DEV Community

@kon_yu
@kon_yu

Posted on

4 3

How to encode/decode base64 with JS

Execution environment

Chrome ver. 79.0
Confirmation of operation with console of Dev tool

Encoding to base64 is done with the btoa command

btoa("This is a test.")
> "VGhpcyBpcyBhIHRlc3Qu"
Enter fullscreen mode Exit fullscreen mode

To decode a base64 encoded string, use the atob command

atob("VGhpcyBpcyBhIHRlc3Qu")
> "This is a test."
Enter fullscreen mode Exit fullscreen mode

Top comments (0)

Billboard image

The Next Generation Developer Platform

Coherence is the first Platform-as-a-Service you can control. Unlike "black-box" platforms that are opinionated about the infra you can deploy, Coherence is powered by CNC, the open-source IaC framework, which offers limitless customization.

Learn more