Base64 Tools
Validate Base64
Paste Base64 strings or Data URIs to verify format compliance, detect MIME types, inspect padding characters, and sanitize whitespace for clean validation results.
Validate Base64
Check Base64 syntax and padding instantly
Detect Data URIs, sanitize whitespace, verify length alignment, and confirm Base64 integrity.
Uncertain if a string is properly Base64-encoded? Paste it here to verify syntax, length alignment, and padding compliance—Data URIs are auto-detected and stripped for validation.
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Base64 Workbench
LiveEncode or decode Base64 strings and data URIs
Base64 Decode
LiveDecode Base64 strings or full Data URIs entirely in the browser with stats, sanitization, and smart download helpers.
Base64 Encode
LiveEncode text into Base64 with wrapping controls, Data URI prefixes, file uploads, and instant stats.