Base64 Encoder/Decoder: Carry Parameters Safely in QR Codes and Mini-Programs

Packing a short parameter with special characters into a QR code or link often uses Base64. Base64 Encoder/Decoder converts text and images locally.

2026-09-16

Building QR codes, mini-program jumps, or short links, parameters often contain Chinese, slashes, or other special characters that break inside a URL. Base64-encoding the parameter first lets it travel safely.

Base64 Encoder/Decoder quickly encodes parameters into a safe-character string that fits QR codes or links without errors, and decodes received encoded parameters for inspection.

It also converts between images and Base64, useful for carrying small images in QR codes or requests.

Letting parameters travel safely across channels underlies many features. Bookmark Base64 Encoder/Decoder and stop special characters from blocking parameter passing.

Try This ToolBase64 Encoder / DecoderBase64 encode/decode text, and convert between images and Base64Open Tool

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