npm · #3010 most downloaded on npm

@fast-csv/parse

5.0.7C2FO/fast-csv ↗New releases in your daily digest, changelog included.

fast-csv parsing package

Last release 5 months ago
06 May 2026
Ships unpredictably
gaps range from 2 weeks to 3.1 years
Nearly every release is documented
notes for 20 of 20 stable releases
Nothing withdrawn
no release was ever pulled
7 years old
21 releases · first in 2019

Release timeline

21 releases since 2019

20192020202120222023202420252026

Releases

5.0.76 May 20263 sources agree
deps: update dependency @types/yargs to v17.0.33
5.0.7 (2026-05-06)

Bug Fixes

deps: update dependency @types/yargs to v17.0.33 (#1146) (bfa5b0c)

deps: update dependency @types/yargs to v17.0.35 (#1165) (d91a6e8)

deps: update dependency typescript to v5.9.2 (#1130) (88e40c5)

deps: update dependency typescript to v5.9.2 (#1137) (132e7e0)

deps: update dependency typescript to v5.9.3 (#1163) (f344b83)

deps: update docusaurus monorepo to v3.6.2 (#1051) (b41a649)

deps: update jest monorepo to v30 (#1133) (5a5540e)

deps: update jest monorepo to v30.2.0 (#1149) (c9233f5)

Reverts

Revert "fix(deps): update dependency typescript to v5.9.2 (#1130)" (#1136) (15cb9f5), closes #1130 #1136

From the same repository

C2FO/fast-csv

One column per quarter.

5.0.54 Aug 2025

chore(deps): update actions/cache action to v4 by @renovate[bot] in https://github.com/C2FO/fast-csv/pull/878

