Six language options · Corrections with reasons · Review before use
Grammar & Spelling Checker – 6 Language Options
Give your draft a second read. Get suggested spelling, grammar and punctuation corrections, compare them with your original, and keep optional style advice separate from the corrected text.
Your proofreading workspace
01 · Language
Choose the draft’s main language. Quality varies by language and context; review every suggestion.
02 · Review scope
Facts, names, numbers, meaning and tone should stay intact. Style advice is optional and is shown separately.
03 · Check
Manual checks only. Shortcut: Ctrl/Cmd + Enter. Availability and service quotas apply.
Site service sends text through AllInOneTools to its configured provider.
Checking sends your text for AI processing. Site service sends it through AllInOneTools to Gemini, or OpenRouter when configured. Backup attempts are enabled by default; uncheck the backup option to disable them. Own-key modes send text and your key directly to the selected provider. Provider logging and retention policies apply.
Enter a draft to begin.
0 whitespace-separated words · 0 visible characters
0 / 5,000 input units
0 output characters
No current check.
Suggested changes and reasons
Optional style advice
Compare with the submitted original
Recent checks
Default: up to 15 checks in this session. Device saving is optional.
How It Works
Paste, analyze, and review — a fast workflow for cleaner writing.
Enter text
Paste up to 5,000 characters and choose your language.
Analyze
The AI scans for spelling, grammar, punctuation, and style issues.
Review
See the corrected text side by side with a bulleted explanation of each change.
Apply
Copy the final version, download it as .txt, or re-check for a fresh take.
Before You Publish
AI proofreading provides a secondary check, not an infallible editorial guarantee.
Voice
The AI may rephrase sentences for clarity. Read the corrected text aloud to ensure it still sounds like you.
Context
Industry jargon, creative phrasing, or deliberate stylistic choices can be flagged as errors. Trust your domain knowledge.
Critical docs
For legal, academic, or medical documents, always have a qualified human review the final text.
Common Ways to Use the Checker
Situations where a fast second read provides practical assistance.
| Use case | Best for | Why it helps |
|---|---|---|
| Professional emails | Client & team communication | Catches typos and punctuation slips before you hit send. |
| Student writing | Essays, reports, assignments | Surfaces common grammar issues so you can fix them before submission. |
| Blog drafts | Content creators | Provides a quick proofreading pass before publishing, leaving final review to the writer. |
| Language learning | Students of a second language | Explains why a correction was suggested, reinforcing grammar rules. |
Capabilities & Limitations
What the tool handles, and what it cannot guarantee.
What it does
- Six language options: English, Spanish, French, German, Hindi and Gujarati.
- Suggested spelling, grammar and punctuation corrections with reasons.
- Optional style advice shown separately.
- Input undo/redo, current-result copy and text download.
- Up to 15 recent checks, with optional device storage.
What it does not
- No guarantee that every suggestion is correct or every error is found.
- No plagiarism checking, fact checking or certified editing.
- No automatic permission to change facts, names, numbers or your meaning.
- No guarantee of provider uptime, free quota or third-party retention policies.
Troubleshooting
Quick fixes for common issues.
AI changed my meaning
Compare the suggestion with the original. Reject edits that change facts, names, numbers, tone or intended meaning. Style advice is optional and separate.
"Quota" or "limit" error
Site allowance resets at UTC hour/day boundaries. Failed admitted checks count. Own-key services are a separate explicit choice and have provider quotas or charges.
Non-English output feels awkward
Quality varies by language, model and context. Review every language’s result with a fluent speaker before important use.
History disappeared
Session history disappears on reload unless device saving is enabled. Clear history disables saving and removes old stored checks; blocked storage can prevent saving.
Frequently Asked Questions
Common questions about the Grammar & Spelling Checker.
Which languages can I select?
The interface offers English, Spanish, French, German, Hindi and Gujarati. Output quality varies by language, model and context. These are language options, not a guarantee of independently verified accuracy.
What changes does the checker suggest?
It requests spelling, grammar and punctuation corrections while preserving facts, names, numbers, meaning and tone. If you select the style option, separate optional style advice is requested. Review the suggestions; the service can still make mistakes.
Where is my text processed?
Site service sends text through AllInOneTools to its configured Gemini or OpenRouter provider. Backup attempts are enabled by default. Uncheck the backup option to use only the first configured provider. Own-key modes send text directly from your browser to the chosen provider. Infrastructure and provider logging or retention policies may apply.
What is the input limit?
Up to 5,000 JavaScript UTF-16 input units per check. Visible character counts can differ for emoji and combined characters. Long input is rejected without silent truncation. Incomplete or malformed provider output is not presented as a successful correction.
How does the shared allowance work?
The default backend allows 20 admitted checks per network per UTC hour and 500 across the site per UTC day. Failed admitted checks count. The daily window resets at 00:00 UTC. Shared networks use the same allowance; own-key modes have separate provider limits.
Is using my own API key required?
No. Site service uses the server’s configured credentials when available. Own-key modes are optional and must be selected explicitly. Provider limits or charges may apply. Browser-entered keys can be accessed by other scripts on the page.
Are keys or previous checks saved?
This version saves no API keys in browser storage. Optional key reuse uses page memory until reload. Previous checks stay in bounded session memory unless you enable device saving. The theme preference is stored in the browser. Clear history removes saved checks and disables remembering.
What happens when I cancel or edit the draft?
The interface aborts waiting and ignores late results. Input or review-setting changes clear the old suggestions and disable their exports. A request already sent may still be processed by the server or provider.
Can I use the result for important documents?
Use it as an editing aid. Compare the correction with the original and obtain qualified human review for important material. The tool does not certify grammar, facts, legal validity or suitability for a particular use.