diff --git a/src/config_editorconfig.ts b/src/config_editorconfig.ts
index aee3ccb..a8815a7 100644
--- a/src/config_editorconfig.ts
+++ b/src/config_editorconfig.ts
@@ -6,14 +6,15 @@ import { fastJoinedPath, findLastIndex, isUndefined, memoize, noop, zipObjectUnl
 import type { Config, ConfigWithOverrides } from "tiny-editorconfig";
 import type { FormatOptions, PromiseMaybe } from "./types.js";
 
-const getEditorConfig = memoize((folderPath: string, filesNames: string[]): PromiseMaybe<ConfigWithOverrides | undefined> => {
+const getEditorConfigImpl = (folderPath: string, filesNames: string[]): PromiseMaybe<ConfigWithOverrides | undefined> => {
   for (let i = 0, l = filesNames.length; i < l; i++) {
     const fileName = filesNames[i];
     const filePath = fastJoinedPath(folderPath, fileName);
     if (!Known.hasFilePath(filePath)) continue;
     return fs.readFile(filePath, "utf8").then(EditorConfig.parse).catch(noop);
   }
-});
+};
+const getEditorConfig: typeof getEditorConfigImpl = memoize(getEditorConfigImpl);
 
 const getEditorConfigsMap = async (foldersPaths: string[], filesNames: string[]): Promise<Partial<Record<string, ConfigWithOverrides>>> => {
   const configs = await Promise.all(foldersPaths.map((folderPath) => getEditorConfig(folderPath, filesNames)));
@@ -21,14 +22,15 @@ const getEditorConfigsMap = async (foldersPaths: string[], filesNames: string[])
   return map;
 };
 
-const getEditorConfigsUp = memoize(async (folderPath: string, filesNames: string[]): Promise<ConfigWithOverrides[]> => {
+const getEditorConfigsUpImpl = async (folderPath: string, filesNames: string[]): Promise<ConfigWithOverrides[]> => {
   const config = await getEditorConfig(folderPath, filesNames);
   const folderPathUp = path.dirname(folderPath);
   const configsUp = folderPath !== folderPathUp ? await getEditorConfigsUp(folderPathUp, filesNames) : [];
   const configs = config ? [...configsUp, config] : configsUp;
   const lastRootIndex = findLastIndex(configs, (config) => config.root);
   return lastRootIndex > 0 ? configs.slice(lastRootIndex) : configs;
-});
+};
+const getEditorConfigsUp: typeof getEditorConfigsUpImpl = memoize(getEditorConfigsUpImpl);
 
 const getEditorConfigResolved = async (filePath: string, filesNames: string[]): Promise<Config> => {
   const folderPath = path.dirname(filePath);
diff --git a/src/config_ignore.ts b/src/config_ignore.ts
index 6bc759d..f0504ea 100644
--- a/src/config_ignore.ts
+++ b/src/config_ignore.ts
@@ -11,12 +11,13 @@ const getIgnoreContent = (folderPath: string, fileName: string): PromiseMaybe<st
   return fs.readFile(filePath, "utf8").catch(noop);
 };
 
-const getIgnoresContent = memoize(async (folderPath: string, filesNames: string[]): Promise<string[] | undefined> => {
+const getIgnoresContentImpl = async (folderPath: string, filesNames: string[]): Promise<string[] | undefined> => {
   const contentsRaw = await Promise.all(filesNames.map((fileName) => getIgnoreContent(folderPath, fileName)));
   const contents = contentsRaw.filter(isString);
   if (!contents.length) return;
   return contents;
-});
+};
+const getIgnoresContent: typeof getIgnoresContentImpl = memoize(getIgnoresContentImpl);
 
 const getIgnoresContentMap = async (foldersPaths: string[], filesNames: string[]): Promise<Partial<Record<string, string[]>>> => {
   const contents = await Promise.all(foldersPaths.map((folderPath) => getIgnoresContent(folderPath, filesNames)));
@@ -39,14 +40,15 @@ const getIgnoreBys = (foldersPaths: string[], filesContents: string[][]): Ignore
   return ignore;
 };
 