What's Changed

chore(deps): update actions/cache action to v4 by @renovate[bot] in https://github.com/C2FO/fast-csv/pull/878
chore(deps): update dependency node to v20.18.0 by @renovate[bot] in https://github.com/C2FO/fast-csv/pull/909
chore(deps): update dependency typescript to v5.6.3 by @renovate[bot] in https://github.com/C2FO/fast-csv/pull/922
chore(deps): update dependency @types/jest to v29.5.14 by @renovate[bot] in https://github.com/C2FO/fast-csv/pull/1040
chore(deps): update dependency @types/node to ^22.7.8 by @renovate[bot] in https://github.com/C2FO/fast-csv/pull/1041
chore(deps): update dependency @types/node to v22.8.0 by @renovate[bot] in https://github.com/C2FO/fast-csv/pull/1042
chore(deps): update dependency @types/node to v22.8.1 by @renovate[bot] in https://github.com/C2FO/fast-csv/pull/1043
chore(deps): update dependency @types/node to v22.8.2 by @renovate[bot] in https://github.com/C2FO/fast-csv/pull/1044
chore(deps): update dependency @types/node to v22.8.4 by @renovate[bot] in https://github.com/C2FO/fast-csv/pull/1045
chore(deps): update dependency @types/node to v22.8.5 by @renovate[bot] in https://github.com/C2FO/fast-csv/pull/1047
chore(deps): update dependency lerna to v8.1.9 by @renovate[bot] in https://github.com/C2FO/fast-csv/pull/1048
chore(deps): update dependency @types/node to v22.8.6 by @renovate[bot] in https://github.com/C2FO/fast-csv/pull/1049
chore(deps): update dependency @types/node to v22.8.7 by @renovate[bot] in https://github.com/C2FO/fast-csv/pull/1050
chore(deps): update dependency @types/node to v22.9.0 by @renovate[bot] in https://github.com/C2FO/fast-csv/pull/1052
chore(deps): update dependency eslint-plugin-jest to v28.9.0 by @renovate[bot] in https://github.com/C2FO/fast-csv/pull/1053
chore(deps): update commitlint monorepo to v19.6.0 by @renovate[bot] in https://github.com/C2FO/fast-csv/pull/1057
chore(deps): update dependency husky to v9.1.7 by @renovate[bot] in https://github.com/C2FO/fast-csv/pull/1056
chore(deps): update dependency @types/node to v22.9.1 by @renovate[bot] in https://github.com/C2FO/fast-csv/pull/1058
update branch by @juanri0s in https://github.com/C2FO/fast-csv/pull/1059
fix(deps): update docusaurus monorepo to v3.6.2 by @renovate[bot] in https://github.com/C2FO/fast-csv/pull/1051
chore(deps): update dependency @types/node to v22.9.2 by @renovate[bot] in https://github.com/C2FO/fast-csv/pull/1063
chore(deps): update dependency eslint-plugin-tsdoc to v0.4.0 by @renovate[bot] in https://github.com/C2FO/fast-csv/pull/1064
chore(deps): update dependency @types/node to v22.9.3 by @renovate[bot] in https://github.com/C2FO/fast-csv/pull/1065
chore(deps): update dependency @types/node to v22.9.4 by @renovate[bot] in https://github.com/C2FO/fast-csv/pull/1066
chore(deps): update dependency @types/node to v22.10.0 by @renovate[bot] in https://github.com/C2FO/fast-csv/pull/1067
chore(deps): update dependency prettier to v3.4.0 by @renovate[bot] in https://github.com/C2FO/fast-csv/pull/1068
chore(deps): update dependency prettier to v3.4.1 by @renovate[bot] in https://github.com/C2FO/fast-csv/pull/1069
chore(deps): update dependency @types/node to v22.10.1 by @renovate[bot] in https://github.com/C2FO/fast-csv/pull/1070
chore(deps): update dependency prettier to v3.4.2 by @renovate[bot] in https://github.com/C2FO/fast-csv/pull/1071
chore(deps): update dependency @types/node to v22.10.2 by @renovate[bot] in https://github.com/C2FO/fast-csv/pull/1073
chore(deps): update dependency @commitlint/cli to v19.6.1 by @renovate[bot] in https://github.com/C2FO/fast-csv/pull/1074
chore(deps): update dependency eslint-plugin-jest to v28.10.0 by @renovate[bot] in https://github.com/C2FO/fast-csv/pull/1075
chore(deps): update dependency @types/node to v22.10.3 by @renovate[bot] in https://github.com/C2FO/fast-csv/pull/1076
chore(deps): update dependency @types/node to v22.10.4 by @renovate[bot] in https://github.com/C2FO/fast-csv/pull/1077
chore(deps): update dependency @types/node to v22.10.5 by @renovate[bot] in https://github.com/C2FO/fast-csv/pull/1078
chore(deps): update dependency @commitlint/config-angular to v19.7.0 by @renovate[bot] in https://github.com/C2FO/fast-csv/pull/1079
chore(deps): update dependency eslint-config-prettier to v10 by @renovate[bot] in https://github.com/C2FO/fast-csv/pull/1080
chore(deps): update dependency @types/node to v22.10.6 by @renovate[bot] in https://github.com/C2FO/fast-csv/pull/1081
