Introduction
Finding the right AI copywriting tool in 2025 can feel overwhelming — especially with so many new platforms launching every month. But here’s the good news: you don’t need expensive software to create high-converting content. Today’s best AI copywriters offer free and freemium plans that give you everything from blog posts to ad copy, emails, landing pages, product descriptions, and even SEO-ready content.
In this guide, we’ve hand-picked the best AI copywriting tools for 2025 that deliver real results without breaking your budget. Whether you’re a marketer, creator, business owner, or complete beginner, these tools will help you write faster, smarter, and at a professional level — all while saving you time and money.
Let’s dive into the top AI copywriters worth using this year.
| Tool | Free Plan / Freemium | Key Features |
| Copymatic AI | Limited free plan | Conversion-framework templates (AIDA, PAS, etc.), long-form and short-form copy, landing pages, ads |
| Writesonic | ~10,000 words free credits per month | Blog/article writer, landing page generator, ChatSonic (real-time chatbot), SEO tools, many templates |
| Copy.ai | Free plan: ~2,000 words per month (according to sassyfi) | 90+ templates, short-form & long-form content, multilingual support, workflow automation |
| Rytr | Free plan: ~10,000 characters / month | 40+ use cases / templates, 20+ tones, multi-language support, plagiarism checker |
| Frase | Limited free plan | SEO content briefs, SERP analysis, content optimization, long-form writing support |
| Anyword | Free / freemium version available | Predictive performance scoring (how well copy might convert), ad copy templates, brand voice, A/B testing support |
| Hypotenuse AI | Free trial / limited credits | E-commerce product descriptions, SEO blog writing, bulk content generation |
| Grammarly AI | Grammarly itself has a free plan; its AI rewriting / suggestions are part of paid or enhanced plans | Grammar & style checking, tone detection, sentence rewriting, clarity improvements |
| Simplified | There’s a “free forever” plan | AI writer + graphic design tools, social media content, video scripts, ad copy |
| Claude (Anthropic) | Has a free tier / limited usage (depending on version) | Conversational writing, long prose, brainstorming, creative content |
| ChatGPT (OpenAI) | Free tier available (with some usage limits) | Flexible prompt-based writing, content ideation, emails, ads, blogs |
Best AI Copywriting Tools in 2025: Top Picks for Affiliate Marketers
1. Writesonic
Why it’s great for affiliates:
- With 10,000 free words per month (on some plans), you can generate product review posts, blog articles, or comparison content without immediately paying.
- SEO-friendly features: SEO tools + templates help you write content that ranks (or at least is optimized).
- ChatSonic: lets you chat with the AI for brainstorming, idea generation, or refining your affiliate content.
Pros
- Versatile: supports long-form and short-form content.
- Affordable: even when you outgrow the free credits, paid plans are relatively reasonable.
- Templates: a good variety (blog intros, review posts, product descriptions, etc.).
Cons
- Free credits are limited; heavy affiliate blogs may exhaust them quickly.
- Generated content still needs human refinement to sound trustworthy and to comply with affiliate marketing ethics
Use-case tip for affiliates: Use your free allocation each month to test different blog post structures (e.g., “Best X for Y”, “X vs Y”, “How to Use X”). Use Writesonic’s SEO tools to optimize for relevant affiliate keywords.
2. Rytr
Why it’s good for affiliates:
- Lightweight, very fast for short-form: great for email sequences, ad copy, or social media promos of your affiliate offers.
- 20+ tones let you adjust persuasion level: e.g., more authoritative for tech products, more friendly for lifestyle products.
- Plagiarism checker helps ensure your content is unique enough (helpful if you’re repurposing or summarizing existing content).
Pros
- Very cheap / free tier makes it low-risk.
- Supports many languages: useful if you’re promoting internationally.
- Easy to start; little learning curve.
Cons
- Not ideal for very long-form affiliate content like in-depth review guides without manual prompt engineering.
- The free limit (characters) may force you to be concise, which isn’t always ideal for SEO-rich affiliate blog posts.
Affiliate tip: Use Rytr’s free plan to generate email pitches to your list, or to write short landing page copy for affiliate products. Then, upgrade for a paid plan once you’re converting.
3. Copy.ai
Why it’s helpful for affiliate marketers:
- 90+ templates: includes marketing frameworks, product descriptions, ad copy, and email sequences.
- Workflow automation: helps scale content production (e.g., many product descriptions for affiliate catalogs).
- Multilingual support: good for non-English audiences.
Pros
- Easy to use, especially for marketing collateral.
- Good “idea generator” for titles, intros, and marketing angles.
- Free plan, so you can test it without high commitment.
Cons
- Free-tier word limit may be too restrictive for long-form affiliate content.
- May require refinement: AI-generated product descriptions or reviews might lack nuance or personal insight.
- Less optimized for SEO vs tools like Frase or more specialized content writers.
Affiliate tip: Use Copy.ai’s free plan to write promotional emails, video script outlines, or short review paragraphs. For SEO-rich content, draft with Copy.ai then polish with another tool or manually add affiliate disclosures and depth.
4. Frase
Why it’s powerful for affiliates:
- Provides content briefs based on SERP analysis: helps you structure affiliate articles around actual search intent.
- SEO optimization: helps you include relevant keywords, topics, and subtopics.
- Long-form writing assistance: you can generate full blog posts, reviews, or comparison content.
Pros
- Great for SEO-driven affiliate content; helps you target SEO value.
- Research + writing in one tool: you can analyze competitors’ content and then write.
- Scalable for content operations — useful if you run many affiliate sites.
Cons
- Free trial or limited free plan only; to fully leverage, you’ll likely need a paid plan.
- More complex: steeper learning curve than simple “write a paragraph” tools.
- Cost may be too high for very small, one-product affiliate sites (depending on budget).
Affiliate tip: Use Frase’s content brief feature to plan high-value SEO content: e.g., “Best Product A vs Product B” articles, or “Complete Guide to [Niche Product Category]” — this helps you target organic traffic more effectively.
5. Anyword
Why it’s beneficial to affiliates:
- Predictive performance scoring: it will estimate how well a particular copy might convert or perform, which is super useful for affiliate placements.
- Templates for ads, landing pages, and emails: helps you scale your affiliate promotions.
- A/B variant generation: generate multiple versions of copy to test which converts better.
Pros
- Data-driven: reduces “guessing” which affiliate pitch will work.
- Performance insights: helps you refine your promos based on likely engagement.
- Good for paid affiliate advertising (if you run FB / Google ads).
Cons
- The dashboard can feel technical for beginners.
- To fully leverage performance scoring, you may need a paid plan.
- Might require a decent volume of usage to make sense financially.
Affiliate tip: Use Anyword’s free or trial credits to generate multiple ad copy variants for your affiliate offers. Use the predictive score to pick the top-performing ones, test them, and iterate.
My Recommendation (for Affiliate Marketers)
- If you’re just starting out with very little budget, begin with Writesonic’s free credits and Rytr’s free plan: they cover blog posts + promotional copy + email.
- If SEO is your main channel, combine Frase (to plan your articles) + Writesonic (to generate the content) — even if you use free/trial credits.
- If you’re doing paid ads for affiliates, Anyword is super helpful to predict and optimize which copy converts best.
Once you scale, you can move to paid plans of these tools strategically — only where they deliver ROI (e.g., in your best-converting product lines).
