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On the recordRead 5 Oct 202612 facts
Nobuf JavaScript Playground
On the record
- Draft storage
- A versioned draft is stored only in the current browser.nobuf.com · read 5 Oct 2026
- Editors
- It provides syntax-highlighted HTML, CSS, and JavaScript editors with preserved cursor position and undo history.nobuf.com · read 5 Oct 2026
- Integrations
- The playground page describes HTML, CSS, and JavaScript editing, project import, and standalone HTML download, but does not name external integrations.nobuf.com · read 5 Oct 2026
- Isolation
- User code runs in a sandboxed iframe without same-origin or top-navigation permission, and messages are accepted only from the current iframe with matching random channel and run identifiers.nobuf.com · read 5 Oct 2026
- Local processing
- The playground runs in the browser, and Nobuf says it does not receive, store, or inspect user input.nobuf.com · read 5 Oct 2026
- Preview and logs
- Users can preview DOM output and inspect logs, warnings, runtime errors, and rejected promises without executing code in the parent page.nobuf.com · read 5 Oct 2026
- Privacy
- Nobuf says tool inputs and selected files are handled on-device and are not sent to an application server.nobuf.com · read 5 Oct 2026
- Purpose
- The JavaScript & HTML Playground lets users write HTML, CSS, and JavaScript with a sandboxed preview and captured console.nobuf.com · read 5 Oct 2026
- Runtime support
- The playground runs browser JavaScript rather than Node.js; ES Modules and import maps work, while Node built-ins, require, process, and bare npm imports are unavailable unless mapped to a browser-compatible URL.nobuf.com · read 5 Oct 2026
- Saving and export
- Users can keep a versioned local draft, import a project, or download a standalone HTML file.nobuf.com · read 5 Oct 2026
- Site infrastructure
- Nobuf says the site has no application API or account server and includes no third-party analytics.nobuf.com · read 5 Oct 2026
- Stop behavior
- Stop replaces the sandbox and invalidates old messages, but the page says browser scheduling prevents guaranteeing recovery from every synchronous infinite loop.nobuf.com · read 5 Oct 2026
