What tab widths are supported?

Any width from 1 to 16 spaces per tab.

Does it only affect leading indentation?

Spaces-to-tabs only converts leading whitespace; tabs-to-spaces replaces every tab character in the text.

Yes, use the Download button on the output panel.

Convert indentation between tabs and spaces.

Works Offline

Privacy First

No Login

No API

Direction

Tab size

function greet() {
    console.log('hi');
    if (true) {
        return;
    }
}

Tabs in input

Spaces in input

Convert code indentation from tabs to spaces or spaces to tabs, with a configurable tab width, and see counts of tabs and spaces in your input.

Tabs to spaces

	console.log(1);

Output

    console.log(1);

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Version 1.0.0 · Updated 2026-08-07 · Runs entirely in your browser