-const getIgnores = memoize(async (folderPath: string, filesNames: string[]): Promise<Ignore | undefined> => {
+const getIgnoresImpl = async (folderPath: string, filesNames: string[]): Promise<Ignore | undefined> => {
   const contents = await getIgnoresContent(folderPath, filesNames);
   if (!contents?.length) return;
   const ignore = getIgnoreBy(folderPath, contents);
   return ignore;
-});
+};
+const getIgnores: typeof getIgnoresImpl = memoize(getIgnoresImpl);
 
-const getIgnoresUp = memoize(async (folderPath: string, filesNames: string[]): Promise<Ignore | undefined> => {
+const getIgnoresUpImpl = async (folderPath: string, filesNames: string[]): Promise<Ignore | undefined> => {
   const ignore = await getIgnores(folderPath, filesNames);
   const folderPathUp = path.dirname(folderPath);
   const ignoreUp = folderPath !== folderPathUp ? await getIgnoresUp(folderPathUp, filesNames) : undefined;
@@ -54,7 +56,8 @@ const getIgnoresUp = memoize(async (folderPath: string, filesNames: string[]): P
   if (!ignores.length) return;
   const ignoreAll = someOf(ignores);
   return ignoreAll;
-});
+};
+const getIgnoresUp: typeof getIgnoresUpImpl = memoize(getIgnoresUpImpl);
 
 const getIgnoreResolved = async (filePath: string, filesNames: string[]): Promise<boolean> => {
   const folderPath = path.dirname(filePath);
diff --git a/src/config_prettier.ts b/src/config_prettier.ts
index 22ebabb..c82ab2c 100644
--- a/src/config_prettier.ts
+++ b/src/config_prettier.ts
@@ -112,13 +112,14 @@ const getPrettierConfigsMap = async (foldersPaths: string[], filesNames: string[
   return map;
 };
 
-const getPrettierConfigsUp = memoize(async (folderPath: string, filesNames: string[]): Promise<PrettierConfigWithOverrides[]> => {
+const getPrettierConfigsUpImpl = async (folderPath: string, filesNames: string[]): Promise<PrettierConfigWithOverrides[]> => {
   const config = (await getPrettierConfigs(folderPath, filesNames))?.[0];
   const folderPathUp = path.dirname(folderPath);
   const configsUp = folderPath !== folderPathUp ? await getPrettierConfigsUp(folderPathUp, filesNames) : [];
   const configs = config ? [...configsUp, config] : configsUp;
   return configs;
-});
+};
+const getPrettierConfigsUp: typeof getPrettierConfigsUpImpl = memoize(getPrettierConfigsUpImpl);
 
 const getPrettierConfigResolved = async (filePath: string, filesNames: string[]): Promise<PrettierConfig> => {
   const folderPath = path.dirname(filePath);
diff --git a/src/index.ts b/src/index.ts
index d9b9158..4d0ad2e 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -15,6 +15,7 @@ import {
   castArray,
   getCacheRootPath,
   getExpandedFoldersPaths,
+  getFolderChildrenPaths,
   getFoldersChildrenPaths,
   getPluginsVersions,
   getProjectPath,
@@ -43,6 +44,36 @@ async function run(options: Options, pluginsDefaultOptions: PluginsOptions, plug
   }
 }
 
