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.

Can I download the result?

Yes, use the Download button on the output panel.

Is my data uploaded to a server?

No. This tool runs entirely in your browser using standard web APIs, so your input never leaves your device and nothing is logged or stored on our servers.

Does it work offline and on mobile?

Yes. Once the page has loaded it keeps working without a network connection, and the layout is responsive so it stays usable on phones and tablets.

Tabs to Spaces Converter

Convert indentation between tabs and spaces.

Support

Works Offline

Privacy First

No Login

No API

Direction

Tab size

Input

Converted

JavaScript

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

Tabs in input

Spaces in input

About the Tabs to Spaces Converter

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.

Popular uses

tabs to spaces
spaces to tabs
indentation converter
whitespace

Examples

Tabs to spaces

	console.log(1);

Output

    console.log(1);

Keyboard shortcuts

Copy the main outputCtrl / ⌘ + Shift + C
Download the resultCtrl / ⌘ + S
Share this toolCtrl / ⌘ + Shift + S
Reset the inputsAlt + R
Open the tool search paletteCtrl / ⌘ + K

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Frequently asked questions

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