chore(deps): update dependency eslint-plugin-jest to v28.11.0 by @renovate[bot] in https://github.com/C2FO/fast-csv/pull/1082
chore(deps): update dependency eslint-plugin-prettier to v5.2.2 by @renovate[bot] in https://github.com/C2FO/fast-csv/pull/1083
chore(deps): update dependency @types/node to v22.10.7 by @renovate[bot] in https://github.com/C2FO/fast-csv/pull/1084
chore(deps): update dependency eslint-plugin-prettier to v5.2.3 by @renovate[bot] in https://github.com/C2FO/fast-csv/pull/1085
chore(deps): update dependency @types/node to v22.10.9 by @renovate[bot] in https://github.com/C2FO/fast-csv/pull/1086
chore(deps): update dependency @types/node to v22.10.10 by @renovate[bot] in https://github.com/C2FO/fast-csv/pull/1087
chore(deps): update dependency @types/node to v22.12.0 by @renovate[bot] in https://github.com/C2FO/fast-csv/pull/1089
chore(deps): update dependency @types/node to v22.13.0 by @renovate[bot] in https://github.com/C2FO/fast-csv/pull/1090
chore(deps): update commitlint monorepo to v19.7.1 by @renovate[bot] in https://github.com/C2FO/fast-csv/pull/1091
chore(deps): update dependency @types/node to v22.13.1 by @renovate[bot] in https://github.com/C2FO/fast-csv/pull/1092
chore(deps): update dependency prettier to v3.5.0 by @renovate[bot] in https://github.com/C2FO/fast-csv/pull/1094
Remove lodash.isequal in favor of built-in array method by @amccarthy1 in https://github.com/C2FO/fast-csv/pull/1038
chore(deps): update dependency @types/node to v22.13.2 by @renovate[bot] in https://github.com/C2FO/fast-csv/pull/1096
chore(deps): update dependency prettier to v3.5.1 by @renovate[bot] in https://github.com/C2FO/fast-csv/pull/1097
chore(deps): update dependency @types/node to v22.13.4 by @renovate[bot] in https://github.com/C2FO/fast-csv/pull/1098
chore(deps): update dependency lerna to v8.2.0 by @renovate[bot] in https://github.com/C2FO/fast-csv/pull/1100
chore(deps): update dependency @types/node to v22.13.5 by @renovate[bot] in https://github.com/C2FO/fast-csv/pull/1102
chore(deps): update dependency prettier to v3.5.2 by @renovate[bot] in https://github.com/C2FO/fast-csv/pull/1103
chore(deps): update dependency @types/sinon to v17.0.4 by @renovate[bot] in https://github.com/C2FO/fast-csv/pull/1104
chore(deps): update dependency ts-jest to v29.2.6 by @renovate[bot] in https://github.com/C2FO/fast-csv/pull/1105
chore(deps): update dependency eslint-config-prettier to v10.0.2 by @renovate[bot] in https://github.com/C2FO/fast-csv/pull/1106
chore(deps): update dependency lerna to v8.2.1 by @renovate[bot] in https://github.com/C2FO/fast-csv/pull/1108
chore(deps): update dependency prettier to v3.5.3 by @renovate[bot] in https://github.com/C2FO/fast-csv/pull/1109
Juan/dependency upgrades april by @juanri0s in https://github.com/C2FO/fast-csv/pull/1114
chore(deps-dev): bump form-data from 4.0.2 to 4.0.4 by @dependabot[bot] in https://github.com/C2FO/fast-csv/pull/1117
chore(deps-dev): bump brace-expansion from 1.1.11 to 1.1.12 by @dependabot[bot] in https://github.com/C2FO/fast-csv/pull/1118
chore(deps): update dependency lerna to v8.2.3 by @renovate[bot] in https://github.com/C2FO/fast-csv/pull/1120
chore(deps): update dependency sinon to v19.0.5 by @renovate[bot] in https://github.com/C2FO/fast-csv/pull/1121
chore(deps): update commitlint monorepo to v19.8.1 by @renovate[bot] in https://github.com/C2FO/fast-csv/pull/1122
chore(deps): update dependency eslint-config-prettier to v10.1.8 by @renovate[bot] in https://github.com/C2FO/fast-csv/pull/1123
updates by @juanri0s in https://github.com/C2FO/fast-csv/pull/1119
chore(deps): update dependency sinon to v21 by @renovate[bot] in https://github.com/C2FO/fast-csv/pull/1131
chore(deps): update dependency eslint-plugin-jest to v28.14.0 by @renovate[bot] in https://github.com/C2FO/fast-csv/pull/1125
chore(deps): update dependency eslint-plugin-import to v2.32.0 by @renovate[bot] in https://github.com/C2FO/fast-csv/pull/1124
chore(deps): update dependency prettier to v3.6.2 by @renovate[bot] in https://github.com/C2FO/fast-csv/pull/1126
chore(deps): update dependency ts-jest to v29.4.0 by @renovate[bot] in https://github.com/C2FO/fast-csv/pull/1127
fix(deps): update jest monorepo to v30 (major) by @renovate[bot] in https://github.com/C2FO/fast-csv/pull/1133
chore(deps): update dependency ts-jest to v29.4.1 by @renovate[bot] in https://github.com/C2FO/fast-csv/pull/1134

