diff --git a/.github/ISSUE_TEMPLATE/bug_report.md b/.github/ISSUE_TEMPLATE/bug_report.md
index 2715609..7d9fcc2 100644
--- a/.github/ISSUE_TEMPLATE/bug_report.md
+++ b/.github/ISSUE_TEMPLATE/bug_report.md
@@ -17,7 +17,7 @@ A clear and concise description of what you expected to happen.
 Steps to reproduce the behavior:
 
 Please include:
-- A **minimal reproducible example** shared via the Prometheus Web playground: https://prometheus-lua.github.io/Prometheus/
+- A **minimal reproducible example** shared via the Prometheus Playground: https://prometheus-lua.github.io/Prometheus/
 - Your config (preset/custom config)
 - The produced output (or relevant excerpt/error)
 
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index cea7e9e..3d3ce86 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -17,7 +17,7 @@ When opening a bug report, include:
 - Clear bug description
 - Expected behavior
 - Steps to reproduce
-- A minimal reproducible example shared via the Prometheus Web playground: https://prometheus-lua.github.io/Prometheus/
+- A minimal reproducible example shared via the Prometheus Playground: https://prometheus-lua.github.io/Prometheus/
 - Config used (preset/custom config)
 - Produced output and relevant errors/logs
 - Environment details (OS, Lua/LuaJIT version)
diff --git a/README.md b/README.md
index 9228b6e..ad03dfa 100644
--- a/README.md
+++ b/README.md
@@ -9,7 +9,7 @@
 <br/>
 
 <a href="https://prometheus-lua.github.io/Prometheus/">
-  <img src="https://img.shields.io/badge/Prometheus%20Web-Try%20Out-0F766E?style=for-the-badge&logo=github&logoColor=white" alt="Open Prometheus Web UI" />
+  <img src="https://img.shields.io/badge/Prometheus%20Web-Try%20Out-0F766E?style=for-the-badge&logo=github&logoColor=white" alt="Open Prometheus Playground" />
 </a>
 <a href="https://github.com/prometheus-lua/Prometheus/actions/workflows/Test.yml">
   <img src="https://img.shields.io/github/actions/workflow/status/prometheus-lua/Prometheus/Test.yml?branch=master&style=for-the-badge&label=Tests" alt="Tests" />
@@ -50,7 +50,7 @@ Try the browser version first:
 
 
 <a href="https://prometheus-lua.github.io/Prometheus/">
-  <img src="https://img.shields.io/badge/Prometheus%20Web-Open-0F766E?style=for-the-badge&logo=github&logoColor=white" alt="Open Prometheus Web UI" />
+  <img src="https://img.shields.io/badge/Prometheus%20Web-Open-0F766E?style=for-the-badge&logo=github&logoColor=white" alt="Open Prometheus Playground" />
 </a>
 
 ### Install CLI (Linux/macOS)
diff --git a/doc/README.md b/doc/README.md
index 4668691..9e448eb 100644
--- a/doc/README.md
+++ b/doc/README.md
@@ -6,7 +6,7 @@ description: Prometheus is a Lua obfuscator written in pure Lua.
 
 Prometheus obfuscates Lua source code using AST transforms and a configurable pipeline.
 
-Use the [Prometheus Webapp](https://prometheus-lua.github.io/Prometheus/) to quickly try out settings and test small snippets. For larger scripts and advanced workflows, use the CLI (`prometheus-lua` or `cli.lua`).
+Use the [Prometheus Playground](https://prometheus-lua.github.io/Prometheus/) to quickly try out settings and test small snippets. For larger scripts and advanced workflows, use the CLI (`prometheus-lua` or `cli.lua`).
 
