Text Difficulty Converter for Web

Make Text Easier or Harder — Fast and Flexible

The Text Difficulty Converter is a web-based tool that uses AI to change the reading level of a passage. It can either simplify material for lower-proficiency readers or make it more challenging for advanced learners, covering levels from A1 up to C2. The system rewrites and restructures content to match the specified competence level while preserving the original meaning.

Input Options and AI Engines

• Uses cutting-edge GPT variants, for example gpt-4-turbo and gpt-4o-mini, to produce fluent, high-quality rewrites
• Accepts documents in common formats, including PDF uploads and plain text input
• Targets specific CEFR bands (A1 → C2) so output matches a learner’s needs
• Can both simplify language and increase complexity by reorganizing sentences and vocabulary

Convert Text into Speech

• Choose from multiple synthetic voices, such as Alloy and Nova, to personalize the listening experience
• Downloadable audio files for offline listening or distribution
• Play audio in full or jump through shorter segments for targeted practice
• Support for several text-to-speech engines so you can compare tone and clarity

Access Requirements

To use either the reading-level conversion or the speech-generation features, an OpenAI API key is required. Entering a valid key links the web app to the AI services that power the transformations.

Alternative Option: ChatDocs (Subscription)

• Subscription-based service that focuses on document-oriented chat and Q&A
• Good if you want tighter integration with files and collaborative workflows
• May serve as a practical substitute for users seeking a different interface or pricing model