Free online CSV to JSON converter
How to convert CSV files to JSON format easily using online tools, desktop software, or Python scripts.
Convert CSV to JSON online - free
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How to convert csv to json file
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Understanding csv and json file formats
CSV (Comma-Separated Values) is a simple text format for storing tabular data, where each line represents a row and columns are separated by commas. It is widely used for data exchange between spreadsheets and databases.
JSON (JavaScript Object Notation) is a lightweight data-interchange format that is easy for humans to read and write, and easy for machines to parse and generate. JSON is commonly used for transmitting structured data over web applications and APIs.
Why convert csv to json?
Converting CSV to JSON is useful when you need to work with structured data in web development, APIs, or applications that require hierarchical data representation. JSON supports nested structures, making it more flexible than flat CSV files.
How to convert csv to json
There are several methods to convert CSV files to JSON format:
- Online converters: Websites like ConvertCSV allow you to upload your CSV file and download the converted JSON file instantly.
- Desktop software: Microsoft Excel can export CSV files, but for JSON conversion, tools like CSVed or Table Tool (for Mac) are helpful.
- Programming: Use Python with the csv and json modules to automate the conversion process.
Best software for csv to json conversion
The recommended tool for most users is ConvertCSV.com for its simplicity and speed. For advanced users, Python offers flexibility and automation:
import csv, json
with open('input.csv') as csvfile:
reader = csv.DictReader(csvfile)
rows = list(reader)
with open('output.json', 'w') as jsonfile:
json.dump(rows, jsonfile, indent=4)
Step-by-step conversion using ConvertCSV.com
- Go to ConvertCSV.com.
- Click Browse to upload your CSV file.
- Click Convert CSV to JSON.
- Download the resulting JSON file.
Conclusion
Converting CSV to JSON is straightforward with online tools or programming. Choose the method that best fits your needs for data structure and automation.
Note: This csv to json conversion record is incomplete, must be verified, and may contain inaccuracies. Please vote below whether you found this information helpful or not.
CSV vs JSON: format comparison
How the CSV and JSON formats compare on the properties that matter most for this conversion.
| Property | .CSV Comma-Separated Values | .JSON JavaScript Object Notation |
|---|---|---|
| Plain-text readable | Yes | Yes |
| Data types | Typed | Typed |
| Nested structures | No | Yes |
| Formulas | No | No |
| Multiple tables or sheets | No | No |
| Typical file size | Small | Small |
| Open standard | Yes | Yes |
| Best used for | Data exchange | Data exchange |
| Introduced | — | 2001 |
| Developer | — | Douglas Crockford / ECMA International |
| MIME type | text/csv | application/json |
Suggested software and links: csv to json converters
Frequently asked questions
Is the CSV to JSON converter free?
Yes, converting CSV to JSON on 101convert.com is completely free. No registration, email address or installation is required.
How large can my CSV file be?
You can upload CSV files up to 300 MB and convert up to 100 files at once in a single batch.
What happens to my uploaded files?
Files are processed automatically and deleted from our servers within a few minutes after conversion. We never view or share your files.
Do I need to install any software to convert CSV to JSON?
No. The CSV to JSON conversion runs entirely online in your browser and works on Windows, Mac, Linux, Android and iPhone.
Did the conversion fail?
In most cases, the cause is an incorrect file format. Please upload a valid CSV file for this CSV to JSON conversion. Occasionally, the issue may be on our side. We analyze recurring conversion failures and disable or fix the converter if we detect a defect.