Developer

Base64 Tool

Encode and decode Base64 text with Unicode and URL-safe support.

Browser-onlyLocal inputNo upload
Local runner

Encode or decode Base64 locally

Base64 conversion runs locally in your browser. Input is not sent to ErgoKit Workers.

Enter text or Base64, choose the mode, then copy the converted result.

Checks

  • Unicode-safe UTF-8 conversion
  • Standard Base64 encode/decode
  • URL-safe Base64 alphabet
  • Optional padding for encoded output

Result

  • Converted output
  • Mode and alphabet summary
  • Input and output size
  • Copy result action

Guardrails

  • Runs fully in your browser
  • No network request is made
  • Input is not stored
  • Decoded output must be valid UTF-8 text

Privacy

This tool processes input locally in your browser. Input is not sent to ErgoKit Workers or stored.