 This documentation covers:
 
diff --git a/doc/getting-started/quickstart-first-obfuscation.md b/doc/getting-started/quickstart-first-obfuscation.md
index 38b249d..56391cd 100644
--- a/doc/getting-started/quickstart-first-obfuscation.md
+++ b/doc/getting-started/quickstart-first-obfuscation.md
@@ -1,6 +1,6 @@
 # Quickstart: First Obfuscation
 
-You can quickly try Prometheus in the [Prometheus Webapp](https://prometheus-lua.github.io/Prometheus/). For large scripts or advanced use cases, prefer the CLI workflow below.
+You can quickly try Prometheus in the [Prometheus Playground](https://prometheus-lua.github.io/Prometheus/). For large scripts or advanced use cases, prefer the CLI workflow below.
 
 Create a simple Lua file:
 
diff --git a/web/index.html b/web/index.html
index 2381aad..f3358d8 100644
--- a/web/index.html
+++ b/web/index.html
@@ -3,7 +3,7 @@
   <head>
     <meta charset="UTF-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-    <title>Prometheus Web</title>
+    <title>Prometheus</title>
   </head>
   <body>
     <div id="root"></div>
diff --git a/web/src/App.tsx b/web/src/App.tsx
index f216e80..6b8510d 100644
--- a/web/src/App.tsx
+++ b/web/src/App.tsx
@@ -485,7 +485,7 @@ export default function App() {
                 <FileCode2 className="size-5" />
               </div>
               <div>
-                <h1 className="text-lg font-semibold leading-tight">Prometheus Web</h1>
+                <h1 className="text-lg font-semibold leading-tight">Prometheus Playground</h1>
                 <p className="text-xs text-muted-foreground">
                   In-browser Lua obfuscation powered by Prometheus by levno-710.
                 </p>
diff --git a/web/src/e2e/app.spec.ts b/web/src/e2e/app.spec.ts
index 6e85daf..32a757c 100644
--- a/web/src/e2e/app.spec.ts
+++ b/web/src/e2e/app.spec.ts
@@ -2,7 +2,7 @@ import { expect, test } from "@playwright/test"
 
 test("loads under the GitHub Pages base and obfuscates input", async ({ page }) => {
   await page.goto("/")
-  await expect(page.getByRole("heading", { name: "Prometheus Web" })).toBeVisible()
+  await expect(page.getByRole("heading", { name: "Prometheus Playground" })).toBeVisible()
 
   const input = page.getByLabel("Lua input").locator(".cm-content")
   await input.click()
@@ -22,7 +22,7 @@ test("loads under the GitHub Pages base and obfuscates input", async ({ page })
 
 test("runs input script and shows logs", async ({ page }) => {
   await page.goto("/")
-  await expect(page.getByRole("heading", { name: "Prometheus Web" })).toBeVisible()
+  await expect(page.getByRole("heading", { name: "Prometheus Playground" })).toBeVisible()
 
   const input = page.getByLabel("Lua input").locator(".cm-content")
   await input.click()
@@ -37,7 +37,7 @@ test("runs input script and shows logs", async ({ page }) => {
 test("share link roundtrip keeps the same obfuscated output", async ({ browser, page, context }) => {
   await context.grantPermissions(["clipboard-read", "clipboard-write"])
   await page.goto("/")
-  await expect(page.getByRole("heading", { name: "Prometheus Web" })).toBeVisible()
+  await expect(page.getByRole("heading", { name: "Prometheus Playground" })).toBeVisible()
 
   const input = page.getByLabel("Lua input").locator(".cm-content")
   await input.click()
@@ -66,7 +66,7 @@ test("share link roundtrip keeps the same obfuscated output", async ({ browser,
 test("share link can be created after obfuscation fails", async ({ browser, page, context }) => {
   await context.grantPermissions(["clipboard-read", "clipboard-write"])
   await page.goto("/")
-  await expect(page.getByRole("heading", { name: "Prometheus Web" })).toBeVisible()
+  await expect(page.getByRole("heading", { name: "Prometheus Playground" })).toBeVisible()
 
   const input = page.getByLabel("Lua input").locator(".cm-content")
   await input.click()