🏆 7 Best AI SEO & Writing Tools (2025)
Rank #1 on Google with these essential content tools.
Frase
Research, write, and optimize high-ranking SEO content in minutes.
Why It’s #1
- Analyzes top 20 Google results to build content outlines
- Built-in AI writer optimized for SEO intent
- Integrates directly with Google Search Console
Limitations
- Keyword research tool is basic compared to Ahrefs
Surfer SEO
Global #1 SEO content scoring tool. Optimize articles like playing a game.
What We Like
- The “Content Score” (0-100) is the industry standard
- Tells you exactly which keywords to add and how many times
- Audit existing pages to find missing opportunities
Limitations
- More expensive than Frase
- No built-in free AI writer (requires add-on)
Jasper AI
The smartest AI writing assistant. It doesn’t just rewrite; it creates original, on-brand content.
What We Like
- “Boss Mode” writes long blog posts incredibly fast
- Learns your specific Brand Voice (Tone & Style)
- Excellent for marketing copy, emails, and ads
Limitations
- Can be pricey for solo creators
- Content still needs fact-checking
Brevo
Formerly Sendinblue. The best email marketing CRM for SMBs to distribute your content.
What We Like
- Generates engaging email subject lines with AI
- Huge free plan (300 emails/day)
- All-in-one platform (Email, SMS, Chat)
Limitations
- Template customization can be tricky
Undetectable.ai
Make your AI content 100% human-like. Bypasses Turnitin, GPTZero, and Originality.ai easily.
What We Like
- Rewrites content to match human readability levels
- Checks against 8 different AI detectors simultaneously
- Essential for SEOs worrying about Google’s “Helpful Content” update
Limitations
- Can sometimes alter the specific meaning of complex sentences
QuillBot
The best tool for rewriting, summarizing, and reducing plagiarism risks.
What We Like
- Excellent for rewording awkward sentences
- Chrome extension is very convenient
- Plagiarism checker included in premium
Limitations
- Free version has character limits
- It rewrites, but doesn’t “humanize” as deeply as Undetectable.ai
Grammarly
Eliminate all grammar errors and make your writing professional. Your personal editor.
What We Like
- Catches mistakes that simple spell-checkers miss
- Tone detector ensures you don’t sound rude
- Works in Google Docs, WordPress, Slack, everywhere
Limitations
- Advanced style suggestions require Premium
How we chose these tools?
We tested over 15 AI writing and SEO tools including Frase, Surfer SEO, and Jasper. This list is updated for December 2025 to help marketers and writers find the best software for ranking high on Google.