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Encoding Tools

Base64 Encoder/Decoder

Encode text to Base64 or decode Base64 strings back to plain text instantly.

Base64 Encoder/Decoder by Utilflow. Encodes plain text to Base64 format or decodes Base64 strings back to readable text. Supports UTF-8 encoding.

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Processing mode

Browser-side processing

Accepted input

Text input

Output format

On-screen output

File limit

No file upload limit

Batch limit

Single text session

Category

Base64, URL encoding, and data format conversion.

What this tool does

Encodes plain text to Base64 format or decodes Base64 strings back to readable text. Supports UTF-8 encoding.

How it works

Uses the browser's native btoa() and atob() functions with UTF-8 handling. All processing is client-side.

Performance profile

Instant encoding/decoding for typical text lengths.

Common use cases

The strongest fit for base64 encoder/decoder is practical, repeatable file work where teams want speed without losing clarity.

Encoding credentials for API headers

Decoding Base64 data from APIs

Preparing data for URL-safe transmission

Frequently asked questions

What does Base64 Encoder/Decoder do?

Encodes plain text to Base64 format or decodes Base64 strings back to readable text. Supports UTF-8 encoding.

How does Base64 Encoder/Decoder process files?

Uses the browser's native btoa() and atob() functions with UTF-8 handling. All processing is client-side.

Is Base64 Encoder/Decoder private?

100% client-side. Your data never leaves your browser.

What are the limits for Base64 Encoder/Decoder?

Binary file encoding not supported in Phase 1 (text only) Very large strings may slow down

Ready to use base64 encoder/decoder inside the full workspace?

Public pages handle discovery and sharing. The private dashboard handles the actual run flow, saved activity, and your account-level workspace.

Create account to use it