+async function getConfigNames(
+  options: Options,
+  overrides?: Partial<Pick<Options, "ignore" | "config" | "editorConfig">>,
+): Promise<{
+  prettierConfigNames: string[];
+  editorConfigNames: string[];
+  ignoreNames: string[];
+  prettierManualConfig?: Record<string, unknown>;
+  prettierManualFilesPaths: string[];
+}> {
+  const useEditorConfig = overrides?.editorConfig ?? options.editorConfig;
+  const useIgnore = overrides?.ignore ?? options.ignore;
+  const useConfig = overrides?.config ?? options.config;
+  const editorConfigNames = useEditorConfig ? [".editorconfig"].filter(Known.hasFileName) : [];
+  const ignoreNames = useIgnore ? [".gitignore", ".prettierignore"].filter(Known.hasFileName) : [];
+  const prettierConfigNames = useConfig ? without(Object.keys(File2Loader), ["default"]).filter(Known.hasFileName) : [];
+  const prettierManualFilesNames = options.configPath || [];
+  const prettierManualFilesPaths = prettierManualFilesNames.map((fileName) => path.resolve(fileName));
+  const prettierManualConfigs = await Promise.all(prettierManualFilesPaths.map(Loaders.auto));
+  const prettierManualConfig = prettierManualConfigs.length ? Object.assign({}, ...prettierManualConfigs) : undefined;
+
+  return {
+    prettierConfigNames,
+    editorConfigNames,
+    ignoreNames,
+    prettierManualConfig,
+    prettierManualFilesPaths,
+  };
+}
+
 async function runStdin(options: Options, pluginsDefaultOptions: PluginsOptions, pluginsCustomOptions: PluginsOptions): Promise<void> {
   const stderr = new Logger(options.logLevel, "stderr");
   const stdout = new Logger(options.logLevel, "stdout");
@@ -51,8 +82,34 @@ async function runStdin(options: Options, pluginsDefaultOptions: PluginsOptions,
   const fileName = options.stdinFilepath || "stdin";
   const fileContent = (await getStdin()) || "";
 
+  if (options.stdinFilepath) {
+    const rootPath = process.cwd();
+    const projectPath = getProjectPath(rootPath);
+    const fileFolderPath = path.dirname(path.resolve(options.stdinFilepath));
+    const [foldersPaths, foldersExtraPaths] = getExpandedFoldersPaths([fileFolderPath], projectPath);
+    const foldersToScan = [rootPath, ...foldersPaths, ...foldersExtraPaths];
+    const filesPaths = (await Promise.all(foldersToScan.map((folderPath) => getFolderChildrenPaths(folderPath).catch(() => [])))).flat();
+    const filesNames = filesPaths.map((filePath) => path.basename(filePath));
+    Known.addFilesPaths(filesPaths);
+    Known.addFilesNames(filesNames);
+  }
+
+  const { prettierConfigNames, editorConfigNames, prettierManualConfig } = await getConfigNames(options, { ignore: false });
+
+  const getFormatOptions = async (): Promise<FormatOptions> => {
+    if (!options.stdinFilepath) {
+      return options.formatOptions;
+    }
+
+    const filePath = path.resolve(options.stdinFilepath);
+    const editorConfig = options.editorConfig ? getEditorConfigFormatOptions(await getEditorConfigResolved(filePath, editorConfigNames)) : {};
+    const prettierConfig = prettierManualConfig || (options.config ? await getPrettierConfigResolved(filePath, prettierConfigNames) : {});
+    const formatOptions = { ...editorConfig, ...prettierConfig, ...options.formatOptions };
+    return formatOptions;
+  };
+
   try {
-    const formatted = await prettier.format(fileName, fileContent, options.formatOptions, options.contextOptions, pluginsDefaultOptions, pluginsCustomOptions);
+    const formatted = await prettier.format(fileName, fileContent, getFormatOptions, options.contextOptions, pluginsDefaultOptions, pluginsCustomOptions);
     if (options.check || options.list) {
       if (formatted !== fileContent) {
         stdout.warn("(stdin)");
@@ -79,7 +136,7 @@ async function runGlobs(options: Options, pluginsDefaultOptions: PluginsOptions,
   const [filesPaths, filesNames, filesNamesToPaths, filesExplicitPaths, filesFoundPaths, foldersFoundPaths] = await getTargetsPaths(rootPath, options.globs, options.withNodeModules); // prettier-ignore
   const filesExplicitPathsSet = new Set(filesExplicitPaths);
   const filesPathsTargets = filesPaths.filter(negate(isBinaryPath)).sort();
-  const [foldersPathsTargets, foldersExtraPaths] = getExpandedFoldersPaths(foldersFoundPaths, projectPath);
+  const [, foldersExtraPaths] = getExpandedFoldersPaths(foldersFoundPaths, projectPath);
   const filesExtraPaths = await getFoldersChildrenPaths([rootPath, ...foldersExtraPaths]);
   const filesExtraNames = filesExtraPaths.map((filePath) => path.basename(filePath));
 
