Open Large Files
Open million-row CSV files and start exploring without lengthy setup.
From messy structured files to repeatable local results.
Rowpath
A local-first data workbench for Mac.
Open massive structured files, clean messy data, run SQL, build Working Views, save repeatable workflows, and export results - all without uploading your data to the cloud.
large CSV files, local datasets, faster answers
See Rowpath in Action
Watch short demos showing how Rowpath opens large files, builds Working Views, runs SQL, and accelerates analysis with Memory Mode.
Working Views
Transform data step by step while keeping the original file unchanged.
SQL Queries
Run SQL directly against local datasets and inspect results inside Rowpath.
Memory Mode
Load large datasets into memory to speed up repeated analysis and validation.
CSV
TSV
Excel
JSON
NDJSON
Parquet
SQL
Workflows
Native Mac workflow
The missing layer between spreadsheets and BI tools
Spreadsheets are familiar, but they struggle with large files and repeatable cleanup. BI tools are powerful, but often too heavy for quick local file work. Rowpath gives Mac users a focused, private, native workspace for serious structured-data tasks.
Structured data, start to finish
Open, clean, query, validate, and export without leaving your Mac
Analyze millions of rows instantly
Rowpath is built for large CSV, TSV, Excel, JSON, NDJSON, and Parquet files that are painful to open in spreadsheets. Explore huge datasets with fast scrolling, optimized caching, and responsive previews.
Turn cleanup steps into Working Views
Filter, sort, search, edit cells, add rows, calculate new columns, remove duplicates, and reshape your data step by step. Rowpath keeps your work visible, reversible, and ready to become a reusable workflow.
Use SQL on any dataset
Query local files with a modern SQL editor, syntax highlighting, autocomplete, result previews, and row-preserving Working Views when your query keeps the original dataset shape.
Find missing values, duplicates, and data quality issues
Profile columns, detect missing values, validate rules, find duplicate records, and create clean outputs without switching tools.
Save the path from import to export
Turn your Working View into a reusable workflow. Re-run common cleanup, validation, transformation, and export steps whenever new files arrive.
Your data never leaves your Mac
Rowpath processes files locally. Your SQL queries, Working Views, workflows, validation checks, and exports run on your device. No cloud upload is required.
Export exactly what you need
Export the current view, selected rows, or derived results to CSV, TSV, Excel, JSON, NDJSON, Markdown, Parquet, and other supported formats.
Built for recurring data problems
For people who need dependable local answers
Built for analysts, operators, researchers, consultants, journalists, finance teams, and technical users who work with recurring structured-data problems.
Real app screenshots
A focused workspace for serious structured-data tasks
Local-first privacy
Serious data work, without a cloud handoff
Rowpath processes files locally. Your SQL queries, Working Views, workflows, validation checks, and exports run on your device. No cloud upload is required.
Read the privacy policy
Make local data work repeatable.
Open massive files, clean messy data, run SQL, save workflows, and export clean results from your Mac.