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Base64 Encoder/Decoder
Encode and decode text payloads with URL-safe and padding controls for API and query workflows.
Output
Ready
Mode
Encode
Input chars
0
Output chars
0
When to use this tool
Use Base64 conversion when preparing payloads, storing compact text blobs, or decoding API fields.
URL-safe mode is helpful for query parameters and path-safe tokens.
Frequently asked questions
Can this tool encode and decode UTF-8 text?
Yes. The tool uses UTF-8 conversions so non-ASCII text is handled correctly when possible.
What is URL-safe Base64 mode?
URL-safe mode swaps plus and slash characters for dash and underscore to avoid URL conflicts.
Can I remove Base64 padding?
Yes. You can strip trailing padding during encode and restore it automatically during decode.
Related tools
Base64 encoder decoder online for UTF-8 payload conversion
This Base64 encoder decoder online tool handles UTF-8 text conversion for API payloads, config values, and transport-safe strings.
URL-safe mode and optional padding control make it practical for query parameters, JWT-like fragments, and script automation tasks.
Common production use cases
- Encode credentials and metadata for test payloads.
- Decode Base64 fields returned by APIs and logs.
- Generate URL-safe Base64 output for transport contexts.
- Swap decoded output back into input to debug conversions quickly.