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Code Runner
Run browser-side JavaScript in a sandboxed frame, with a real console and errors.
Launch tool ↗THE ALTRA TOOLKIT • V1.0
Useful things.
One workspace.
Write, run, communicate and coordinate. Four completely different tools, built to feel like one seriously good piece of software.
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Text Studio
Write, organise, edit and export plain text, Markdown, HTML, CSS or JSON files.
Launch tool ↗◉
Intercom Pro
Private browser voice rooms, push-to-talk and speaker/microphone controls.
Launch tool ↗▣
Relay Screens
Send full-screen notices, calls and countdowns to another device instantly.
Launch tool ↗DEVELOPER TOOLS
Code Runner
JavaScript executes locally inside a restricted iframe, not on the Cloudflare server.
Ready when you are.
Code runs with scripts allowed but no same-origin access, network or popups. Never run untrusted snippets you don't understand.
DOCUMENTS
Text Studio
A fast multi-document editor with local autosave, import, search and export.
0 wordsNo search
Documents are stored in this browser's local storage. Export important work; clearing site data removes local copies.
LIVE COMMUNICATIONS
Intercom Pro
Browser-to-browser audio for small teams. Create a private room, share the access code and hold TALK to transmit.
Disconnected0 participants
Microphone access requires HTTPS and your browser's permission. WebRTC may fail behind certain restrictive networks. Room codes are private bearer credentials: only share with intended participants. This V1 uses mesh audio for small rooms, not enterprise broadcast.
CONNECTED DISPLAYS
Relay Screens
Turn a spare tablet or monitor into a remotely managed full-screen display.
Not connected
LIVE DISPLAY
WELCOME BACKSTAGE
Stand by for the next cue
To show on another device, open the invite URL there. Anyone with the code can publish to that room; use private rooms for sensitive content. Updates sync through Cloudflare when deployed as a Worker.