I don't have prettier extension installed, but after reading the possible duplicate answer I've added from scratch in my User Setting (UserSetting.json, Ctrl+, shortcut):
"prettier.singleQuote": true
A part a green warning (Unknown configuration setting) the single quotes are no more replaced.
I suspect that the prettier extension is not visible but is embedded inside the Vetur extension.
Answer from attdona on Stack OverflowGitHub
github.com › prettier › prettier-vscode › issues › 1099
Prettier "prettier.singleQuote" not working in 1.40 vs code · Issue #1099 · prettier/prettier-vscode
November 26, 2019 - Expected result: File should format with "singleQuotes" File is formatted with double quotes · VS Code Version: Version: 1.40.1 (user setup) Commit: 8795a9889db74563ddd43eb0a897a2384129a619 Date: 2019-11-13T16:49:35.976Z Electron: 6.1.2 Chrome: 76.0.3809.146 Node.js: 12.4.0 V8: 7.6.303.31-electron.0 OS: Windows_NT x64 6.1.7601 · OS and version: Windows 7 Enterprise Version 6.1(Build 7601: Service Pack 1) [INFO - 10:09:39 AM] Extension Name: "prettier-vscode".
Author sreekumarp
GitHub
github.com › prettier › prettier › issues › 2338
Single quotes are sometimes replaced with double quotes even when "prettier.singleQuote: true" is specified · Issue #2338 · prettier/prettier
June 28, 2017 - Specifically, when prettier is run on a string like this: ... The expected behavior (I think) is to continue using single quotes since the setting prohibits the use of double quotes. My temporary workaround is to change the string to:
Author alexjlockwood
Videos
Top answer 1 of 16
294
I don't have prettier extension installed, but after reading the possible duplicate answer I've added from scratch in my User Setting (UserSetting.json, Ctrl+, shortcut):
"prettier.singleQuote": true
A part a green warning (Unknown configuration setting) the single quotes are no more replaced.
I suspect that the prettier extension is not visible but is embedded inside the Vetur extension.
2 of 16
210
Well, like @user2982122 mentioned but instead of File go to Code -> Preferences -> Settings, then look for Quote, select Prettier and check both boxes
GitHub
github.com › prettier › prettier-vscode › issues › 1085
cannot format doubleQuotes to singleQuote in single javascript file · Issue #1085 · prettier/prettier-vscode
November 21, 2019 - prettier / prettier-vscode Public · There was an error while loading. Please reload this page. Notifications · You must be signed in to change notification settings · Fork 509 · Star 5.5k · New issueCopy link · New issueCopy link · Closed · Closed · cannot format doubleQuotes to singleQuote in single javascript file#1085 ·
Author Fenglinwanyue
Medium
pjausovec.medium.com › prettier-single-quote-setting-not-respected-in-tsx-files-vs-code-8d34a9554b37
Prettier single quote setting not respected in .tsx files (VS Code) | by Peter Jausovec | Medium
March 7, 2021 - The solution is to set the jsxSingleQuote setting to true as well. This will change all double quotes in your .tsx files to single quote. Note that you’d want to keep the singleQuote setting around as well, if you want the single quotes in ...
Prettier
prettier.io › docs › options.html
Options · Prettier
July 5, 2023 - If the number of quotes outweighs the other quote, the quote which is less used will be used to format the string - Example: "I'm double quoted" results in "I'm double quoted" and "This \"example\" is single quoted" results in 'This "example" is single quoted'. See the strings rationale for more information. Change when properties in objects are quoted. ... Note that Prettier never unquotes numeric property names in Angular expressions, TypeScript, and Flow because the distinction between string and numeric keys is significant in these languages.
JetBrains
youtrack.jetbrains.com › issue › WEB-62586 › Importing-Prettier-Code-Style-with-singleQuotetrue-must-not-change-Code-StyleHTMLOtherGenerated-quote-marks-to-Single
Importing Prettier Code Style with { singleQuote:true } must ...
{{ (>_<) }} This version of your browser is not supported. Try upgrading to the latest stable version. Something went seriously wrong
GitHub
github.com › prettier › prettier-vscode › issues › 206
singleQuote config is not respected · Issue #206 · prettier/prettier-vscode
August 30, 2017 - bugSomething isn't workingSomething isn't workinglockedLocked due to inactivityLocked due to inactivity ... I always get my code with double quotes, even when I have set.
Author capaj
JetBrains
youtrack.jetbrains.com › issue › WEB-50619 › Prettier-is-converting-vue-html-attributes-to-single-quotes.-Only-want-JavaScript-strings-to-be-single-quote.
Prettier is converting vue html attributes to single quotes. ...
