Spaces to Tabs
Spaces to Tabs exists to do one job well: replace groups of four spaces with tabs. All counting, matching and rewriting happens in JavaScript on the page itself, so even long confidential drafts stay in your browser. It is used most by students checking an essay against a strict word limit. Works on documents of tens of thousands of words without lag. Nothing is gated: no signup wall, no trial period, no upgrade prompt.
Key features
- Pasted rich text is reduced to plain text — formatting is not carried over.
- Line endings from Windows, macOS and Linux are all understood.
- Works on desktop, tablet and phone — no separate app to install.
- Loads in under a second and gives its result in one action.
How to use Spaces to Tabs
- Paste your text: Paste or type into the box above. It accepts anything from a sentence to a full manuscript.
- Choose what you need: Set the options that match your task — the result updates as you change them.
- Copy the result: Copy the output with one click and paste it wherever you are working.
Frequently asked questions
- Can I use it offline? — Once the page has loaded, yes — the work happens locally, so a dropped connection will not interrupt you.
- Will formatting be kept? — No. Pasted content is treated as plain text, so bold, colours and links are dropped.
- Does it handle languages other than English? — Yes — full Unicode support, so Cyrillic, Arabic, Chinese, Japanese, accented Latin and emoji are all handled properly.
- How much text can I paste in? — Tens of thousands of words is comfortable. The only real limit is how much your browser will hold.