# JWT decoder

> Inspect a JWT header and payload without trusting it.

[Open tool](https://www.toolcabana.com/ch/jwt-decoder) · [Developer and data](https://www.toolcabana.com/ch/category/developer-and-data)

Tool ID: jwt-decoder. Requested language: ch. Description language: en. Complete guide translation: no; untranslated sections use English.

## Supported tasks (en)

Inspect a JWT header and payload without trusting it.

## Steps (en)

1. Type or paste your source, or load an example.
2. Change the basic settings or open Advanced mode to fine-tune the result.
3. Review and copy or download your result. Pause Live results to run manually. Sources or individual settings above 20,000 characters require an explicit run.

## Settings

- JWT Base64URL encoding (en; key: urlSafe; type: checkbox)

## Limitations (en)

Text operations generally accept up to 2,000,000 characters. Individual parsers, generators and formulas apply additional limits shown by their controls.

## Example input

```text
eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiJleGFtcGxlIiwiZXhwIjoxODAwMDAwMDAwfQ.demo
```

## Privacy and connections (en)

This operation processes its source in your browser. Copy and download are explicit actions; source input is not saved in an account or history.

## Questions (en)

### What does jwt decoder do?

Inspect a JWT header and payload without trusting it.

### Where is my input processed?

This operation processes its source in your browser. Copy and download are explicit actions; source input is not saved in an account or history.

### What are the input limits?

Text operations generally accept up to 2,000,000 characters. Individual parsers, generators and formulas apply additional limits shown by their controls.

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