar formats, partitioning, compaction and vacuuming. 100,000 events per second (billions daily) at low cost. Continuous lock-free compaction to avoid “small files” problem. Parquet-based tables for fast queries.
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