ChekakStore/ツール/Base64 Encodeエンコード📤Base64 EncodeEncode text to Base64tools.chekak.storeで開くtools.chekak.store/tool/base64-encodeEncode text to Base64関連ツール📥Base64 DecodeDecode Base64 to text🔗URL EncodePercent-encode URL🔓URL DecodeDecode URL-encoded string🔢Hex EncodeText to hex (UTF-8)🔣Hex DecodeHex to text🧷HTML EscapeEscape HTML special chars