# Developer Tools

Explore developer tools designed to simplify CIAM development.

> For the index of this section of the site, see [llms.txt](https://4002.18-224-161-104.sslip.io/docs/llms.txt)

[Base64 Encoder/Decoder Convert text to Base64 or decode Base64-encoded data for secure encoding and transmission.](https://4002.18-224-161-104.sslip.io/docs/dev-tools/base64-encoder-decoder.md)

[Epoch/Unix Time Converter Convert Unix and epoch times using our online epoch Time Converter tool.](https://4002.18-224-161-104.sslip.io/docs/dev-tools/date-time.md)

[JWT Decoder Learn how JWT refresh tokens work and how to use them to authenticate and authorize your APIs.](https://4002.18-224-161-104.sslip.io/docs/dev-tools/jwt-decoder.md)

[URL Encoder/Decoder Convert special characters for safe transmission as URL parameters and decode encoded URLs.](https://4002.18-224-161-104.sslip.io/docs/dev-tools/url-encoder-decoder.md)

[UUID Generator Create random 32-character unique identifiers for secure and standardized identification.](https://4002.18-224-161-104.sslip.io/docs/dev-tools/uuid-generator.md)

Related

[APIs JWTs & Refresh Token API Learn about the APIs that allow you to manage Refresh Tokens, verify Access Tokens and retrieve public keys used for verifying JWT signatures. jwt](https://4002.18-224-161-104.sslip.io/docs/apis/jwt.md)

[APIs Issue a JWT API API documentation for the FusionAuth Issue a JWT API. jwt](https://4002.18-224-161-104.sslip.io/docs/apis/jwt/issue-a-jwt.md)

[APIs Reconcile a JWT Using the External JWT Provider API API documentation for the FusionAuth Reconcile a JWT Using the External JWT Provider API. jwt](https://4002.18-224-161-104.sslip.io/docs/apis/jwt/reconcile-a-jwt-using-the-external-jwt-provider.md)

[APIs Refresh a JWT API API documentation for the FusionAuth Refresh a JWT API. jwt](https://4002.18-224-161-104.sslip.io/docs/apis/jwt/refresh-a-jwt.md)