AI Tools

Free AI tools online: text rewriter, humanizer, AI detector, YouTube title, description, tag, hashtag and script generators, thumbnail and calorie AI.

Free AI Tools – Rewriter, Humanizer & YouTube AI

AI tools help you write, check and plan content in seconds – from rewriting a paragraph and making text sound natural to creating YouTube titles, tags, scripts and thumbnail ideas.

What are AI tools?

AI tools use large language models to understand your text or image and create new, useful output. On PDF SEO Tools they run with automatic fallback between several AI providers, so you get an answer quickly even when one service is busy.

All AI Tools

AI Text Rewriter – Rewrite sentences, paragraphs and articles with AI while keeping the meaning. Choose a tone, copy or download the result
AI Humanizer – Turn stiff, robotic AI text into natural, human-sounding writing. Varied sentences, plain words, same meaning – free AI
AI Detector – Estimate whether text was written by AI, with a likelihood score, reasons and tips to make writing more personal. Free A
AI YouTube Title Generator – Generate 10 catchy, honest YouTube titles under 70 characters from your video topic. Choose a style and copy the best –
AI YouTube Description Generator – Write SEO-friendly YouTube descriptions with a strong hook, summary, timestamp placeholders and hashtags. Free AI YouTub
AI Thumbnail Idea Generator – Get 6 YouTube thumbnail concepts with image idea, text overlay, colours and layout. Free AI thumbnail idea generator for
AI Script Generator – Write video scripts with a strong hook, clear sections, on-screen text and call to action. Shorts, Reels and long videos
AI Thumbnail Analyzer – Upload a YouTube thumbnail and get scores for clarity, text, contrast, emotion and curiosity, plus 5 specific improvemen
AI Food Calories Calculator – Estimate calories, protein, carbs and fat for any meal from text or a food photo. Works with Indian food – free AI calor
AI YouTube SEO Score Checker – Get a YouTube SEO score out of 100 for your title, description and tags with concrete fixes. Free AI YouTube SEO checker
AI Channel Name Generator – Generate 10 short, memorable YouTube channel names with reasons. Choose a style and market – free AI channel name genera
AI YouTube Tag Generator – Generate relevant YouTube tags – broad, specific and long-tail – in one comma-separated line under 450 characters. Free
AI YouTube Hashtag Generator – Generate 15 relevant YouTube hashtags for your video or Short, most specific first. Copy in one tap – free AI hashtag ge

AI tools for writers

Use the AI Text Rewriter to say the same thing in fresh words, the AI Humanizer to remove robotic phrases, and the AI Detector to estimate whether a text sounds machine-written. You can paste text or upload a TXT, PDF or Word file.

AI tools for YouTube creators

Plan a whole video in minutes: titles, an SEO description, 20–30 tags, 15–20 hashtags, a full script with hook and outro, thumbnail ideas and even a score for your title, description and tags. The thumbnail analyzer reviews your actual image.

Tips for the best results

Give the AI a clear topic and audience, choose a tone, and always read the result once. Add your own experience and facts – that is what makes content genuinely helpful and trustworthy.

AI Tools: Frequently Asked Questions

Are these AI tools free?

Yes. Every visitor gets a daily number of free uses so the service stays fast for everyone.

Which AI models are used?

Modern open models through OpenRouter and NVIDIA, with automatic switching if one is busy.

Is my text stored?

No. Your input is sent to the AI provider only to create the result and is not saved on our website.

Can I use the results commercially?

Yes, but check facts and add your own insight before publishing.