@@ -95,9 +152,7 @@ async function runGlobs(options: Options, pluginsDefaultOptions: PluginsOptions,
   const pluginsVersions = getPluginsVersions(pluginsNames);
   const pluginsVersionsMissing = pluginsVersions.filter(isNull);
 
-  const editorConfigNames = options.editorConfig ? [".editorconfig"].filter(Known.hasFileName) : [];
-  const ignoreNames = options.ignore ? [".gitignore", ".prettierignore"].filter(Known.hasFileName) : [];
-  const prettierConfigNames = options.config ? without(Object.keys(File2Loader), ["default"]).filter(Known.hasFileName) : [];
+  const { prettierConfigNames, editorConfigNames, ignoreNames, prettierManualConfig, prettierManualFilesPaths } = await getConfigNames(options);
 
   const fileNames2parentPaths = (names: string[]) => names.flatMap((name) => filesNamesToPaths[name]?.map(path.dirname) || []);
   const editorConfigPaths = uniq([...fileNames2parentPaths(editorConfigNames), rootPath, ...foldersExtraPaths]);
@@ -114,11 +169,7 @@ async function runGlobs(options: Options, pluginsDefaultOptions: PluginsOptions,
   const ignoreManualFoldersPaths = ignoreManualFilesPaths.map(path.dirname);
   const ignoreManual = getIgnoreBys(ignoreManualFoldersPaths, ignoreManualFilesContents.map(castArray));
 
-  const prettierManualFilesNames = options.configPath || [];
-  const prettierManualFilesPaths = prettierManualFilesNames.map((fileName) => path.resolve(fileName));
   const prettierManualFilesContents = await Promise.all(prettierManualFilesPaths.map((filePath) => fs.readFile(filePath, "utf8")));
-  const prettierManualConfigs = await Promise.all(prettierManualFilesPaths.map(Loaders.auto));
-  const prettierManualConfig = prettierManualConfigs.length ? Object.assign({}, ...prettierManualConfigs) : undefined;
 
   const cliContextConfig = options.contextOptions;
   const cliFormatConfig = options.formatOptions;
diff --git a/src/utils.ts b/src/utils.ts
index a71f4e7..65fcd63 100644
--- a/src/utils.ts
+++ b/src/utils.ts
@@ -131,11 +131,12 @@ function identity<T>(value: T): T {
   return value;
 }
 
-const getPlugin = memoize((name: string): Promise<PrettierPlugin> => {
+const getPluginImpl = (name: string): Promise<PrettierPlugin> => {
   const pluginPath = getPluginPath(name);
   const plugin = getModule<PrettierPlugin>(pluginPath);
   return plugin;
-});
+};
+const getPlugin: typeof getPluginImpl = memoize(getPluginImpl);
 
 async function getPluginOrExit(name: string): Promise<PrettierPlugin> {
   try {
diff --git a/test/__fixtures__/stdin-filepath-config/.prettierrc.json b/test/__fixtures__/stdin-filepath-config/.prettierrc.json
new file mode 100644
index 0000000..544138b
--- /dev/null
+++ b/test/__fixtures__/stdin-filepath-config/.prettierrc.json
@@ -0,0 +1,3 @@
+{
+  "singleQuote": true
+}
diff --git a/test/__tests__/stdin-filepath-config.js b/test/__tests__/stdin-filepath-config.js
new file mode 100644
index 0000000..8f8530f
--- /dev/null
+++ b/test/__tests__/stdin-filepath-config.js
@@ -0,0 +1,29 @@
+import { runCli } from "../utils";
+
+describe("--stdin-filepath discovers config on disk", () => {
+  runCli("stdin-filepath-config", [
+    "--stdin-filepath",
+    "example.js",
+  ], {
+    input: `const x = "foo"`,
+  }).test({
+    status: 0,
+    stdout: `const x = 'foo';`,
+    stderr: "",
+    write: [],
+  });
+});
+
+describe("--stdin-filepath with a non-existent path still discovers ancestor config", () => {
+  runCli("stdin-filepath-config", [
+    "--stdin-filepath",
+    "./non-existent-dir/non-existent-file.js",
+  ], {
+    input: `const x = "foo"`,
+  }).test({
+    status: 0,
+    stdout: `const x = 'foo';`,
+    stderr: "",
+    write: [],
+  });
+});