New Contributors

@amccarthy1 made their first contribution in https://github.com/C2FO/fast-csv/pull/1038

Full Changelog: https://github.com/C2FO/fast-csv/compare/v5.0.2...v5.0.5

Open source →

Additional notes2 sources agree

Bug Fixes

deps: update docusaurus monorepo to v3.6.2 (#1051) (b41a649)
deps: update jest monorepo to v30 (#1133) (5a5540e)

Open source →

5.0.222 Oct 20242 sources agree

deps: update docusaurus monorepo to v3.3.2

5.0.2 (2024-10-22)

Bug Fixes

deps: update docusaurus monorepo to v3.3.2 (#888) (60f5e27)
deps: update docusaurus monorepo to v3.4.0 (#961) (cef2f2e)

Open source →

Additional notes

Bug Fixes

deps: update docusaurus monorepo to v3.3.2 (#888) (60f5e27)
deps: update docusaurus monorepo to v3.4.0 (#961) (cef2f2e)

5.0.0 (2024-01-13)

Bug Fixes

deps: update dependency classnames to v2.4.0 (#642) (3ce8ad8)
deps: update dependency classnames to v2.5.0 (#847) (8a38bd2)
deps: update dependency classnames to v2.5.1 (#849) (4187b08)
deps: update docusaurus monorepo to v2.4.3 (#531) (ed71ed4)
deps: update docusaurus monorepo to v3 (#844) (7fdb903)
deps: update docusaurus monorepo to v3.1.0 (#855) (4f67398)
deps: update react monorepo to v18 (#845) (a447d06)

Open source →

5.0.013 Jan 2024

Added missing single quote in error message

5.0.0 (2024-01-13)

Bug Fixes

Added missing single quote in error message (#656) (b9dceab)
deps: Fix up @types node package incorrectly involved in dependencies, closes #774 (#838) (83315a6)
deps: update dependency @types/yargs to v16.0.1 (024ec2c)
deps: update dependency classnames to v2.4.0 (#642) (3ce8ad8)
deps: update dependency classnames to v2.5.0 (#847) (8a38bd2)
deps: update dependency classnames to v2.5.1 (#849) (4187b08)
deps: update dependency globby to v11.0.2 (57953cc)
deps: update dependency globby to v11.0.3 (e310319)
deps: update dependency globby to v11.1.0 (#678) (0ea420d)
deps: update dependency jest-diff to v29 (#672) (b962de0)
deps: update dependency yargs to v16.2.0 (d9420d8)
deps: update dependency yargs to v17 (#673) (0d33b48)
deps: update docusaurus monorepo to v2.4.3 (#531) (ed71ed4)
deps: update docusaurus monorepo to v3 (#844) (7fdb903)
deps: update docusaurus monorepo to v3.1.0 (#855) (4f67398)
deps: update react monorepo to v18 (#845) (a447d06)

Open source →

4.3.64 Dec 20202 sources agree

Simplify empty row check by removing complex regex

4.3.6 (2020-12-04)

Bug Fixes

Simplify empty row check by removing complex regex (4bbd39f)
deps: update dependency @types/yargs to v15.0.10 (9af7a41)
deps: update dependency yargs to v16.1.1 (057a4da)

