01
Set the source and destination formats explicitly
Paste a real CSV table, choose CSV, TSV, JSON, or YAML on either side, and reverse the direction with Swap when the workflow changes.
Data Format ConverterDeveloper & Data
Move structured records between CSV, TSV, JSON, and YAML without losing sight of the source.
Data Format Converter parses one structured format and writes another locally. Set both sides explicitly, reverse the workflow with Swap, and review formatted output before copying it into an API, configuration file, spreadsheet, or another Foldout text tool.
Start the 14-day trial in the app. No payment method is required to try Foldout.
Local tool processingFiles and tool work stay on your Mac.
100+ focused toolsFiles, PDFs, media, capture, and developer workflows.
Settings ready to goFormats, dimensions, and other values carry into the tool.
Try everything first14 days in the app. No payment method required.
What it does
Convert structured text between CSV, TSV, JSON, and YAML with a reversible, reviewable workflow.
Convert CSV, TSV, JSON, and YAML in either direction.
Keep source and destination formats explicit.
Swap direction and reuse valid output as the next input.
Review formatted records before copying.
Keep internal data local to the Mac.
Structured data, reversible
Make the source, destination, and converted records explicit.
A real CSV table becomes readable JSON while Swap preserves the path back through the opposite direction.
02
Review structured output before copying it onward
Confirm every record and field in the converted JSON, then copy or send the result into another Foldout text tool.
Why it belongs
Why Data Format Converter earns a place in the toolbox.
The practical details that make this job faster, clearer, or safer than doing it by hand.
The conversion contract is visible
From and To selectors remove ambiguity about how pasted text will be interpreted.
Records remain recognizable
Formatted output preserves field names and row structure for a quick visual comparison.
Reverse workflows take one action
Swap the formats and carry valid output back into the input when a round trip is useful.
How to use it
From opening the tool to saving the result.
- 01
Paste the structured source.
- 02
Choose From and To formats.
- 03
Convert and review every record.
- 04
Copy the result or Swap for the reverse direction.
Questions
Before you try Data Format Converter
Can it convert spreadsheet exports?
Yes. CSV and TSV inputs are supported.
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