Check & correct
Proofread your whole text with AI Grammar check
Check grammar & sentence structure Check commas
Commas & punctuation Coherence check
Check your line of argument
Rewrite & style
Make it more human
Cite & sources
Change text length
Secure & GDPR-compliant
Your content is safe: processing takes place exclusively on our own servers in Germany, with no disclosure to third parties.
- GDPR-compliantData protection under German law.
- Local AI servers in Karlsruhe, GermanyNo data transfer abroad.
- SSL-encrypted transferEncrypted from your browser to the AI server.
- Deleted after 7 days at the latestAccording to the provider, uploads are deleted no later than 7 days after the order is completed.
How to use the free AI tools properly
On this page you will find all the free AI tools for texts from corrected.eu gathered in one place. Each tool is tailored to a specific writing task: one text should become error-free, the next shorter, the one after that more natural. Simply choose the category that fits your goal, paste your text and get a suggestion in seconds, with no registration and straight in the browser, for English and German texts.
Checking and correcting
If you first want to know where the mistakes are, the checking tools are the right start. The AI proofreader corrects your whole text, the grammar checker looks at sentence structure, tenses and references, and the comma checker uncovers missing or superfluous commas. To check the line of argument in your paper, use the coherence check.
Rewriting and improving style
Sometimes a text is correct but sounds clumsy or too colloquial. The style tools help: with paraphrasing, you rephrase passages without changing the message, and the text shortener tightens wordy passages by cutting filler.
Changing the length of a text
If your section is over the character limit, the text shortenertightens it without losing important content.
Making AI texts more human
Texts that come entirely from an AI often feel smooth and uniform. The humanizer loosens sentence rhythm and word choice so that your text sounds more natural and personal. This is especially useful if you took an AI draft as a starting point and then want to give it your own credible voice.
Citing and sources
Once your text is written, the citation generator makes sure your sources appear consistently and correctly in the citation style you want.
Combining AI tools with human proofreading
All the tools on this page work with artificial intelligence and deliver a result in seconds. For term papers, bachelor's or master's theses, a second step is recommended: a human editor checks your text for subtleties that an AI overlooks, such as the logic of your argument, technical terms and the common thread. At corrected.eu, a professional does this from €1.90 per page.
Free and with no registration
All the AI tools are free to use and need no registration. You copy your text in or upload a file, start the analysis and take over the result with one click. So you can use several tools one after another until your text convinces in content, style and language, from the first draft to the finished submission.
Helpful combo scan
„Helpful combo scan. I ordered the plagiarism + AI scan and was able to correct several citations, and on the repeat scan the result came out at 0 %.“
Accurate results from the plagiarism and AI scan
„I have absolutely nothing to complain about. The results are satisfactory and completely comprehensible. Both the plagiarism and the AI scan gave accurate results. Although a technical error occurred during my second scan, I was helped promptly, even on a Saturday. All in all I am very satisfied and can warmly recommend the service!“
Combo scan in 2 minutes
„The combo scan arrived by email in 2 minutes, great!“
Frequently asked questions about the free AI tools
Are the AI tools really free and without registration?
Yes. All the tools run directly in the browser, with no account, no trial period and no page limit. Costs only arise when you have a result reworked by a professional proofreader, from €1.90 per page.
Are my texts stored or passed on?
No. Processing takes place exclusively on our own servers in Karlsruhe, the transfer is SSL-encrypted, and neither pasted texts nor uploaded files are stored or passed on to third parties.
May I use the AI tools for a term paper or final thesis?
That depends on your university's examination regulations and the requirements of your subject. Language aids such as spelling and grammar checks are usually unproblematic, whereas generating content is often only allowed with a declaration or not at all. Check the rules that apply to you, and before you submit, use the AI detector to see which passages read as machine-written.
Which tool suits which task?
To find errors, use the tools under Check & correct. For wording and style, use the rewriting tools, and for shortening, the text shortener. Once the work is finished, the citation generator helps with your sources.
Do the AI tools replace proofreading?
No. The tools find errors and suggest wording, but they make no subject-specific decisions and do not know the requirements of your institute. A professional proofreader checks language, style and form in the context of your subject and takes responsibility for the result.
Do the tools also work with whole documents?
Yes. Besides pasting text, the tools accept uploaded files (.txt, .docx, .rtf and .odt), so you do not have to pass a term paper or thesis through section by section.