The "plain" codec is for plain text with no delimiting between events.

This is mainly useful on inputs and outputs that already have a defined framing in their transport protocol (such as zeromq, rabbitmq, redis, etc)



This plugin supports the following configuration options:

Required configuration options:

plain {

Available configuration options:

Setting Input typeRequiredDefault value


string, one of ["ASCII-8BIT", "Big5", "Big5-HKSCS", "Big5-UAO", "CP949", "Emacs-Mule", "EUC-JP", "EUC-KR", "EUC-TW", "GB18030", "GBK", "ISO-8859-1", "ISO-8859-2", "ISO-8859-3", "ISO-8859-4", "ISO-8859-5", "ISO-8859-6", "ISO-8859-7", "ISO-8859-8", "ISO-8859-9", "ISO-8859-10", "ISO-8859-11", "ISO-8859-13", "ISO-8859-14", "ISO-8859-15", "ISO-8859-16", "KOI8-R", "KOI8-U", "Shift_JIS", "US-ASCII", "UTF-8", "UTF-16BE", "UTF-16LE", "UTF-32BE", "UTF-32LE", "Windows-1251", "GB2312", "Windows-31J", "IBM437", "IBM737", "IBM775", "CP850", "IBM852", "CP852", "IBM855", "CP855", "IBM857", "IBM860", "IBM861", "IBM862", "IBM863", "IBM864", "IBM865", "IBM866", "IBM869", "Windows-1258", "GB1988", "macCentEuro", "macCroatian", "macCyrillic", "macGreek", "macIceland", "macRoman", "macRomania", "macThai", "macTurkish", "macUkraine", "CP950", "CP951", "stateless-ISO-2022-JP", "eucJP-ms", "CP51932", "EUC-JIS-2004", "GB12345", "ISO-2022-JP", "ISO-2022-JP-2", "CP50220", "CP50221", "Windows-1252", "Windows-1250", "Windows-1256", "Windows-1253", "Windows-1255", "Windows-1254", "TIS-620", "Windows-874", "Windows-1257", "MacJapanese", "UTF-7", "UTF8-MAC", "UTF-16", "UTF-32", "UTF8-DoCoMo", "SJIS-DoCoMo", "UTF8-KDDI", "SJIS-KDDI", "ISO-2022-JP-KDDI", "stateless-ISO-2022-JP-KDDI", "UTF8-SoftBank", "SJIS-SoftBank", "BINARY", "CP437", "CP737", "CP775", "IBM850", "CP857", "CP860", "CP861", "CP862", "CP863", "CP864", "CP865", "CP866", "CP869", "CP1258", "Big5-HKSCS:2008", "eucJP", "euc-jp-ms", "EUC-JISX0213", "eucKR", "eucTW", "EUC-CN", "eucCN", "CP936", "ISO2022-JP", "ISO2022-JP2", "ISO8859-1", "CP1252", "ISO8859-2", "CP1250", "ISO8859-3", "ISO8859-4", "ISO8859-5", "ISO8859-6", "CP1256", "ISO8859-7", "CP1253", "ISO8859-8", "CP1255", "ISO8859-9", "CP1254", "ISO8859-10", "ISO8859-11", "CP874", "ISO8859-13", "CP1257", "ISO8859-14", "ISO8859-15", "ISO8859-16", "CP878", "MacJapan", "ASCII", "ANSI_X3.4-1968", "646", "CP65000", "CP65001", "UTF-8-MAC", "UTF-8-HFS", "UCS-2BE", "UCS-4BE", "UCS-4LE", "CP932", "csWindows31J", "SJIS", "PCK", "CP1251", "external", "locale"]









  • Value can be any of: ASCII-8BIT, Big5, Big5-HKSCS, Big5-UAO, CP949, Emacs-Mule, EUC-JP, EUC-KR, EUC-TW, GB18030, GBK, ISO-8859-1, ISO-8859-2, ISO-8859-3, ISO-8859-4, ISO-8859-5, ISO-8859-6, ISO-8859-7, ISO-8859-8, ISO-8859-9, ISO-8859-10, ISO-8859-11, ISO-8859-13, ISO-8859-14, ISO-8859-15, ISO-8859-16, KOI8-R, KOI8-U, Shift_JIS, US-ASCII, UTF-8, UTF-16BE, UTF-16LE, UTF-32BE, UTF-32LE, Windows-1251, GB2312, Windows-31J, IBM437, IBM737, IBM775, CP850, IBM852, CP852, IBM855, CP855, IBM857, IBM860, IBM861, IBM862, IBM863, IBM864, IBM865, IBM866, IBM869, Windows-1258, GB1988, macCentEuro, macCroatian, macCyrillic, macGreek, macIceland, macRoman, macRomania, macThai, macTurkish, macUkraine, CP950, CP951, stateless-ISO-2022-JP, eucJP-ms, CP51932, EUC-JIS-2004, GB12345, ISO-2022-JP, ISO-2022-JP-2, CP50220, CP50221, Windows-1252, Windows-1250, Windows-1256, Windows-1253, Windows-1255, Windows-1254, TIS-620, Windows-874, Windows-1257, MacJapanese, UTF-7, UTF8-MAC, UTF-16, UTF-32, UTF8-DoCoMo, SJIS-DoCoMo, UTF8-KDDI, SJIS-KDDI, ISO-2022-JP-KDDI, stateless-ISO-2022-JP-KDDI, UTF8-SoftBank, SJIS-SoftBank, BINARY, CP437, CP737, CP775, IBM850, CP857, CP860, CP861, CP862, CP863, CP864, CP865, CP866, CP869, CP1258, Big5-HKSCS:2008, eucJP, euc-jp-ms, EUC-JISX0213, eucKR, eucTW, EUC-CN, eucCN, CP936, ISO2022-JP, ISO2022-JP2, ISO8859-1, CP1252, ISO8859-2, CP1250, ISO8859-3, ISO8859-4, ISO8859-5, ISO8859-6, CP1256, ISO8859-7, CP1253, ISO8859-8, CP1255, ISO8859-9, CP1254, ISO8859-10, ISO8859-11, CP874, ISO8859-13, CP1257, ISO8859-14, ISO8859-15, ISO8859-16, CP878, MacJapan, ASCII, ANSI_X3.4-1968, 646, CP65000, CP65001, UTF-8-MAC, UTF-8-HFS, UCS-2BE, UCS-4BE, UCS-4LE, CP932, csWindows31J, SJIS, PCK, CP1251, external, locale
  • Default value is "UTF-8"

The character encoding used in this input. Examples include UTF-8 and cp1252

This setting is useful if your log files are in Latin-1 (aka cp1252) or in another character set other than UTF-8.

This only affects "plain" format logs since json is UTF-8 already.


  • Value type is string
  • There is no default value for this setting.

Set the message you which to emit for each event. This supports sprintf strings.

This setting only affects outputs (encoding of events).