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Base64 Encoder

Encode and decode Base64 text or files instantly. Private, browser-only processing.

Input: 0 chars → Output: 0 chars

How It Works

01

Choose

Select Encode or Decode mode

02

Input

Type text or upload a file

03

Copy

Copy the Base64 output

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About Base64 Encoder Decoder

Our free Base64 tool encodes and decodes text and files instantly. Convert strings to Base64 for APIs, data URIs, and email attachments — or decode Base64 back to readable text.

All processing runs in your browser. Text and files never leave your device, making it safe for tokens, credentials, and sensitive data you need to encode or inspect.

Essential for Indian developers working with REST APIs, JWT tokens, image data URIs, email MIME encoding, and anyone debugging Base64 strings from logs or API responses.

Read the full guide: Base64 encode and decode complete guide

When Should You Use Base64?

API development

Encode authorization headers and payload data for API testing.

Data URIs

Encode small images or files as Base64 for inline HTML embedding.

Debugging

Decode Base64 strings from logs to read the original content.

File encoding

Convert any file up to 5MB to Base64 text.

Email MIME

Encode text content for email attachment workflows.

Frequently Asked Questions