diff --git a/DOWNLOAD_STATS.md b/DOWNLOAD_STATS.md
index b439e33..1535a14 100644
--- a/DOWNLOAD_STATS.md
+++ b/DOWNLOAD_STATS.md
@@ -55,6 +55,7 @@
 | `@nolyfill/is-weakref` | [![npm](https://img.shields.io/npm/dt/@nolyfill/is-weakref.svg?style=flat-square&logo=npm&logoColor=white&label=total%20downloads&color=333)](https://www.npmjs.com/package/@nolyfill/is-weakref) |
 | `@nolyfill/isarray` | [![npm](https://img.shields.io/npm/dt/@nolyfill/isarray.svg?style=flat-square&logo=npm&logoColor=white&label=total%20downloads&color=333)](https://www.npmjs.com/package/@nolyfill/isarray) |
 | `@nolyfill/iterator.prototype` | [![npm](https://img.shields.io/npm/dt/@nolyfill/iterator.prototype.svg?style=flat-square&logo=npm&logoColor=white&label=total%20downloads&color=333)](https://www.npmjs.com/package/@nolyfill/iterator.prototype) |
+| `@nolyfill/json-stable-stringify` | [![npm](https://img.shields.io/npm/dt/@nolyfill/json-stable-stringify.svg?style=flat-square&logo=npm&logoColor=white&label=total%20downloads&color=333)](https://www.npmjs.com/package/@nolyfill/json-stable-stringify) |
 | `@nolyfill/jsonify` | [![npm](https://img.shields.io/npm/dt/@nolyfill/jsonify.svg?style=flat-square&logo=npm&logoColor=white&label=total%20downloads&color=333)](https://www.npmjs.com/package/@nolyfill/jsonify) |
 | `@nolyfill/object-is` | [![npm](https://img.shields.io/npm/dt/@nolyfill/object-is.svg?style=flat-square&logo=npm&logoColor=white&label=total%20downloads&color=333)](https://www.npmjs.com/package/@nolyfill/object-is) |
 | `@nolyfill/object-keys` | [![npm](https://img.shields.io/npm/dt/@nolyfill/object-keys.svg?style=flat-square&logo=npm&logoColor=white&label=total%20downloads&color=333)](https://www.npmjs.com/package/@nolyfill/object-keys) |
diff --git a/create.ts b/create.ts
index 27082a4..d4bd155 100644
--- a/create.ts
+++ b/create.ts
@@ -131,7 +131,8 @@ const singleFilePackagesList = [
   ['hasown'],
   ['jsonify'],
   ['isarray'],
-  ['is-typed-array', { '@nolyfill/which-typed-array': 'workspace:*' }]
+  ['is-typed-array', { '@nolyfill/which-typed-array': 'workspace:*' }],
+  ['json-stable-stringify']
 ] as const;
 
 const manualPackagesList = [
diff --git a/package.json b/package.json
index 97914fd..2a03c47 100644
--- a/package.json
+++ b/package.json
@@ -92,6 +92,7 @@
       "is-weakref": "workspace:@nolyfill/is-weakref@*",
       "isarray": "workspace:@nolyfill/isarray@*",
       "iterator.prototype": "workspace:@nolyfill/iterator.prototype@*",
+      "json-stable-stringify": "workspace:@nolyfill/json-stable-stringify@*",
       "jsonify": "workspace:@nolyfill/jsonify@*",
       "object-is": "workspace:@nolyfill/object-is@*",
       "object-keys": "workspace:@nolyfill/object-keys@*",
@@ -197,6 +198,7 @@
     "is-weakref": "npm:@nolyfill/is-weakref@latest",
     "isarray": "npm:@nolyfill/isarray@latest",
     "iterator.prototype": "npm:@nolyfill/iterator.prototype@latest",
+    "json-stable-stringify": "npm:@nolyfill/json-stable-stringify@latest",
     "jsonify": "npm:@nolyfill/jsonify@latest",
     "object-is": "npm:@nolyfill/object-is@latest",
     "object-keys": "npm:@nolyfill/object-keys@latest",
diff --git a/packages/data/single-file/src/json-stable-stringify.ts b/packages/data/single-file/src/json-stable-stringify.ts
new file mode 100644
index 0000000..6b3143d
--- /dev/null
+++ b/packages/data/single-file/src/json-stable-stringify.ts
@@ -0,0 +1,125 @@
+'use strict';
+
+interface Element {
+  key: string,
+  value: any
+}
+
+export type Replacer = (key: string, value: any) => any;
+
+interface ComparatorOption {
+  get?: (key: any) => any
+}
+export type Comparator = (a: Element, b: Element, opt?: ComparatorOption) => number;
+
+const defaultReplacer: Replacer = function (_key: string, value: any) { return value; };
+
+export interface Options {
+  /**
+     * Custom comparator for key
+     */
+  cmp?: Comparator,
+
+  /**
+     * Indent the output for pretty-printing.
