What Conversions Can I Do on Base64.Guru?

Updated

Base64.Guru is a site dedicated to the Base64 binary-to-text algorithm, and its stated key features are converting, developing, and learning. For conversion specifically, the site is built around turning data between plain text and Base64-encoded form, and the full set of available tools is collected on its sitemap page rather than listed in one place on the homepage. If you need to encode or decode Base64 and want a browser-based tool plus reference material in the same place, this site is aimed at that use case.

What "conversion" means here

Base64 is described on the site as the most popular binary-to-text algorithm, used to convert data as plain text so it isn't corrupted when transmitted between different storage mediums. It's also commonly used to embed binary data into text documents such as HTML, CSS, JavaScript, or XML.

So the conversions on the site follow that same logic — moving data between:

  • Plain text and Base64 — encoding readable text into Base64, or decoding Base64 back into readable text.
  • Binary data and Base64 text — representing binary content as a text-safe string, and reversing it.
  • Embeddable form — producing Base64 strings intended to be dropped into HTML, CSS, JavaScript, or XML documents.

Where to find the tools

The homepage does not enumerate every converter. Instead, it points to the sitemap page as the place where "all goodies can be found." If you're looking for a specific conversion tool, the sitemap is the intended starting point.

A practical way to use it

  1. Go to the sitemap page to see the list of available tools.
  2. Pick the converter that matches your direction — for example, text to Base64 or Base64 back to text.
  3. Paste your input, run the conversion, and check the output.
  4. If the result looks wrong, verify that your input is valid Base64 (the site also covers validation, e.g. a blog post on validating Base64 using Notepad++).

Beyond converting

The site frames itself around three pillars — converting, developing, and learning — so conversion tools sit alongside material for developers and explanations of how the algorithm works. The site also notes it is still in active development and invites corrections, so tool coverage may change over time.

If your goal is simply to encode or decode Base64 in the browser and read up on the algorithm in the same place, start from the sitemap to find the exact converter you need.