Issues

• [BUG] parseString method is not runtime-safe

  bug
  C2FO/fast-csv#1267 · Filter by author ericyd opened on Sep 3, 2026
  1

  

• [BUG] Setting Headers Results in Empty Data

  bug
  C2FO/fast-csv#1246 · Filter by author sjenkins20 opened on Jul 13, 2026
  

• discussion: ESM-only

  C2FO/fast-csv#1233 · Filter by author gameroman opened on May 28, 2026
  1

• [BUG]Outdated dependencies detected in package

  bug
  C2FO/fast-csv#1226 · Filter by author FlorineChen113 opened on May 13, 2026
  1

  

• [FEATURE] transform headers in format

  enhancement
  C2FO/fast-csv#1161 · Filter by author MikeDabrowski-EQM opened on Sep 29, 2025
  1

  

• [BUG] ParserOptions throws an error with undefined delimiter

  bug
  C2FO/fast-csv#1160 · Filter by author McAllaster opened on Sep 26, 2025
  

• Outdated dependencies detected in package

  enhancement
  C2FO/fast-csv#1155 · Filter by author amritmmmec opened on Sep 18, 2025
  3

  

• [BUG] BOM is not written when writeToBuffer()'s first argument is an empty array

  bug
  C2FO/fast-csv#1148 · Filter by author oono-dev opened on Aug 25, 2025
  

• [BUG] Should end be emitted after a parse error like column header mismatch?

  bug
  C2FO/fast-csv#1113 · Filter by author Be3751 opened on Apr 20, 2025
  

• [BUG] parseStream() does not work as expected when the is invalid rows

  bug
  C2FO/fast-csv#1095 · Filter by author ajay-psd opened on Feb 10, 2025
  

• [BUG] parseStream() does not work as expected when there is invalid CSV rows

  bug
  C2FO/fast-csv#1093 · Filter by author ajay-psd opened on Feb 6, 2025
  

• [FEATURE] multiple delimeters

  enhancement
  C2FO/fast-csv#1054 · Filter by author willm opened on Nov 8, 2024
  

• [QUESTION] Why aren't these two statements equivalent?

  C2FO/fast-csv#1033 · Filter by author seguri opened on Oct 15, 2024

• [BUG] Format concats lines when reading from multiple streams to one file

  bug
  C2FO/fast-csv#934 · Filter by author krystian-wolarek opened on Apr 5, 2024
  

• [FEATURE] Documentation request: example of exception in on('headers') handler

  enhancement
  C2FO/fast-csv#865 · Filter by author ConradHughes opened on Jan 12, 2024
  

• [FEATURE] Parsing row issue

  enhancement
  C2FO/fast-csv#830 · Filter by author LiYiuShing opened on Jul 21, 2023
  1

  

• [BUG] : Streaming gets stopped and goes to "end" event if row encounters "numerics at the end of the string" like "something_10".

  bug
  C2FO/fast-csv#826 · Filter by author rajatsinghcms opened on Jun 5, 2023
  1

  

• [BUG] The | character causes unnecessary quotation of the value

  bug
  C2FO/fast-csv#787 · Filter by author pepkin88 opened on Dec 2, 2022
  2

  

• [FEATURE]sfdx version --verbose --json

  enhancement
  C2FO/fast-csv#785 · Filter by author kssalesforce7 opened on Nov 29, 2022
  

• [BUG] CSV Streams severely limited in capacity

  bug
  C2FO/fast-csv#784 · Filter by author Komefumi opened on Nov 26, 2022
  2

  

• Trailing comma behaviour has changed between 4.3.1 and latest

  bug
  C2FO/fast-csv#782 · Filter by author tom-thorne opened on May 12, 2022
  

• [FEATURE] Support transform FormatterOptionsArgs of type 'A -> A | B -> B'

  enhancement
  C2FO/fast-csv#780 · Filter by author varun-dc opened on Apr 11, 2022
  

• [BUG] comment doesn't work when first field in line is escaped

  bug
  C2FO/fast-csv#777 · Filter by author amitbeck opened on Feb 28, 2022
  

• [Question] end() usage on writing data to csv file

  C2FO/fast-csv#776 · Filter by author 300LiterPropofol opened on Feb 25, 2022

• [BUG] 'Column header mismatch' reason gets lost

  bug
  C2FO/fast-csv#772 · Filter by author igor-tatarnikov opened on Feb 7, 2022
  1