Base64 Validator

Upload File to encode content
Accepted: txt, json, yaml, csv, tsv, html, xml, md

Base64 Validation: Complete Guide

Base64 validation ensures that a string is properly formatted Base64 data. Here's what you need to know:

  • Syntax validation - Check proper Base64 character set
  • Length validation - Verify correct padding and length
  • Character validation - Ensure only valid Base64 characters
  • Padding validation - Check proper padding with '=' characters

Our Base64 validator checks for syntax errors, validates character set, and provides detailed error messages.

Common Base64 Validation Errors:

  • Invalid characters (only A-Z, a-z, 0-9, +, /, = allowed)
  • Incorrect padding
  • Wrong string length
  • Missing or extra characters