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Convert text and data to or from Base64 with quick copy-ready outputs.
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Choose encode or decode mode.
Paste text or Base64 input into the editor.
Enable URL-safe handling when required.
Copy the output for your implementation workflow.
API request/response debugging
JWT-related base64url checks
Data URI generation and inspection
Encoding checks in integration tests
Base64 is a transport encoding format, not encryption. It is often used when binary or structured data must move through text channels.
This page is designed for utility intent: convert quickly, verify output, and continue integration work.
If decoded output looks incorrect, check whether the source uses standard Base64 or URL-safe Base64 variants.
Encode and decode Base64. Convert string to Base64, Base64 to image (with preview), PDF, hex, or file. URL-safe mode for JWT.