JSONToTable

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Convert CSV to Avro - Step by Step Guide

Step 1

Input Your CSV Data

Get your CSV data ready for conversion. The tool automatically infers Avro types from your data:

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Paste directly: Copy CSV data from Excel, Google Sheets, or any text editor
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Upload file: Click Upload to select a .csv file
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Headers option: Check the "Headers" box if your CSV has a header row
Step 2

Automatic Conversion

The converter automatically generates an Avro schema and converts your data:

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Type inference: Detects integers, floats, booleans, and strings automatically
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Schema generation: Creates a valid Avro schema from your CSV structure
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Data validation: Ensures all data matches the generated schema
Step 3

Download or Copy

Your Avro data is ready to use in Kafka, Hadoop, or any Avro-compatible system:

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Copy: One-click copy to clipboard for quick pasting
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Download: Save as a .json file with schema and data

Frequently Asked Questions

How do I convert CSV to Avro format?

Just paste your CSV data or upload a file. The tool automatically infers data types, generates an Avro schema, and converts your data. You can specify if your CSV has headers and customize the schema name.

What Avro types are supported?

The converter automatically detects and converts to int, double, boolean, and string types based on your CSV data. Integers become int, decimals become double, true/false values become boolean, and everything else is string.

Can I use this with Kafka?

Yes! The generated Avro format is fully compatible with Apache Kafka and Kafka Schema Registry. The output includes both the schema and data, ready for Kafka producers.

Does it handle CSV with headers?

Yes! Check the "Headers" option if your CSV has a header row. The tool will use those names as Avro field names. If unchecked, it generates field names like field1, field2, etc.

Is this CSV to Avro converter free?

Yes, completely free with no limits on file size or conversions. No registration required.

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