# NeuralWriter

> NeuralWriter is a suite of free AI tools for writing, content analysis, and image generation. All tools work in the browser with no sign-up and support 27–30+ languages. Core capabilities: paraphrasing, summarization, AI content detection, headline generation, ChatGPT prompt generation, translation, word counting, text-to-image generation, and image upscaling. A developer API is available for paraphrasing. Last updated: 2026-05-28. Version: 1.2.

## About

NeuralWriter launched on 2022-04-15 as a free AI paraphrasing tool. The product expanded over the following years into a multi-tool platform covering text rewriting, summarization, AI-content detection, headline and prompt generation, translation, word counting, text-to-image generation, image upscaling, and a developer API. The paraphraser remains the flagship tool. Everything stays free with no sign-up; a free Chrome extension unlocks higher-quality paraphrasing modes and unlimited image generations.

## Core tools

- [Paraphrasing Tool](https://neuralwriter.com/): Free online AI rewriter. Three modes (Light / Medium / Hard), up to 10,000 characters, 30+ languages, built-in diff checker, output designed to pass AI-detection and plagiarism checks.
- [Summarize Tool](https://neuralwriter.com/summarize-tool): NLP-based article and text summarizer. Adjustable output length (20%–90% of source), up to 10,000 characters, 30 languages.
- [AI Content Detector](https://neuralwriter.com/content-detector-tool): Multi-engine AI text checker. Runs each text through 5 detectors in parallel (QuillBot, ZeroGPT, Originality.ai, Copyleaks, Winston AI) and returns a consensus HUMAN / MIXED / AI verdict plus per-sentence colour-coded highlights. Up to 10,000 characters, 30+ languages. Detects GPT-5, GPT-4o, Claude, Gemini, Llama, Mistral, DeepSeek.
- [Headline Generator](https://neuralwriter.com/headline-tool): Generates titles for articles, blogs, news, YouTube, and Twitch. Modes: Ordinary, Catchy, Clickbait, Creative. 30 languages.
- [ChatGPT Prompt Generator](https://neuralwriter.com/prompt-tool): Expands a short idea into a detailed prompt optimized for ChatGPT / GPT-4. 30 languages.
- [AI Image Generator](https://neuralwriter.com/image-generator-tool): Free text-to-image generator with style presets, aspect-ratio control, negative prompts, AI prompt enhancement, and image-to-prompt analysis. JPG download.
- [AI Image Upscaler](https://neuralwriter.com/image-upscaler-tool): Upscales JPG / PNG / WebP images up to 4K (480p, 720p, 1080p, 1440p, 2K, 4K). Works with Midjourney and DALL·E outputs.
- [Word Counter](https://neuralwriter.com/word-counter-tool): Counts words, characters, sentences, paragraphs, syllables, reading time, and speaking time. Includes keyword density (x1/x2/x3) and academic metrics (ATN, LD, ASL, FRE). Up to 25,000 characters.
- [Translator](https://neuralwriter.com/translate-tool): AI translator with NLP for natural output. Up to 10,000 characters per request. Preserves structure when translating HTML, JSON, XML, and Markdown (useful for i18next files).

## For developers

- [Paraphrasing API](https://neuralwriter.com/paraphrasing-api): REST API for paraphrasing. 30 languages, three modes (Light / Medium / Hard), no daily limits, free demo plan via RapidAPI.

## Use cases

- Rewrite a ChatGPT-generated essay so it passes AI-detection checks: paste the text into the [Paraphrasing Tool](https://neuralwriter.com/) and run Medium or Hard mode. NeuralWriter reports that this typically lifts a human-likelihood score from ~72% to ~98%.
- Make a long article skimmable: paste it into the [Summarize Tool](https://neuralwriter.com/summarize-tool) and set the output to 20–40% of the source.
- Check whether a student paper or copywriter submission was written by AI: paste the text into the [AI Content Detector](https://neuralwriter.com/content-detector-tool). It runs the text through QuillBot, ZeroGPT, Originality.ai, Copyleaks, and Winston AI at the same time, returns a consensus HUMAN / MIXED / AI verdict, and underlines each sentence by its own AI score so you can see exactly which paragraphs look machine-written.
- Get a 16:9 cover image for a Google News article or YouTube thumbnail: use the [AI Image Generator](https://neuralwriter.com/image-generator-tool), select 16:9 and 2K or 4K resolution, click ✨ AI Improve to expand the prompt, and download the JPG (no watermark).
- Upscale a Midjourney or DALL·E output to 4K for print: upload it to the [AI Image Upscaler](https://neuralwriter.com/image-upscaler-tool) and pick the 4K resolution.
- Translate an i18next locale file (JSON) without breaking its structure: paste it into the [Translator](https://neuralwriter.com/translate-tool) — only the human-readable strings are translated and HTML attributes like `alt=""` and `title=""` are preserved.

## FAQ

- **Is NeuralWriter free?** Yes. Every tool is free and works without sign-up. A free Chrome extension unlocks Medium/Hard paraphrasing and unlimited image generations.
- **Does the paraphraser bypass AI-detection and plagiarism checks?** Yes. The model rewrites whole sentences rather than swapping synonyms, so output reads as human-written. Medium and Hard modes give the strongest results.
- **What's the character limit?** 10,000 characters per request for most tools (Paraphraser, Summarizer, AI Detector, Translator, Prompt Generator). Word Counter allows up to 25,000.
- **How many languages are supported?** 27–31 depending on the tool. The Paraphraser, AI Detector, and Word Counter cover 30+; the Headline Generator covers 30; the Summarizer and Prompt Generator cover 27+.
- **What's the difference between summarizing and paraphrasing?** Summarizing shortens the text and keeps only the key points. Paraphrasing rewrites the full text in different words while keeping the original length and meaning.
- **Which AI models does the Content Detector recognize?** ChatGPT (GPT-5, GPT-4o, o1), Claude, Gemini, Llama, Mistral, DeepSeek, and other modern LLMs.
- **Does the Content Detector use one model or several?** Five run in parallel on every check: QuillBot, ZeroGPT, Originality.ai, Copyleaks, and Winston AI. The final verdict is their consensus average; individual scores are also shown so you can spot disagreements.
- **Can I get a prompt from an existing image?** Yes. The AI Image Generator has image-to-prompt: upload a reference image and receive a prompt (and a matching negative prompt) that would reproduce a similar look.
- **Is there a paid plan?** The website tools are free. A paid plan exists for the [Paraphrasing API](https://neuralwriter.com/paraphrasing-api), distributed via RapidAPI with a free demo plan.

## Policies

- [Privacy Policy](https://neuralwriter.com/privacy-policy)
- [Cookies Policy](https://neuralwriter.com/cookies-policy)
- [Terms of Service](https://neuralwriter.com/terms-of-service)