Encoders & Utilities
Encode and decode Base64 with full UTF-8 support, and inspect JWT headers and payloads without verifying signatures or uploading tokens.
Base64 Encoder
Encode text to Base64 with full UTF-8 support.
Base64 Decoder
Decode Base64 to UTF-8 text safely in your browser.
JWT Decoder
Decode JWT header and payload - never sent to a server.
HAR Sanitizer
Redact secrets from HAR archives before sharing.
HTML Encoder / Decoder
Encode or decode HTML entities in your browser.
JavaScript String Escaper / Unescaper
Escape or unescape JavaScript string contents.
XML String Escaper / Unescaper
Escape or unescape XML special characters.
SVG Viewer
Preview SVG markup safely in your browser.
Frequently Asked Questions
Is Base64 encryption?
No - it is encoding only and offers no confidentiality.
Does the JWT decoder verify signatures?
No. It decodes claims for debugging only and states that clearly on the tool page.