Base64 String & File Encoder/Decoder
Encode and decode raw strings, binary buffers, and files to and from standard RFC 4648 Base64 and Base64URL formats.
Base64 Encoder & Decoder Interactive Studio
Real-Time Client-Side Engine ActiveLoading interactive tool interface...
Ideal Use Cases & Workflows
Encoding authentication headers, formatting data URIs, and inspecting API payloads.
100% Private & Client-Side Execution
This tool runs entirely within your web browser using modern WebAssembly and JavaScript engines. No sensitive customer payloads, tokens, or proprietary schemas are ever sent to or logged on remote servers.
- Zero server-side persistence or storage.
- Instant zero-latency computation without network bottlenecks.
- Compliant with enterprise data privacy standards (GDPR, HIPAA).
Frequently Asked Questions
What is the difference between Base64 and Base64URL?
Base64URL replaces '+' with '-' and '/' with '_' so strings can safely exist in URL parameters.
Is UTF-8 unicode supported?
Yes, full multi-byte UTF-8 string encoding is supported.
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