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Head-to-head · Chrome Extensions

uBlock Origin vs Grammarly

  • Updated Oct 2026
  • Both researched from official sources
  • 1 check side by side
Higher score uBlock Origin #1 in Chrome Extensions 9.4/10 Free plan Free plan✓ 0 of 5 features Visit uBlock Origin
Grammarly #8 in Chrome Extensions 8.5/10 Free plan Free plan✓ 0 of 5 features Visit Grammarly

uBlock Origin leads on 0 checks, Grammarly on 0, and 1 is even. Who comes out ahead on the 1 yes/no, price and count check where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreuBlock Origin · 9.4/10
  • Free planboth

uBlock Origin scores higher on our rubric for chrome extensions: 9.4 against 8.5 out of 10; our editors rank them #1 and #8.

uBlock Origin is the better fit for powerful, configurable ad and tracker blocking. Grammarly is the better fit for writing help across browsers, apps, and services.

  • uBlock Origin fits best

    Powerful, configurable ad and tracker blocking

  • Grammarly fits best

    Writing help across browsers, apps, and services

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Side by side

Feature uBlock Origin 9.4/10 Visit ↗ Grammarly 8.5/10 Visit ↗
At a glance
Editor score 9.4 8.5
Ranking #1 in Chrome Extensions #8 in Chrome Extensions
Best for Powerful, configurable ad and tracker blocking Writing help across browsers, apps, and services
Pricing model Free Free plan + paid
Starting price Free plan $12/user/mo
Free plan ✓ ✓
Free trial — —
Deployment Browser extension Cloud, Desktop, Mobile, Browser extension
Platforms Android, Chrome extension Web, Windows, macOS, iOS, Android, Chrome extension
Support Community, Docs Docs
Built for Solo, Small business Solo, Small business, Mid-market, Enterprise
Features uBlock Origin 0/5 · Grammarly 0/5
Chrome Web Store Not checked yet Not checked yet
Offline use Not checked yet Not checked yet
Cross-device sync Not checked yet Not checked yet
Team controls Not checked yet Not checked yet
Permission details Not checked yet Not checked yet
Specs
Browser support Not checked yet Not checked yet
Our review
Pros
  • Blocks ads, trackers, pop-ups, coin miners, and malware sites
  • Custom filter lists, rules, and extended EasyList syntax
  • Element picker, dynamic filtering, and network logger
  • Checks grammar, spelling, punctuation, clarity, fluency, and tone
  • Works across browser, desktop, and mobile, with integrations for Docs and Word
  • Pro adds rewrites, plagiarism checks, and AI-generated-text detection
Cons
  • Advanced per-site filtering requires enabling advanced mode
  • Cookie-notice filters are off by default
  • Chrome Web Store distribution ended August 31, 2026
  • Pro costs $12 per user per month
  • Free includes 100 AI prompts per month
  • Enterprise adds administration controls that may exceed solo writers’ needs
Our verdict

uBlock Origin is a free, open-source browser extension for people who want detailed control over ads, trackers, pop-ups, and other unwanted content. It blocks coin miners and malware sites as well, and its filter-list approach supports…

Read the review →

Grammarly is an AI writing assistant for individuals, professionals, teams, and educational users who want help with writing across browsers, desktop apps, mobile devices, and Grammarly Docs. It checks grammar, spelling, punctuation,…

Read the review →
  1. uBlock OriginChrome Extensions 9.4Free plan
  2. GrammarlyChrome Extensions 8.5Free plan

Strengths and trade-offs

  • uBlock Origin — where it wins

    • Blocks ads, trackers, pop-ups, coin miners, and malware sites
    • Custom filter lists, rules, and extended EasyList syntax
    • Element picker, dynamic filtering, and network logger

    Where it doesn't

    • Advanced per-site filtering requires enabling advanced mode
    • Cookie-notice filters are off by default
    • Chrome Web Store distribution ended August 31, 2026

  • Grammarly — where it wins

    • Checks grammar, spelling, punctuation, clarity, fluency, and tone
    • Works across browser, desktop, and mobile, with integrations for Docs and Word
    • Pro adds rewrites, plagiarism checks, and AI-generated-text detection

    Where it doesn't

    • Pro costs $12 per user per month
    • Free includes 100 AI prompts per month
    • Enterprise adds administration controls that may exceed solo writers’ needs

More comparisons

All chrome extensions comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update