Base64 Encoder / Decoder: guide & how to use

Convert text to Base64 or decode Base64 back to UTF-8 text. Runs locally for tokens, data URIs, and debugging. This guide is part of our guides library in the Data & format converters category—JSON, CSV, YAML, XML, Base64, URLs, Markdown, and PDF export—everything stays in your browser except PDF rendering.

What this tool does

Base64 Encoder / Decoder — Encode and decode Base64 with Unicode-safe handling. It fits alongside other utilities on AI Tool Hub so you can solve small problems quickly without installing desktop software.

When it helps

Reach for this tool when your work overlaps with topics like: base64, encode, decode, utf-8. Teams use these utilities for ad hoc checks during development, studying, content drafting, and light business calculations—always double-check critical numbers against your own policies or professionals when stakes are high.

How to use it

1. Open the tool using the button below.
2. Enter or paste your input in the workspace.
3. Review the output and copy or export it for your project.

Common questions

Is this suitable for secrets?

Base64 is encoding, not encryption. Do not rely on it to protect sensitive data.

Related tools

Pair this workflow with other utilities on the site:

• URL Encoder / Decoder

  Encode or decode URL components and full URIs.
• UUID Generator

  Generate random UUID v4 identifiers.
• JSON Formatter

  Format, minify, and validate JSON in the browser.

Privacy

Like most utilities in this category, Base64 Encoder / Decoder runs locally in your browser after the page loads—your content is not sent to our servers for processing.