{{ (>_<) }} This version of your browser is not supported. Try upgrading to the latest stable version. Something went seriously wrong
GitHub
github.com › prettier › prettier-vscode › issues › 427
"prettier.singleQuote: true" not being honored for vanilla javascript files · Issue #427 · prettier/prettier-vscode
April 26, 2018 - // Force single quotes "prettier.singleQuote": true,
Author dfinton
Top answer 1 of 3
15
As you already have singleQuote: true set in your prettier config, I suspect that you're seeing your single quotes converted to double quotes specifically inside your JSX tags. This is because Prettier has a separate rule for JSX:
"jsxSingleQuote": true
Without this, even with "singleQuote": true, Prettier will still convert single quotes within JSX to double.
According to Prettier, double quotes in JSX is the default because it's descended from HTML, where double quotes are more common.
Set "jsxSingleQuote": true wherever you have your Prettier config, and that should do the trick.
2 of 3
9
This only happens if you have ' in your string e.g. ('it\'s a thing').
Prettier has this issue and there is apparently no solution to this.
My workaround is, using `` (string template syntax) for such strings and single quote for all other strings.
`it's a thing`
You don't have to escape this.
Prettier
prettier.io › docs › rationale.html
Rationale · Prettier
July 5, 2023 - Prettier only prints code. It does not transform it. This is to limit the scope of Prettier. Let’s focus on the printing and do it really well! Here are a few examples of things that are out of scope for Prettier: Turning single- or double-quoted strings into template literals or vice versa.
GitHub
github.com › prettier › prettier › issues › 2280
Trying to override eslint (using prettier) to use single quotes not double · Issue #2280 · prettier/prettier
June 27, 2017 - { "extends": "prettier", "env": { "browser": true, "node": true }, "parserOptions": { "ecmaVersion": 6, "sourceType": "module" }, "plugins": [ "prettier" ], "rules": { "prettier/prettier": "error", "quotes": ["error", "single"] } }
Author iangregsondev
GitHub
github.com › prettier › prettier-atom › issues › 427
Can't turn on singleQuote · Issue #427 · prettier/prettier-atom
June 19, 2018 - at the same time (see screenshot) ESLint, on bahalf of prettier/prettier, asks to replace all single quotes with double quotes · removing 'prettier/prettier': 'error' from .eslintrc.js makes all these quote errors go away. But I'm afraid I may be throwing the baby out with the bathwater. You may have noticed that ESLint's own "quotes" rule was overridden to "single", so ESLint too should not want quotes to be double.
Author drorp24
GitHub
github.com › prettier › prettier-vscode › issues › 345
Single Quote isn't applied on save or format document/selection · Issue #345 · prettier/prettier-vscode
January 22, 2018 - The semi colon rule works fine on save or formatting document, but the single quote will not resolve. If I run prettier --write, it picks up the .prettierrc and correctly changes to single quotes. ...
Author akrueger
GitHub
github.com › prettier › prettier-vscode › issues › 1060
"singleQuote": true , but still it's not working, exchanges always to double qoutes · Issue #1060 · prettier/prettier-vscode
November 15, 2019 - prettier / prettier-vscode Public · There was an error while loading. Please reload this page. Notifications · You must be signed in to change notification settings · Fork 473 · Star 5.3k · New issueCopy link · New issueCopy link · Closed · Closed · "singleQuote": true , but still it's not working, exchanges always to double qoutes#1060 ·
Published Nov 15, 2019
JetBrains
youtrack.jetbrains.com › issue › WEB-50619 › Prettier-is-converting-vue-html-attributes-to-single-quotes-Only-want-JavaScript-strings-to-be-single-quote
Prettier is converting vue html attributes to single quotes. Only ...
October 4, 2022 - {{ (>_<) }} This version of your browser is not supported. Try upgrading to the latest stable version. Something went seriously wrong
Medium
medium.com › @nayan.vekariya014 › prettier-in-vs-code-how-to-avoid-quote-wars-and-keep-your-team-sane-d622de5c7f29
🔧 Prettier in VS Code: How to Avoid Quote Wars and Keep Your Team Sane | by Nayan Vekariya | Medium
July 18, 2025 - If there’s no Prettier config in your project, VS Code falls back to your global or extension settings. So if your global Prettier setup uses singleQuote: true, VS Code will replace "double quotes" with 'single quotes', even if the original project uses double quotes.
GitHub
github.com › prettier › prettier › issues › 2031
--single-quote not working consistently · Issue #2031 · prettier/prettier
June 7, 2017 - I have a really simple application that converts a numeral to roman. I'm using prettier to format the code, and the single-quote option it's not working consistently, it changes some exceptions message to single-quote and others to double-quote, I'll put screens from before and after formatting.
Author felipediogo