JSON to CSV Converter
Convert JSON arrays to CSV format for spreadsheets.
✨ Convert
- Handle nested fields
- Custom delimiter
- Header generation
- Automatic unrolling
- Zero-config
💡 Info
**Data Analysis** Quickly move data from API responses to Excel.
**Reporting** Turn code output into business logic.
🚀 Usage
- 1
Paste JSON.
- 2
Click 'Convert'.
- 3
Download CSV.
Overview
This tool is designed for fast, local processing with no server upload. It focuses on clarity and repeatable results.
When to use it
- • When you need a quick result without installing software.
- • When you must keep files on your device for privacy.
- • When you want a predictable output for reuse or sharing.
How it works
Your file is processed in the browser. The workflow is deterministic and optimized for common document patterns.
Best practices
- • Start with a small sample to confirm output expectations.
- • Keep file names simple to avoid OS-specific edge cases.
- • If results look off, try the tool again after a page refresh.
Common mistakes
- • Uploading encrypted or corrupted files without preparing them first.
- • Assuming a tool will fix formatting issues outside its scope.
- • Closing the tab before the download completes.
⚠️ Limits
- • Nested objects are flattened
- • Arrays of objects only
📥 Inputs & Outputs
Inputs
- JSON Input Formats: n/a
Outputs
- file Formats: csv
🔒 Privacy & Security
- • No data storage.
🛠 Troubleshooting
CSV is messy.
Check your JSON structure. It should be an array of objects.
Conversion failed?
Valid JSON is required.
Characters broken?
CSV is saved in UTF-8.
❓ FAQ
Is it completely local?
Yes.
Can I use Excel?
Yes, Excel opens CSV files.
How are nested objects handled?
They are dot-notated (e.g. user.name).
Is it free?
Yes.
Limit?
Browser memory.
Revserse possible?
Use our CSV to JSON tool.