Base64 to CSV
Paste a Base64 string that encodes CSV data and get the decoded comma-separated values.
Last updated: May 29, 2026
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Buy me a coffeeWhat is Base64 to CSV?
Base64 to CSV decodes a Base64-encoded string and returns the underlying CSV text. This is the reverse of CSV to Base64, useful when a Base64-encoded CSV is received from an API, embedded in a JSON payload, or stored in a configuration file.
How to Use Base64 to CSV
Paste the Base64 string.
Click "Decode to CSV".
Copy the CSV output.
Common Use Cases
- Decoding a Base64-encoded CSV attachment received from an API or webhook.
- Extracting CSV data from a Base64 value stored in a JSON or YAML config.
- Debugging Base64-encoded data exports from a third-party service.
Example Input and Output
Decoding a Base64-encoded CSV.
bmFtZSxhZ2UsY2l0eQpBbGljZSwzMCxMb25kb24=name,age,city
Alice,30,LondonPrivacy
All decoding runs in your browser. No data is sent to any server.
Frequently Asked Questions
What if the CSV contains special characters?
Base64 encoding is binary-safe and preserves all characters including commas, quotes, and newlines exactly.
What is URL-safe Base64?
URL-safe Base64 uses - and _ instead of + and /. Enable the toggle if the string contains those characters.
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