Every fix, feature, and improvement — in chronological order. We ship fast and document everything.
A new Mobile App panel in the sidebar lets visitors install your deployed site on their phone like a real app, with its own icon, name, and no browser bar. Flip on "Make my site installable", then set the app name, short name, theme and background colors, and window style (App, Fullscreen, or Minimal). Pick any image from your project as the app icon (512 px or larger looks sharpest), or skip it and get a generated letter icon. A phone preview with a launch screen shows how it will look before anyone installs it. The app files are added to your live site automatically on every deploy, and a network-first service worker keeps your site usable offline without ever hiding a fresh deploy behind an old cache. On Android (Chrome), visitors tap the menu, then "Install app". On iPhone (Safari), they tap Share, then "Add to Home Screen". This works for frontend (static and single-page) deployments; backend and fullstack projects aren't covered yet, and if your site already ships its own web manifest or service worker, Cloudpen leaves it untouched. This makes your site installable, but it isn't an app store submission.
Flutter projects can now be run in the new Simulator, right inside the editor's phone frame, or on your own device's browser via a link or QR code. Builds run in a sandboxed environment, so there's no local Flutter SDK setup needed. This is a preview for active development, not a permanent hosting slot or an app store submission: an inactive session is taken down automatically after a few days, and opening the Simulator again brings it right back with your latest code. React Native (Expo) device preview is coming soon. Available on Pro, Team, and Enterprise, plus AppSumo Tier 2, 3, and 4.
A new Extension tab in the bottom panel loads your Manifest V3 extension into a real, sandboxed headless Chromium instance — no local Chrome install or DevTools setup needed. Get a unified console that merges output from the service worker, extension pages, and content scripts into one labeled feed, on-demand screenshots of your popup and options page, and a "Simulate on Page" view that composites your popup into the corner of a real test page, exactly where Chrome anchors it. Manifest problems (missing files, MV2 keys, malformed JSON) are caught before a browser ever launches. Connected AI clients can also read console errors and trigger a reload via two new MCP tools, closing the edit-test-fix loop end to end. Rolling out gradually while we finish hardening for full availability — check your Billing page for plan access.
Web3 deploys previously required two credentials: your own RPC provider URL (Alchemy, Infura) and a wallet private key. Cloudpen now maintains its own shared Alchemy RPC connection for Sepolia, used automatically as a fallback whenever a project hasn't set its own SEPOLIA_RPC_URL — so a first deploy only needs your wallet key. Your private key is always yours and is never shared; only the RPC connection (read/relay access, no fund control) is pooled. Shared-pool usage is tracked against its own daily cap, separate from your general Web3 deploy limit. Available on Pro, Team, and Enterprise, plus AppSumo Tier 2 and 3 — check your Billing page for your exact allowance.
A new Arcade tab, available on every plan, no accounts or scores required. Play Night Run (a neon 3D racer built with Three.js), Neon Siege (a twin-stick shooter with sector bosses), a from-scratch Chess engine with adjustable AI difficulty, hints, and save/load, plus Typing Sprint, Word Rush, Speed Math, etc. Find it via the "Take a Break" button in the header. We'll keep maintaining, improving, and updating the Arcade regularly, with new games added over time.
Deploy a real, persistent PHP/Laravel backend straight from the editor — not a static preview — running continuously at yourproject.cloudpen.dev in its own isolated container. Pair it with a hosted MySQL database provisioned per project, complete with one-click phpMyAdmin access. Database credentials are written into your app's .env automatically when both are deployed together. Available on Pro, Team, and Enterprise, plus AppSumo Tier 2 and 3 — check your Billing or Add-ons page for your exact deployment/database allowance.
Reloading a nested route on a deployed React, Vue, Next.js, or Angular project (e.g. yourapp.cloudpen.dev/app/settings) no longer shows a 404 — it now correctly re-renders through your app's router, matching how Vercel and Netlify handle client-side routing. Static/plain HTML deployments are unaffected and continue to 404 correctly on invalid paths. Every project's own custom 404 page — not Cloudpen's — now shows for real broken routes within a deployed app.
Cloudpen can now act as an MCP server, so external tools connect to your projects the same way Cloudpen connects out to yours. Point Claude Desktop, Claude Code, Cursor, or any MCP-compatible client at a project to read files, check deployment status, and see git history, right from your existing workflow. Read access is on by default; writes are a separate opt-in that require confirmation from the AI client before anything is saved. Every token is scoped to exactly one project, write-scoped tokens expire within 90 days no matter what, and creating a write-scoped token always requires a fresh email confirmation code. Find it under the MCP panel in the sidebar of any project, under the "MCP Server" tab. Available on Pro, Team, and Enterprise, plus AppSumo Tier 2 and 3.
Cloudpen can now connect to external MCP servers like Supabase directly from the editor. Quill uses the live context from your connected tools when it responds — no more pasting schema or config into chat by hand.
Quill can now read images — screenshots, error dialogs, design mockups — when you bring your own AI key. Drop an image into chat and Quill reasons over it alongside your code.
Searching for a specific model when you bring your own key now pulls live from the OpenRouter catalog, with instant filtering instead of a fixed dropdown list.
Three new starter templates join the project creation flow. Fork one and you're running in seconds, same as every other template on Cloudpen.
Push or pull your project directly to your own server over SFTP — a VPS, cPanel, DirectAdmin, or any standard SFTP host. Transfers run in a background queue with live progress updates, encrypted credentials at rest, and safety exclusions for sensitive folders.
A REST tester built directly into the editor. Send requests, inspect responses (including rendered HTML previews), save requests to a collection, and pull up your history — all from the sidebar, without leaving your project.
Set your env vars once, just like on Vercel, and they're automatically available in your terminal, when you hit Run, and in your deployed build. No more juggling .env files by hand or copy-pasting secrets into the sandbox.
A full Git workflow built into the editor sidebar, running the real Git CLI under the hood. Stage, commit, push, pull, switch branches, review inline diffs, and publish a new project straight to a new or existing GitHub repo — no terminal required.
Preview your running app side-by-side with your code. Includes a DevTools panel, JS REPL, context menu, and hot reload on every save — no tab switching required.
50% off Pro for verified students and bootcamp learners. Apply at cloudpen.dev/students — approval within 24 hours.
Quill now reads your active file and open project structure before responding. Select any block of code to explain, debug, or refactor it without copy-pasting into a separate chat.
The in-editor panel now ships with tabbed DevTools — Network, Console, and Elements — alongside the JS REPL and hot reload controls.
Terminal sessions now reconnect automatically when a browser tab is restored from sleep instead of showing a stale or frozen shell.
The team is heads-down building. Follow along on X for early previews and announcements before they hit the changelog.
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