Updated Developer Tools

Base64 Encoder/Decoder

Encode text or files to Base64, decode Base64 back to text or downloadable files, and work with URL-safe Base64 and Data URIs.

Text Files URL-safe Data URI

Base64 Encoding, Decoding, URL-Safe Conversion, and Data URI Tools

Paste input or choose a file, pick options, and get clean output with size details and download support.

Mode

Text Encoding

Line Breaks

Trim Input Whitespace

Accept URL-Safe on Decode

Padding (=)

Input

Output

Mode

MIME Type (for Data URI)

Output Filename

Output as Data URI

Padding (=)

Accept URL-Safe on Decode

Choose File (for encoding)

Input Base64 (for decoding)

Output

Convert

Padding (=)

Trim Whitespace

Normalize Newlines

Strict Alphabet Check

Explain Changes

Input

Output

Mode

MIME Type

Charset (text types)

Encode Component

Trim Input

Base64 Padding (=)

Input

Output

Base64 Encoder/Decoder

Base64 Encoding, Decoding, URL-Safe Conversion, and Data URI Tools

Status

Input Size

Output Size

Expansion

Alphabet

Quick Tip

Status

Binary Size

Base64 Size

Filename

MIME

Tip

Status

Padding

Replacements

Length

Alphabet

Tip

Status

MIME

Encoding

Payload Size

Total Size

Tip

Base64 Encoder/Decoder

Base64 Encoding, Decoding, URL-Safe Conversion, and Data URI Tools

Status

Input Size

Output Size

Expansion

Alphabet

Quick Tip

Status

Binary Size

Base64 Size

Filename

MIME

Tip

Status

Padding

Replacements

Length

Alphabet

Tip

Status

MIME

Encoding

Payload Size

Total Size

Tip

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