Open source →

4.3.330 Oct 20202 sources agree

deps: update dependency @docusaurus/core to v2.0.0-alpha.66

4.3.3 (2020-10-30)

Bug Fixes

deps: update dependency @docusaurus/core to v2.0.0-alpha.66 (8afdd1e)
deps: update dependency @docusaurus/preset-classic to v2.0.0-alpha.66 (4a854a1)
deps: update dependency @types/yargs to v15.0.9 (a46ac39)
deps: update dependency yargs to v16 (b28b662)
deps: update react monorepo to v17 (93d3450)

Open source →

4.3.22 Sept 20202 sources agree

deps: update dependency yargs to v15.4.1

4.3.2 (2020-09-02)

Bug Fixes

deps: update dependency yargs to v15.4.1 (74fd72f)
parsing, #423: Prevent callback from being called multiple times (040febe), closes #423
release command (79ec47f)

Open source →

4.3.123 Jun 2020

deps: update dependency @docusaurus/core to v2.0.0-alpha.56

4.3.1 (2020-06-23)

Bug Fixes

deps: update dependency @docusaurus/core to v2.0.0-alpha.56 (87c9cdb)
deps: update dependency @docusaurus/core to v2.0.0-alpha.58 (7b10f7e)
deps: update dependency @docusaurus/preset-classic to v2.0.0-alpha.56 (2cafdac)
deps: update dependency @docusaurus/preset-classic to v2.0.0-alpha.58 (a4a1e3f)
deps: update dependency globby to v11.0.1 (9a21f53)
parsing: Pass errors through callbacks (84ecdf6)

Open source →

Additional notes

Bug Fixes

deps: update dependency @docusaurus/core to v2.0.0-alpha.56 (87c9cdb)
deps: update dependency @docusaurus/core to v2.0.0-alpha.58 (7b10f7e)
deps: update dependency @docusaurus/preset-classic to v2.0.0-alpha.56 (2cafdac)
deps: update dependency @docusaurus/preset-classic to v2.0.0-alpha.58 (a4a1e3f)
deps: update dependency globby to v11.0.1 (9a21f53)
parsing: Pass errors through callbacks (84ecdf6)

4.3.0 (2020-05-27)

Bug Fixes

deps: update dependency @docusaurus/core to v2.0.0-alpha.55 (84b8491)
deps: update dependency @docusaurus/preset-classic to v2.0.0-alpha.55 (9b7e40c)

4.2.0 (2020-05-19)

Bug Fixes

deps: update dependency @docusaurus/preset-classic to v2.0.0-alpha.54 (f1fcc46)
deps: update dependency @types/yargs to v15 (44bcccc)
deps: update react monorepo to v16.13.1 (cdb0d89)

Features

parsing: Less restrictive row parsing type #356 (87d74ec)

Open source →

4.3.027 May 2020

deps: update dependency @docusaurus/core to v2.0.0-alpha.55

4.3.0 (2020-05-27)

Bug Fixes

deps: update dependency @docusaurus/core to v2.0.0-alpha.55 (84b8491)
deps: update dependency @docusaurus/preset-classic to v2.0.0-alpha.55 (9b7e40c)

Open source →

4.2.019 May 2020

deps: update dependency @docusaurus/preset-classic to v2.0.0-alpha.54

4.2.0 (2020-05-19)

Bug Fixes

deps: update dependency @docusaurus/preset-classic to v2.0.0-alpha.54 (f1fcc46)
deps: update dependency @types/yargs to v15 (44bcccc)
deps: update react monorepo to v16.13.1 (cdb0d89)

Features

parsing: Less restrictive row parsing type #356 (87d74ec)

Open source →

4.1.615 May 20202 sources agree

deps: update dependency @docusaurus/core to v2.0.0-alpha.54

4.1.6 (2020-05-15)

