Tools

Base64 Encoder

Encode or decode text locally, with proper Unicode support and a URL-safe option.

Free & local 833 uses
Encode / Decode

Tool Features

Correct Unicode

Encoding uses UTF-8, so Arabic and other scripts stay intact.

URL-safe option

Use an alphabet without + or /. Decoding also accepts line breaks and data-URL prefixes.

Encoding, not encryption

Base64 only changes the shape of data. It does not protect it with a password.

About Base64 Tool

This Base64 tool converts text to and from a text-safe encoding locally in your browser, without sending any data.

What is Base64?

Base64 is encoding, not encryption. It turns bytes into ASCII characters (A-Z a-z 0-9 + /) so binary data can travel as text.

How does it work?

Encoding turns every 3 bytes into 4 characters. Decoding reverses that. The URL-safe alphabet replaces + and / with - and _.

Why Use Base64?

  • Safe Transfer: Transfer binary data through channels that only support text.
  • Storage: Store binary data in databases or text files.
  • URLs: Embed data in URLs without using special characters.
  • APIs: Transfer data in JSON or XML safely.

Use Cases

  • Developers — Encode data in APIs, tokens, or store binary data as text.
  • Web Developers — Encode data in URLs, cookies, or transfer data between servers.
  • Application Developers — Encode data in applications, APIs, or store data securely.
  • Software Testers — Test encoding and decoding functions in applications and systems.
  • System Administrators — Encode sensitive data or transfer data between different systems.
  • Security Developers — Analyze and decode encoded data in security testing.

Frequently Asked Questions

Is the tool free?

Yes, the tool is completely free and requires no registration or subscription.

What is Base64?

Base64 is an encoding system used to convert binary data to ASCII text. It uses 64 characters to represent data.

Is Base64 secure?

Base64 is not a secure encryption system, it is an encoding system. It should not be used to protect sensitive data. It is only used to convert data to text.

Can I decode any Base64 text?

Yes, you can decode any valid Base64 text. If the text is invalid, an error message will appear.

Are encoded texts saved?

No, not at all. All encoding and decoding is done locally in your browser and no data is sent or saved on the server.

What is the difference between encryption and encoding?

Encoding (like Base64) converts data to another format without protection. Encryption protects data with a password or key.

Can Base64 be used in production?

Yes, Base64 is widely used in production for data transfer, but it should not be used as security protection.

Have an idea for a new tool?

If a tool would make your daily work easier, share the idea and I’ll look into adding it.