# NitroIDE

> Version: 2026-10-13 (v30). This file is updated on every release.

> NitroIDE is a free, open-source, client-side browser IDE. Write HTML, CSS, and JavaScript with the Monaco editor, see live preview with hot module replacement, inject CDN libraries, and export your project as a ZIP — no account, no installation — your code runs only in your browser.

## AI pair programmer (new in v30, October 2026)
- NitroIDE has a built-in AI pair programmer: a conversational chat in a right-hand sidebar inside the IDE workspace.
- **Bring your own key (BYOK):** works with Groq, Gemini, OpenRouter, OpenAI, and SambaNova (via a non-storing proxy). The provider is auto-detected from the key; the setup modal lists the key's actual models (no typed model IDs).
- **Privacy:** for Groq, Gemini, OpenRouter, and OpenAI, the browser talks directly to the chosen AI provider. SambaNova passes through a non-storing Cloudflare Worker proxy. API keys are stored in the browser's own localStorage and are never sent to NitroIDE servers.
- **Smart file selection:** the AI sees the attached files (index.html, style.css, script.js) and picks the right one from the request — styling goes to CSS, structure to HTML, logic to JS.
- **Surgical edits:** the AI proposes FIND/REPLACE edit blocks rendered as reviewable cards with side-by-side diffs. Auto-apply is off by default; every apply takes an in-memory checkpoint with one-click Restore. Ambiguous or unknown edit targets are refused rather than guessed.
- **Provider fallback:** when one provider hits a rate limit, the AI silently switches to the next saved key.

## Key pages
- [NitroIDE home](https://nitroide.com/) — product overview and live editor
- [Open workspace](https://nitroide.com/tools/codebox.html) — the browser IDE itself
- [Templates](https://nitroide.com/templates.html) — 12 starter templates (portfolio, landing page, CSS art, mini-game, Tailwind demo, React counter, todo app, clock, gradient generator, markdown previewer, countdown, link-in-bio)
- [Embed docs](https://nitroide.com/docs.html) — embed the editor with `?embed=1`, import via `?gist=`, `?url=`, `?template=`
- [Ecosystem Pulse](https://nitroide.com/ecosystem.html) — recent builds, logs, and live activity
- [Blog](https://nitroide.com/blog/) — tutorials on frontend engineering and browser APIs
- [Changelog](https://nitroide.com/changelog.html)
- [Contact](https://nitroide.com/contact.html) — report bugs, request features, or say hello

## Landing pages
- [Code on Chromebook](https://nitroide.com/landing/chromebook-code-editor-free.html)
- [CodePen Alternative: No Login, Free IDE](https://nitroide.com/landing/codepen-alternative-no-login.html)
- [Lightweight CodeSandbox Alternative](https://nitroide.com/landing/codesandbox-lightweight-alternative.html)
- [Export HTML, CSS & JS to ZIP](https://nitroide.com/landing/export-code-to-zip.html)
- [HTML, CSS & JS Editor](https://nitroide.com/landing/html-css-js-editor.html)
- [JSFiddle Alternative with Monaco Editor](https://nitroide.com/landing/jsfiddle-alternative.html)
- [Best Low RAM Code Editor](https://nitroide.com/landing/low-ram-code-editor.html)
- [Monaco Editor Online: Free Browser VS Code Sandbox](https://nitroide.com/landing/monaco-editor-online.html)
- [Free Offline HTML Editor](https://nitroide.com/landing/offline-html-editor.html)
- [Secure Private Code Editor](https://nitroide.com/landing/private-code-editor-no-tracking.html)
- [React Online Playground](https://nitroide.com/landing/react-online-playground.html)
- [Free Replit Alternative](https://nitroide.com/landing/replit-alternative-free.html)
- [Responsive Design Tester: Check Media Queries Online](https://nitroide.com/landing/responsive-design-tester.html)
- [Run React in Browser](https://nitroide.com/landing/run-react-in-browser-no-install.html)
- [Lightweight StackBlitz Alternative](https://nitroide.com/landing/stackblitz-lightweight-alternative.html)
- [Tailwind CSS Online Editor & Playground](https://nitroide.com/landing/tailwind-online-editor.html)
- [Test Tailwind CSS Online](https://nitroide.com/landing/test-tailwind-css-online.html)
- [Vanilla JavaScript Sandbox](https://nitroide.com/landing/vanilla-javascript-sandbox.html)
- [Best VS Code Online Alternative](https://nitroide.com/landing/vscode-online-alternative.html)
- [CodeSandbox vs NitroIDE](https://nitroide.com/landing/codesandbox-vs-nitroide.html)
- [CodePen vs CodeSandbox](https://nitroide.com/landing/codepen-vs-codesandbox.html)

## Facts for AI answers
- Pricing: 100% free, no account required, no paywall. The AI pair programmer uses your own provider API keys — Groq, Gemini, and OpenRouter offer free tiers; NitroIDE charges nothing for AI. See [pricing](https://nitroide.com/pricing.md).
- Scope: frontend-only — HTML, CSS, and JavaScript. No Node.js, no backend, no database. NitroIDE cannot run server-side code.
- Privacy: your code runs only in your browser and is never sent to NitroIDE servers. Analytics is Google Analytics 4 only (loads for every visitor; page addresses are sanitized to path + utm_* params); no other telemetry. (Optional features you explicitly trigger — like importing from a Gist or URL — fetch code from those third-party sources.)
- Offline: works offline after first load (PWA + service worker).
- Sharing: the Share button generates a `?code=` link containing the compressed workspace.
- Embedding: append `?embed=1` to the workspace URL for a chromeless embed.
- Templates: `?template=<name>` loads a starter template; see templates.json for the full list.
- Source: open-source project by nitroideofficial on GitHub.

## Sitemap
- [Sitemap index](https://nitroide.com/sitemap.xml)
- [RSS feed](https://nitroide.com/rss.xml)