What can I do with Grammar Cleanup?

Fix spacing, capitalisation and common punctuation slips. Grammar Cleanup is part of the Writing shelf on utils.sbs and is designed for quick, one-off tasks.

Is Grammar Cleanup free to use?

Yes. Grammar Cleanup is free, requires no account, and has no per-file or per-use charge.

Are my files uploaded when I use Grammar Cleanup?

No. Grammar Cleanup is designed to process your input locally in the browser. Files are not uploaded to a server for processing.

What formats does Grammar Cleanup support?

It works with plain text, code, markup and structured text, and returns a downloadable text file.

Can I use Grammar Cleanup on my phone?

Yes. Grammar Cleanup is responsive and works in modern mobile browsers. Very large files may be limited by the device's available memory.

Writing tool

Grammar Cleanup

Fix spacing, capitalisation and common punctuation slips.

Runs on-deviceNo sign-upFree

All writing tools

Workspace

Grammar Cleanup

Runs locally

Input

335 chars · 63 wordsStays in this tab

Output

The guide

By the utils.sbs team · Reviewed November 2026 · How we build and review tools

Quick answer

Grammar Cleanup is a free browser-based writing tool. Fix spacing, capitalisation and common punctuation slips. It runs with JavaScript locally, requires no account and does not upload your files. Open the page, add your input, adjust any options and download the result.

What is Grammar Cleanup?

Grammar Cleanup is a free browser-based writing tool from utils.sbs. Fix spacing, capitalisation and common punctuation slips. It is built for quick, focused jobs: open the page, add your input, adjust the options and take the result with you. No account, install or server upload is required.

At a glance

Category	Writing
Input	Plain text, code, markup or JSON
Output	A downloadable text or code file
Engine	JavaScript
Processing	In your browser
Price	Free
Account	Not required

How Grammar Cleanup works

Text is processed in the browser with JavaScript and downloaded from a local blob. Nothing is uploaded.

How to use Grammar Cleanup

1Open Grammar Cleanup and add your input.
2Use the default settings, or choose the format or detail level that matches your goal.
3Run the tool, check the preview or result, and download the output.

When to use Grammar Cleanup

Clean, transform or compare text before using it elsewhere.
Convert markup, JSON or structured text between formats.
Count, format or inspect content quickly in the browser.

Limitations

Very large inputs may be limited by the browser's available memory.

Privacy and accuracy

Grammar Cleanup processes its input in the browser whenever the platform API allows it. Files and values are not uploaded to a server for processing, and the tool does not require an account. For calculations, use the result as a reference and verify important decisions against the source formula or a qualified professional. Read our methodology.

FAQ

Grammar Cleanup questions

What can I do with Grammar Cleanup?
Fix spacing, capitalisation and common punctuation slips. Grammar Cleanup is part of the Writing shelf on utils.sbs and is designed for quick, one-off tasks.
Is Grammar Cleanup free to use?
Yes. Grammar Cleanup is free, requires no account, and has no per-file or per-use charge.
Are my files uploaded when I use Grammar Cleanup?
No. Grammar Cleanup is designed to process your input locally in the browser. Files are not uploaded to a server for processing.
What formats does Grammar Cleanup support?
It works with plain text, code, markup and structured text, and returns a downloadable text file.
Can I use Grammar Cleanup on my phone?
Yes. Grammar Cleanup is responsive and works in modern mobile browsers. Very large files may be limited by the device's available memory.

Keep going

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