Base64 Studio

Encode and decode Base64 text with one compact utility.

Two-way convertor

UTF-8 safe conversion

Single-screen layout with clear input and output areas

Input

Switch direction without leaving the page.

Plain text

Output

A natural place for a result-following ad container later.

Base64 output

TGF1bmNoIHlvdXIgdG9vbCBzaXRlIHdpdGggY2xlYW4sIHJldXNhYmxlIGJ1aWxkaW5nIGJsb2Nrcy4=

Common use cases

Encoding payload fragments for tests
Decoding token segments during debugging
Preparing safe transport strings for tutorials

FAQ

Can I decode binary files with this tool?

This version is optimized for text input and does not decode binary files.

What encoding does it use?

The utility converts text using UTF-8 before Base64 encoding so common non-ASCII characters remain intact.

How it works

Convert plain text to Base64 or decode Base64 back to readable text in a privacy-safe browser workflow. The result is produced immediately so you can review it before copying or using it elsewhere.

Privacy

The tool is designed to process ordinary input in your browser. Avoid pasting passwords, private keys, access tokens, personal records, or other sensitive production data into any online utility.

Limitations

This utility handles the focused workflow described on this page. Check the result before production use, especially when an input depends on a vendor-specific format, security rule, or external standard.

Learn the essentials

Understanding Base64 Studio

Base64 represents binary or text data using a restricted set of printable characters. It is useful when a system expects text, but it is an encoding format rather than encryption.

When Base64 is useful

Common uses include embedding small assets, representing bytes in JSON, inspecting token segments, and moving text through systems that are not safe for arbitrary binary data.

Base64 is not secrecy

Encoded values can be decoded without a password. Do not use Base64 to hide credentials, personal information, API keys, or other secrets.

Base64 and Base64URL

Base64URL replaces characters that can be awkward in URLs and usually omits padding. JWT segments use the URL-safe form, so ordinary Base64 decoders may need normalization before decoding them.