+     *
+     * Supported is either a string or a number of spaces.
+     */
+  space?: string | number,
+
+  /**
+     * Option to replace values to simpler values
+     */
+  replacer?: Replacer,
+
+  /**
+     * true to allow cycles, by marking the entries as __cycle__.
+     */
+  cycles?: boolean
+}
+
+export default function stableStringify(obj: any, opts?: Comparator | Options): string {
+  const space = opts && 'space' in opts && opts.space
+    ? (typeof opts.space === 'number'
+      ? ' '.repeat(opts.space)
+      : opts.space)
+    : '';
+
+  const cycles = opts && 'cycles' in opts && typeof opts.cycles === 'boolean'
+    ? opts.cycles
+    : false;
+
+  const replacer = opts && 'replacer' in opts && opts.replacer
+    ? opts.replacer
+    : defaultReplacer;
+
+  const cmpOpt = typeof opts === 'function' ? opts : opts?.cmp;
+
+  const cmp = cmpOpt
+    ? ((node: any) => {
+      const get = cmpOpt.length > 2 && function get(k: any) { return node[k]; };
+      const thirdArg: ComparatorOption | undefined = get ? { get } : undefined;
+
+      return (a: string, b: string) => {
+        const aobj: Element = { key: a, value: node[a] };
+        const bobj: Element = { key: b, value: node[b] };
+        return cmpOpt(aobj, bobj, thirdArg);
+      };
+    })
+    : undefined;
+
+  // Cycle
+  const seen = new Set<any>();
+
+  function stringify(parent: any, key: string, node: any, level: number): string {
+    const indent = space ? `\n${space.repeat(level)}` : '';
+    const colonSeparator = space ? ': ' : ':';
+
+    if (node?.toJSON && typeof node.toJSON === 'function') {
+      node = node.toJSON();
+    }
+
+    node = replacer.call(parent, key, node);
+
+    if (node === undefined) {
+      // @ts-expect-error -- fuck undefined
+      return;
+    }
+    if (typeof node !== 'object' || node === null) {
+      return JSON.stringify(node);
+    }
+    if (Array.isArray(node)) {
+      const out = [];
+      for (let i = 0; i < node.length; i++) {
+        // @ts-expect-error -- fuck js
+        const item = stringify(node, i, node[i], level + 1) || JSON.stringify(null);
+        out.push(indent + space + item);
+      }
+      return `[${out.join(',')}${indent}]`;
+    }
+
+    if (seen.has(node)) {
+      if (cycles) { return JSON.stringify('__cycle__'); }
+      throw new TypeError('Converting circular structure to JSON');
+    } else { seen.add(node); }
+
+    const keys = Object.keys(node).sort(cmp?.(node));
+    const out = [];
+    for (let i = 0; i < keys.length; i++) {
+      const key = keys[i];
+      const value = stringify(node, key, node[key], level + 1);
+
+      if (!value) { continue; }
+
+      const keyValue = JSON.stringify(key)
+        + colonSeparator
+        + value;
+
+      out.push(indent + space + keyValue);
+    }
+    seen.delete(node);
+    return `{${out.join(',')}${indent}}`;
+  }
+
+  return stringify({ '': obj }, '', obj, 0);
+}
diff --git a/packages/generated/json-stable-stringify/index.js b/packages/generated/json-stable-stringify/index.js
new file mode 100644
index 0000000..d7bdb4e
--- /dev/null
+++ b/packages/generated/json-stable-stringify/index.js
@@ -0,0 +1,3 @@
