Fill Missing Words in Seconds

Fill Missing Words overview

Fill Missing Words is a text tool that completes sentences and paragraphs with missing words. You paste the full text and mark each gap with ... for one word or --- for a longer gap. The tool returns the same text with a word or phrase inserted at each gap. The output stays in the same language and tone, so it reads like your original draft.

This is for moments when a word is missing or you are not certain about the exact phrase. It helps writers, students, and teams finish drafts without stopping to search for a word. The goal is completion, not rewriting.

How it works

Add a marker at each missing spot and run the tool. It reads the nearby sentences and chooses a fit based on meaning and grammar. The rest of the text stays unchanged.

Gap styles and hints

Use ... for a single word and --- for a phrase or short sentence. Keep the markers in the text and place them where the missing words should go. If you know the word type, add a hint in brackets like [noun], [verb], or [past tense].

Short hints help the model pick the right form without changing your sentence. Keep names, product terms, numbers, and dates in place so the fill can match them.

Common use cases

Finish an email when a word is on the tip of your tongue. Complete meeting notes that missed a term. Restore missing words in captions or transcripts. Fill gaps in product copy or docs when a draft is rushed. Repair a quote in a blog post when one word is missing.

Output details

The output is plain text. It keeps punctuation, line breaks, and spacing from the input. It does not add notes, labels, or extra formatting.

Tips for good results

Keep the full paragraph so the tool has enough context. Add one or two sentences around the gap if the meaning is unclear. Keep your original wording and let the tool fill only the marked spots.

For fast drafting

When you draft quickly, drop in ... or --- and keep moving. Run the tool after the draft to fill the blanks. This keeps momentum and lets you finish the first version faster.

Multilingual writing

The tool keeps the language of the input, so you can fill gaps in English, German, Spanish, or any language you write in. Keep the surrounding text in that language so the fill fits the tone.

Handling tricky gaps

If a gap needs more than one word, use --- and add a hint like [two words]. For names or product terms, leave the spelling in the text so the output can match it. For numbers or dates, keep the format in place.

Use it inside your workflow

RewriteBar on macOS lets you run this action inside any app. Select text with gaps, run the action, and paste the result back into Mail, Slack, Notion, or a browser. This saves time and keeps your writing flow intact.

Why it is different

Fill Missing Words focuses on completion, not rewriting. It fills only the gaps you mark and leaves the rest of the text alone. If you want a full rewrite after that, pair it with Fix Grammar or Improve Writing.