Tabs to Spaces Converter

A free, fast tool to convert tabs to spaces online — or spaces back to tabs. Paste your code or text, pick a tab width of 2, 4 or 8, choose a direction and click Convert. Everything runs locally in your browser, so your code is never uploaded.

How to use

  1. Paste or type your code into the text box above.
  2. Choose a tab width of 2, 4 or 8 spaces.
  3. Pick a direction — Tabs to Spaces or Spaces to Tabs.
  4. Click Convert to transform the text.
  5. Use the Copy button to copy the result, or Clear to start over.

Why use it

Mixing tabs and spaces breaks indentation across editors and is a frequent source of diffs, merge noise and Python IndentationErrors. Normalising whitespace to one convention keeps code reviews clean and consistent. This tool lets developers and SEOs convert tabs to spaces (or the reverse) instantly and privately — the conversion happens client-side in your browser and nothing is uploaded. Need data and lookups at scale? Explore the Kwinside SERP API and pricing.

Frequently asked questions

Is this tabs to spaces converter free?
Yes. The tool to convert tabs to spaces online runs entirely in your browser with no login, no upload and no credit card. Your text never leaves your device.
How many spaces should a tab be?
It depends on your style guide. Two spaces is common for HTML, JavaScript and YAML; four spaces is the default for Python (PEP 8) and many C-style languages; eight matches the classic terminal tab stop. Pick 2, 4 or 8 from the tab width selector.
Can it convert spaces back to tabs?
Yes. Switch the direction to Spaces to Tabs and every run of N spaces (where N is the selected tab width) is replaced with a single tab character.
Is my code sent to a server?
No. All conversion happens client-side in JavaScript. Nothing you paste is transmitted, stored or logged on our servers.

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