Edit typed browser code quickly
Use the editor when a full repo is too much but a plain text area is not enough. TSBin keeps code, preview, and diagnostics in one browser tab.
Online TypeScript editor
An online TypeScript editor with browser preview built in
TSBin gives you an online TypeScript editor for quick fixes, examples, and browser experiments. Write typed code, keep supporting files nearby, and run it in the preview.
Built for the in-between work
Write TypeScript, JavaScript, HTML, and CSS, preview changes quickly, and export the files when you need them.
Keep supporting files visible
TypeScript snippets often need HTML structure and CSS context. TSBin keeps those files available instead of treating TypeScript as a standalone paste.
Start without project setup
There is no install step for a quick experiment. Open the editor, make changes, and keep useful drafts in local browser storage.
What TSBin gives you
Concrete browser-editor features, not a social feed or a heavy project scaffold.
preview renders under 50ms
1Live
Sub-50ms previews
Small snippets refresh in under 50ms on the warm preview path.
2Live
Smart IntelliSense
TypeScript completions, diagnostics, and editor feedback built in.
3Live
Emmet support
Expand HTML and CSS patterns quickly with the Emmet plugin.
4Soon
More plugins
Markdown support and more language helpers are on the roadmap.
Frequently Asked Questions
1Is my code saved anywhere?
Your projects are saved in your browser's local IndexedDB storage once you save or run them. Existing saved projects autosave after edits, and TSBin does not upload your code to an account.
2Do you have plugins?
Emmet support is available today for HTML and CSS editing. More editor helpers are planned.
3Do you have Markdown support?
Markdown support is coming soon. Today, TSBin supports HTML, CSS, JavaScript, TypeScript, and JSON project files.
4Can I keep working offline?
Yes. TSBin is designed around local-first browser storage, so saved projects can reopen without account setup or a server round trip.
5What file formats can I save or export?
TSBin supports HTML, CSS, JavaScript, TypeScript, and JSON project files. Export keeps those document formats in a zip file.
6Can I download my code?
Yes. Use File > Export Project to download the current workspace as a zip file.
7How can I clear the console?
Type clear() in the console and press Enter. The shorter clear command also clears the console.
8Does TSBin support dark mode and light mode?
Yes. Use the theme button or Settings to switch themes, or press ModShiftS to toggle between light and dark mode.
9Does TSBin support keyboard shortcuts?
Yes. Open the keyboard shortcuts dialog from the header or press Mod/ to see the available shortcuts.
10Do I have to create an account?
No. There is no account setup, and TSBin does not create an account for you automatically.
11How do I request features or report bugs?
Open the File menu and choose Send Feedback. The form supports bug reports, feature requests, and privacy requests.
12Can I use TSBin as an online TypeScript editor?
Yes. TSBin runs in the browser and provides a TypeScript editing workflow with diagnostics and live preview output.
13Does the editor support HTML and CSS too?
Yes. TSBin is designed for web snippets, so TypeScript can be edited alongside HTML and CSS.