Online Error Checker

Check grammar, spelling, and punctuation errors in your text with instant corrections and suggestions.

Request Feature / Support

5,080+

Total Calculations Run

< 15ms

Browser Execution Speed

100%

Client-Side Privacy

4.9 / 5.0

User Satisfaction

AI Web Tool Generator

Build Your Own Custom Web Calculator in Seconds

Type what tool or calculator you need below. Our AI will build it instantly for your site.

About This Tool

The Online Error Checker is a comprehensive writing assistant tool that helps you improve your text by detecting grammar, spelling, punctuation, and style errors. Simply paste your text or upload a document, and our tool will analyze it using advanced LanguageTool technology. Get detailed suggestions for corrections, explanations for each error, and statistics about your writing quality. Supports multiple languages including English, Spanish, French, German, and more.

Save your calculation history with a free account

How to Use

Paste your text into the text area or upload a document (TXT, DOC, DOCX, PDF)
Select the language of your text from the dropdown menu
Click the 'Check Errors' button to analyze your text
Review the detected errors with suggestions and corrections
Apply corrections directly or copy the corrected text
View statistics about error types and writing quality

Frequently Asked Questions

Find Quick Answers

What types of errors does this tool detect?

The tool detects grammar mistakes, spelling errors, punctuation issues, style problems, and common writing errors. It checks for subject-verb agreement, tense consistency, word choice, capitalization, and more.

Which languages are supported?

The tool supports multiple languages including English (US, UK, Canada, Australia), Spanish, French, German, Portuguese, Italian, Dutch, Polish, Russian, and more. The language selection dropdown shows all available options.

Can I upload documents for checking?

Yes, you can upload TXT, DOC, DOCX, and PDF files. The tool will extract text from these documents and check for errors. File size is limited to 5MB for optimal performance.

Is my text stored or shared when using this tool?

No, your text is processed in real-time and not stored on our servers. The tool sends text to the LanguageTool API for analysis but doesn't retain any data after processing is complete.

How accurate is the error detection?

The tool uses LanguageTool's advanced algorithms which have high accuracy for common grammar and spelling errors. However, like all automated tools, it may occasionally miss complex errors or flag correct usage. Always review suggestions before applying changes.

Need to run multiple calculations?

Create a free account today to unlock unlimited daily runs, access advanced parameters, save your history, and request custom features.

Related Tools

Other useful calculators and utilities you might like

Spotify to MP3 Converter

Convert Spotify tracks and playlists to MP3 format instantly with our free online converter.

Road Distance Calculator

Calculate the driving distance and travel time between two addresses with our free online road dista...

Age Calculator

Calculate your exact age in years, months, and days from any birth date to any target date.

Currency Converter

Convert currencies instantly with real-time exchange rates and historical data support.

Your Feedback Matters

Help Us to Improve