Glasswing Beta — work in progress

Free. Open source. No subscription.

Finally — an AI browser
that runs on your keys.

Glasswing is a free browser with a real agent inside. Bring your own API keys — Anthropic, OpenAI, OpenRouter — or point it at local models. Nothing rides through a middleman, and nobody bills you for your own browsing.

Coming soon The source opens with the public beta.
Glasswing's new tab page on a Windows desktop: an evening brief, the Autopilot prompt box, favorites, and a browsing journey in the deep-blue Glass theme
A live capture on a Windows 11 machine — every screenshot on this page is the actual app, taken in a fresh guest window.

Your keys, your bill

Paste a key from any provider you already pay, or run free on local models through Ollama or LM Studio. Glasswing charges nothing and phones nothing home.

An agent that proves it

Runs plan verifiable steps, and the runtime checks each one against the live page — the model saying “done” never counts. You watch the ticks land.

Open source

Electron, SolidJS, and a test suite that gates every push. The repository goes public the day the beta does — audit the browser you type your keys into.

Every new tab

A brief, not a search box.

Open a tab and Glasswing already knows the day: an editorial one-liner that greets you by name — click it and change the name right there — the weather, your favorites, and the trails of browsing you left off. Anything you don't want on the page hides with one click.

  • Autopilot box front and center — one prompt, hands off
  • Journeys gather your browsing into threads you can reopen
  • Guest windows: a fresh, separate browser that erases itself on close
The Glasswing address bar with 'book a table for two on friday night' typed in, and the Run in Autopilot suggestion leading the dropdown

Make it yours

Twenty themes, one browser.

The same new tab, four ways. Aero glass to macOS — all token-driven, all switchable in Settings.

Glasswing in The Glass theme - deep Aero blue
The Glass
Glasswing in the Glasswing Night theme - steel blue dark
Glasswing Night
Glasswing in the Midnight Aurora theme
Midnight Aurora
Glasswing in the macOS Sonoma theme - light glass
macOS Sonoma

Built-in PDF editor

PDFs you can actually edit.

Click any text and retype it. Click any image and replace it. Fill real form fields, drop in a signature, recognize text on scans, find anything with Ctrl+F — then save a real PDF. Tools live in a proper left panel, the way a document editor should. No upload, no watermark, no “pro” tier.

  • Edit text in place with your machine's own fonts
  • Forms, signatures, whiteout, shapes, OCR
  • It's your file — it never leaves your computer
Glasswing's sample document open in the PDF editor - grouped tools in a left panel, editable text and images outlined with object boxes

Tools in the tab bar

Grab the video, not the ads.

One button in the tab bar opens YT Grabber, built into the browser: search YouTube, tick the ones you want out of fifty results, and pull them down in the best quality available — paste a channel URL to queue every upload. Your library, your disk, no upload step and no third party in the middle.

  • Search, preview, and multi-select before anything downloads
  • Paste a channel URL to queue every upload
  • The download engine ships inside Glasswing — nothing else to install
YT Grabber running inside Glasswing: a search for lo-fi study beats returning a grid of video results with three selected and a Download best quality button

Settings

Every switch, explained.

No hidden config files and no dark patterns — each control says what it does in a sentence. Add your key, pick a theme, point an external harness at the built-in MCP server, and get on with it.

Glasswing settings, General pane: homepage, search engine, download location, and a grid of theme swatches
General — browsing, downloads, and the theme grid
Glasswing settings, AI and Agent pane: start free with OpenRouter, chat provider toggle, MCP port, and agent tool limits
AI & Agent — your provider, your limits, your MCP port

Where the beta honestly stands

Work in progress, and it says so.

Working today

  • Tabs, groups, split view, reader, ad-block, private and guest windows
  • Autopilot with runtime-verified steps
  • PDF editing: text, images, forms, signatures, OCR, find
  • YT Grabber: search, multi-select, best-quality downloads
  • BYO keys: Anthropic, OpenAI, OpenRouter, local models
  • 500-test suite green on every push

Still rough

  • Windows first — macOS and Linux builds are untested
  • Site specialists cover a handful of sites so far
  • Settings has corners only a builder could love
  • No installer yet — the beta will ship one

Coming soon.

Free forever, on your own keys. The glasswing butterfly has transparent wings — you can see exactly what it's doing. So can you here.