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),Object.defineProperty(exports,"default",{enumerable:!0,get:function(){return t}});const e=function(e,t){return t};function t(t,r){let n=r&&"space"in r&&r.space?"number"==typeof r.space?" ".repeat(r.space):r.space:"",l=!!r&&"cycles"in r&&"boolean"==typeof r.cycles&&r.cycles,o=r&&"replacer"in r&&r.replacer?r.replacer:e,i="function"==typeof r?r:null==r?void 0:r.cmp,u=i?e=>{let t=i.length>2&&function(t){return e[t]},r=t?{get:t}:void 0;return(t,n)=>i({key:t,value:e[t]},{key:n,value:e[n]},r)}:void 0,c=new Set;return function e(t,r,i,f){let s=n?`
+${n.repeat(f)}`:"",p=n?": ":":";if((null==i?void 0:i.toJSON)&&"function"==typeof i.toJSON&&(i=i.toJSON()),void 0===(i=o.call(t,r,i)))return;if("object"!=typeof i||null===i)return JSON.stringify(i);if(Array.isArray(i)){let t=[];for(let r=0;r<i.length;r++){let l=e(i,r,i[r],f+1)||JSON.stringify(null);t.push(s+n+l)}return`[${t.join(",")}${s}]`}if(c.has(i)){if(l)return JSON.stringify("__cycle__");throw TypeError("Converting circular structure to JSON")}c.add(i);let a=Object.keys(i).sort(null==u?void 0:u(i)),y=[];for(let t=0;t<a.length;t++){let r=a[t],l=e(i,r,i[r],f+1);if(!l)continue;let o=JSON.stringify(r)+p+l;y.push(s+n+o)}return c.delete(i),`{${y.join(",")}${s}}`}({"":t},"",t,0)}
+((typeof exports.default === 'object' && exports.default !== null) || typeof exports.default === 'function') && (Object.assign(exports.default,exports), module.exports = exports.default);
diff --git a/packages/generated/json-stable-stringify/package.json b/packages/generated/json-stable-stringify/package.json
new file mode 100644
index 0000000..b5edac2
--- /dev/null
+++ b/packages/generated/json-stable-stringify/package.json
@@ -0,0 +1,19 @@
+{
+  "name": "@nolyfill/json-stable-stringify",
+  "version": "1.0.30",
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/SukkaW/nolyfill",
+    "directory": "packages/generated/json-stable-stringify"
+  },
+  "main": "./index.js",
+  "license": "MIT",
+  "files": [
+    "*.js"
+  ],
+  "scripts": {},
+  "dependencies": {},
+  "engines": {
+    "node": ">=12.4.0"
+  }
+}
diff --git a/packages/tools/cli/src/all-packages.ts b/packages/tools/cli/src/all-packages.ts
index c74a79a..299e52e 100644
--- a/packages/tools/cli/src/all-packages.ts
+++ b/packages/tools/cli/src/all-packages.ts
@@ -54,6 +54,7 @@ export const allPackages = [
   "is-weakref",
   "isarray",
   "iterator.prototype",
+  "json-stable-stringify",
   "jsonify",
   "object-is",
   "object-keys",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index ff5f12e..e8096a4 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -57,6 +57,7 @@ overrides:
   is-weakref: workspace:@nolyfill/is-weakref@*
   isarray: workspace:@nolyfill/isarray@*
   iterator.prototype: workspace:@nolyfill/iterator.prototype@*
+  json-stable-stringify: workspace:@nolyfill/json-stable-stringify@*
   jsonify: workspace:@nolyfill/jsonify@*
   object-is: workspace:@nolyfill/object-is@*
   object-keys: workspace:@nolyfill/object-keys@*
@@ -485,6 +486,8 @@ importers:
 
   packages/generated/iterator.prototype: {}
 
+  packages/generated/json-stable-stringify: {}
+
   packages/generated/jsonify: {}
 
   packages/generated/object-is: