Base64 Encode & Decode
Encode and decode text with Base64, safe for UTF-8 content. V1 handles text only — no file uploads.
Content is processed in your browser and never uploaded
Output
SGVsbG8sIFR3b1RoaW5r
Settings
Content is processed in your browser and never uploaded
Related tools
- URL Encode & DecodeencodeURIComponent / decode, so parameters survive non-ASCII text.
- Base ConverterConvert between 2 / 8 / 10 / 16, with big numbers and negative values.
- JWT DecoderInspect the header and payload; the signature is not verified.
- Hash CalculatorSHA-1 / 256 / 384 / 512, computed purely in the browser.
Frequently asked questions
- Is my content uploaded?
- No. Encoding and decoding happen locally in your browser.
- Will non-ASCII text come out garbled?
- Text is handled as UTF-8; avoid pasting content that was encoded with the wrong charset.
- Is it suitable for transferring files?
- Base64 grows the payload by about 33% — use a real file transfer for large files.