Tool details checked against each provider's official pages on October 8, 2026. This guide is based on that research, not on long-term hands-on testing. Free plans change often, so check the linked official page before you rely on a specific limit.
Running a blog on Blogger (Blogspot) is free, and with the right tools growing it can be nearly free too. AI can help you find topics, plan posts, polish your writing and make images. But it won't do the job for you, and Google is clear about what it rewards. This guide lists seven free tools that cover the whole blogging workflow, plus what Google officially says about AI content.
First: what Google says about AI-written content
Google Search Central's guidance says generative AI can be useful for researching a topic and adding structure to original content. But it warns that using AI tools to generate many pages "without adding value for users" may violate Google's spam policy on scaled content abuse.
Google also reminds publishers that AI can produce inaccurate content, so you should review and fact-check everything, including titles, meta descriptions and image alt text. It suggests telling readers how content was created when that's helpful.
In practice: use AI as an assistant for research, outlines and editing, then add your own experience, examples and checking. Don't publish dozens of unedited AI articles.
Official page: Google: Guidance on using generative AI content
The 7 free tools
| Blogging step | Free tool | Free limit |
|---|---|---|
| Find what people search for | Google Trends | Free with no stated limit |
| Keyword ideas | Ahrefs Free Keyword Generator | Free; limits not stated |
| Outline and brainstorm | A free AI chatbot | Depends on the chatbot |
| Grammar and clarity | Grammarly Free | 100 AI prompts per month |
| Rewording and summaries | QuillBot Free | 125-word paraphrases |
| Images and graphics | Canva Free | Up to 20 AI uses |
| Track Google performance | Google Search Console | Free |
1. Google Trends: see what people are searching for
Google Trends shows how interest in a search term changes over time and by country, and suggests related topics that are rising. Use it to compare two topic ideas before you write, or to time seasonal posts.
Official page: Google Trends
2. Ahrefs Free Keyword Generator: find keyword ideas
Ahrefs describes this as a free tool to "generate hundreds of free keyword ideas" for Google, Bing, YouTube and Amazon, with monthly search volume estimates. Type in your topic and look for specific, longer phrases that a beginner blog can realistically rank for.
- Note: the page doesn't spell out free usage limits or which metrics are reserved for paid plans.
Official page: Ahrefs Keyword Generator
3. A free AI chatbot: outlines and brainstorming
ChatGPT, Gemini, Claude and Copilot all have free plans that are great for the planning stage. Try prompts like:
- "Suggest 10 questions beginners ask about [topic]."
- "Create an outline for a blog post on [topic] for [audience], with H2 and H3 headings."
- "What important points is this draft missing?" (paste your draft)
Compare their free plans in our guide: Best Free AI Chatbots in 2026.
4. Grammarly Free: catch mistakes
Grammarly's free plan corrects basic errors and shows your writing tone. It also lets you generate text with 100 AI prompts per month. Full-sentence rewrites, tone adjustment, and plagiarism and AI-text detection are paid features.
- Paid option: Pro is listed at $12 USD, with a 7-day free trial.
Official page: Grammarly plans
5. QuillBot Free: rewording and summaries
QuillBot helps when a sentence feels clumsy or when you need to summarize a long source while you research.
- Free limits: the paraphraser handles up to 125 words at a time in 2 modes (Standard and Fluency), the summarizer up to 1,200 words, and there's limited access to its AI detector and AI chat.
- Paid option: Premium is $8.33/month billed annually.
- Use carefully: rewording someone else's article isn't original content. Use it on your own sentences.
Official page: QuillBot plans
6. Canva Free: featured images and graphics
Every post needs a featured image, and Canva Free has templates for blog headers, Pinterest pins and social posts. Its free plan includes AI image generation and design generation, with up to 20 AI uses shared across its AI tools.
- Blogger tip: export as JPG or PNG, keep the file small, and always fill in the image's alt text in the Blogger editor.
Official page: Canva pricing
7. Google Search Console: see how Google sees your blog
Search Console isn't an AI tool, but every Blogger site should use it. It's free and shows which searches bring visitors to your posts, which pages are indexed, and any problems Google finds. Use what you learn to update the posts that are already getting impressions.
Official page: Google Search Console
A simple free workflow for each new post
- Pick a topic with Google Trends and Ahrefs' keyword generator.
- Outline with a free AI chatbot, then add your own points and experience.
- Write the draft yourself, using AI only for stuck spots.
- Fact-check every number, price and claim against an official source.
- Polish with Grammarly or QuillBot.
- Create a featured image in Canva and add alt text.
- Publish, then check Search Console after a few weeks and improve the post.
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