Rechtschreibprüfung24
Rechtschreibprüfung24 is a web service for checking and improving text in multiple languages.
What Rechtschreibprüfung24 is
Rechtschreibprüfung24 is a web service for checking and improving text in multiple languages. It reviews spelling, including capitalization, repeated words, and colloquial language, as well as grammar, syntax, style, and redundancy. Its AI assistant can correct, shorten, expand, or rephrase writing in different styles. Additional feedback includes readability, word density, filler words, style suggestions, and tone detection. Free use is limited to 20,000 characters, and free users can make up to 10 AI rephrasings per day. Registered users can keep unfamiliar words in a personal dictionary, import PDF, DOC, and DOCX files, and load text from photos with a smartphone camera. A browser extension and a Microsoft Word add-on for version 2016 and newer are listed. The site says checked text is not used for AI training and its servers are in Europe with ISO 27001 certification. The free plan is available, while paid options list ad-free website use and AI functions without a daily limit. The maker is based in Gera, Germany.
Good
- Checks spelling and grammar in multiple languages.
- AI can correct, shorten, expand, or rephrase text.
- Provides readability, word-density, and filler-word analyses.
- Registered users can save words in a personal dictionary.
- Offers a Word add-on for version 2016 and newer.
Watch out
- Free use is capped at 20,000 characters.
- Free AI rephrasing is limited to 10 uses daily.
- The listed platform is web.
Who it suits
It suits writers who want spelling, grammar, and style feedback in a browser, including people working with documents or text from photos. The free option may fit shorter tasks within its character and daily AI limits.
Verdict
Rechtschreibprüfung24 combines proofreading with rewriting and text analysis tools, and offers a free option with stated limits. Check those caps against your typical text length and AI use.
Plans and prices
From Rechtschreibprüfung24's own pricing page, checked 21 Sep 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Free | Free | 20,000 characters · Kostenlos |
| Werbefrei | $300 a month | Alle kostenlosen Funktionen · werbefrei auf rechtschreibpruefung24.de · KI-Funktionen ohne Tageslimit |
| Werbefrei + KI | €450 a month | Alle kostenlosen Funktionen · werbefrei auf rechtschreibpruefung24.de · KI-Funktionen ohne Tageslimit |
| Kostenlos (registriert) | Free | Kostenlose Prüfungen · maximal 20.000 Zeichen · persönliches Wörterbuch · Cloud- und Datei-Funktionen · KI-Synonyme, Umformulieren und Schreibassistent nach Registrierung |
| Kostenlos (Gast) | Free | Rechtschreib-, Grammatik-, Lesbarkeits-, Wortdichte- und Füllwortprüfung · viele Sprachen · maximal 20.000 Zeichen · Drucken/PDF · Cloud-Speicherung · PDF/DOC/DOCX-Import |
| Werbefrei (PLUS) | €3 a month | Alle kostenlosen Funktionen · werbefreie Website · KI-Funktionen ohne Tageslimit · 3,00€/Monat |
| Premium (LanguageTool-Partnerangebot) | €4.16 a month | LanguageTool-Angebot · viele Sprachen · über 100 weitere Fehler · persönliches Wörterbuch · Chrome/Firefox-Add-ons · maximal 40.000 Zeichen · werbefrei · ab 4,16€ mtl. |
| Werbefrei + KI (PLUS) | €4.50 a month | Alle kostenlosen Funktionen · werbefreie Website · KI-Funktionen ohne Tageslimit · ab 4,50€/Monat |
The facts
Each one read from Rechtschreibprüfung24's own pages, with the date it was checked.
What it does
- AI rewriting limit
- The free rewriting function allows up to 10 AI rewrites per day and each retrieval reduces the daily allowance.checked 21 Oct 2026
- AI synonym tool
- Selecting or double-clicking a word produces alternative synonym suggestions.checked 21 Oct 2026
- AI-training policy
- The privacy center says checked texts are not used to train AI models.checked 21 Oct 2026
- AI writing assistant
- Registered users can correct, shorten, expand or rewrite text in selectable styles, tones and formal or informal address.checked 21 Oct 2026
- Camera text recognition
- Registered users can load text from a smartphone camera for checking or AI-assisted optimization.checked 21 Oct 2026
- Cloud storage
- Free accounts can save texts to the service cloud and load them again later.checked 21 Oct 2026
- Data sharing policy
- The privacy center says the service does not sell or otherwise disclose user data to third parties.checked 21 Oct 2026
- Document and photo input
- Registered users can load text from PDF, DOC, and DOCX files, and use a smartphone camera to load text from photos.checked 9 Oct 2026
- Domain date
- Scam Detector reports a domain creation date of 30 January 2024.checked 21 Oct 2026
- Enterprise API
- The feature comparison says an Enterprise version with API is available.checked 21 Oct 2026
- File handling
- The site supports importing PDF, DOC and DOCX files and exporting checked text to PDF.checked 21 Oct 2026
- Filler-word analysis
- The filler-word tool identifies unnecessary words or phrases so text can be tightened.checked 21 Oct 2026
- Grammar checks
- Its grammar analysis looks for faulty syntax, style problems and redundancy.checked 21 Oct 2026
- Independent directory fact
- Cylex lists Oliver Schlöbe in Gera as the software provider behind the service.checked 21 Oct 2026
- Independent educational guidance
- The University of Bremen listing recommends pasting text, starting a check if needed, selecting suggestions and copying the corrected text back to the source document.checked 21 Oct 2026
- Independent educational listing
- Hochschule Osnabrück describes it as a web app supporting 12 languages and texts up to 20,000 characters.checked 21 Oct 2026
- Independent security warning
- Scam Detector assigned the domain a 5.8/100 trust score and labeled it suspicious, young and untrustworthy.checked 21 Oct 2026
- Independent test result
- iamstudent's January 2026 comparison found 6 of 10 planted errors, rated usability low and price-value poor.checked 21 Oct 2026
Where it runs
- Browser extension
- The homepage links to a browser extension installation through LanguageTool.checked 21 Oct 2026
The company
- Company tax identifier
- The legal notice gives VAT identification number DE307600997.checked 21 Oct 2026
- Headquarters
- Gera, Germanychecked 28 Sep 2026
Money
- Free AI limit
- The page says free users can make up to 10 AI rephrasings per day, with the limit resetting daily.checked 9 Oct 2026
- Free plan
- Yeschecked 21 Sep 2026
- Free usage limit
- The listed guest and registered free options allow a maximum of 20,000 characters.checked 9 Oct 2026
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