Bug Fixes

deps: update dependency @docusaurus/core to v2.0.0-alpha.54 (24a0473)
parse: Handle escaped escape properly #340 (78d9b16)

Open source →

4.1.515 May 20202 sources agree

Fix for #345 remove revert to old tsconfig.build

4.1.5 (2020-05-15)

Bug Fixes

Fix for #345 remove revert to old tsconfig.build (aa4488f)

Open source →

4.1.415 May 2020

## 4.1.4 (2020-05-15) ### Bug Fixes * Fix lerna:version command

4.1.4 (2020-05-15)

Bug Fixes

Fix lerna:version command (6da1eb3)

Open source →

Additional notes

Bug Fixes

Fix lerna:version command (6da1eb3)

Open source →

4.1.212 Mar 2020

New Docs powered by Docusaurus!

New Docs powered by Docusaurus!
New logo courtesy of @dylanstanfield

Open source →

4.1.119 Feb 2020

[FIXED] Issue where code is not built before publishing. #329

[FIXED] Issue where code is not built before publishing. #329

Open source →

4.1.014 Feb 2020

[ADDED] A new headers event that will be emitted when headers are parsed [#321]

[ADDED] A new headers event that will be emitted when headers are parsed [#321] (https://github.com/C2FO/fast-csv/issues/321)

Open source →

4.0.314 Feb 2020

[FIXED] Issue where invalid rows were not accounted for when skipRows was set #317

[FIXED] Issue where invalid rows were not accounted for when skipRows was set #317
[FIXED] Issue where readableObjectMode was not set to false when formatting #319
[FIXED] Issue where carriage returns and line feeds were not always quoted when formatting #320

Open source →

4.0.227 Dec 2019

[ADDED] writeHeaders to @fast-csv/format option to prevent writing headers.

[ADDED] writeHeaders to @fast-csv/format option to prevent writing headers.
- This makes appending to a csv easier and safer because you can still specify headers without writing them.

Open source →

4.0.126 Dec 20192 sources agree

[FIXED] package.json homepage links

[FIXED] package.json homepage links
[ADDED] version npm script

Open source →

4.0.026 Dec 20192 sources agree

Split parse and format packages

Migrated from mocha to jest
Moved to lerna.
- Split parse and format packages
Added running examples and checking output as part of the tests
Updated docs for new directory layout
Added typescript examples
Added generics type support to format and parse streams
[ADDED] Docs around using strictColumnHandling to emit errors when there are more columns than headers [#195]

Open source →

4.0.0-alpha.026 Dec 2019pre-release

Split parse and format packages

Migrated from mocha to jest
Moved to lerna.
- Split parse and format packages
Added running examples and checking output as part of the tests
Updated docs for new directory layout
Added typescript examples
Added generics type support to format and parse streams
[ADDED] Docs around using strictColumnHandling to emit errors when there are more columns than headers [#195]

Open source →

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@fast-csv/parse

Release timeline

Releases

5.0.7 (2026-05-06)

Bug Fixes

Reverts

From the same repository

What's Changed

New Contributors

Bug Fixes

5.0.2 (2024-10-22)

Bug Fixes

Bug Fixes

5.0.0 (2024-01-13)

Bug Fixes

5.0.0 (2024-01-13)

Bug Fixes

4.3.6 (2020-12-04)

Bug Fixes

4.3.3 (2020-10-30)

Bug Fixes

4.3.2 (2020-09-02)

Bug Fixes

4.3.1 (2020-06-23)

Bug Fixes

Bug Fixes

4.3.0 (2020-05-27)

Bug Fixes

4.2.0 (2020-05-19)

Bug Fixes

Features

4.3.0 (2020-05-27)

Bug Fixes

4.2.0 (2020-05-19)

Bug Fixes

Features

4.1.6 (2020-05-15)

Bug Fixes

4.1.5 (2020-05-15)

Bug Fixes

4.1.4 (2020-05-15)

Bug Fixes

Bug Fixes