What is LocalCSV Lab?
LocalCSV Lab is a set of browser-based CSV and JSON utilities built for real data chores. You can compare two CSV exports, join files by a key column, remove duplicate rows and convert between CSV and JSON.
Files are processed inside your browser and are not uploaded. It also has helpers for e-commerce work such as checking Shopify product imports, plus downloadable examples to try each tool.
Key features
- Compare two CSV versions
- Join CSV files by key
- Remove duplicate rows
- CSV to JSON and back
Pros
- Data stays on your device
- Covers tasks most converters skip
- No signup or email
Cons
- Files limited to about 2 MB per input
- Info pages show ads
Best for
Ratings and reviews
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LocalCSV Lab FAQ
Is LocalCSV Lab free?
The core tools are free and need no signup, email or payment.
Do I need an account to use LocalCSV Lab?
No. LocalCSV Lab works without signing up, so you can open tools.trendbridged.com and start using it right away.
What are some alternatives to LocalCSV Lab?
Similar free tools that also work without an account include Datawrapper, RAWGraphs, Google Dataset Search, Our World in Data, Gapminder Tools and CSVJSON.