ProfLens

Tracking since May 5, 2026.

Changelog

• Jun 4, 2026
  description

  ProfLens — Know Your Professor Before You Register
  
  Stop registering blind. ProfLens overlays RateMyProfessors ratings directly onto your university's course registration page — right next to every professor's name, right when you need it.
  
  No copy-pasting names. No switching tabs. Just instant, inline ratings while you shop for classes.
  
  ⭐ What You See
  Every instructor gets a badge showing their RMP rating, difficulty score, would-retake percentage, top student tags, and a direct link to their full profile — all in a clean tooltip that appears on hover.
  
  🏫 Works Everywhere
  Banner, PeopleSoft, Coursicle, and most other university registration systems. If your school's on RateMyProfessors, ProfLens works on it.
  
  ⚡ Smart & Fast
  Ratings are cached locally so repeat visits are instant — even after restarting your browser. No redundant lookups, no waiting around.
  
  🎯 Rating Threshold Warnings
  Set a minimum rating in settings. Any professor below your cutoff gets a red outline on their row so low-rated sections are impossible to miss.
  
  🌙 Dark Mode Ready
  Badges automatically adapt to whatever color scheme your registration page uses. Light or dark, they always look right.
  
  🔒 Private by Design
  ProfLens only contacts RateMyProfessors — nothing else. No tracking, no analytics, no data collection. Your registration activity stays yours.
  
  Getting Started
  
  Install ProfLens and pick your school from the setup screen
  Head to your registration page and click the ProfLens icon in your toolbar
  Toggle "Active on this site" — badges appear instantly
  That's it. Takes 30 seconds to set up, saves you from a semester of regret.
  
  Part of the Campus Stack suite — tools built for students, by students.
  Found a bug or want to suggest a feature? We'd love to hear from you.

  ProfLens — Register Smarter. Every Semester.
  
  Stop guessing who to take. ProfLens brings RateMyProfessors ratings directly onto your university's course registration page — live, inline, right next to every professor's name. No tab-switching. No copy-pasting. Just the information you need, exactly when you need it.
  
  ⭐ Instant Inline Ratings
  Every instructor gets a badge showing their RMP rating, difficulty, would-retake %, top student tags, and a direct link to their full profile. Hover or tap to see the full card — or use your keyboard.
  
  🎯 Make Better Decisions
  Sort sections by professor rating, compare the best and worst section of each course side-by-side, and hide rows below your rating or difficulty threshold with one click. Export your shortlist to a tab-separated schedule in seconds.
  
  ✅ Smarter Matching
  ProfLens fetches the top results from RateMyProfessors and scores them for accuracy. Confident matches show instantly. Uncertain ones flag themselves with an amber badge and let you pick the right professor — no more getting the wrong "J. Smith."
  
  📌 Favorites & Blocklist
  Found a professor you love — or one you'd never take again? Mark them directly from the badge. Your lists follow you across every registration page.
  
  🏫 Works Everywhere
  Banner, PeopleSoft, Coursicle, and dozens of other university systems — including dynamic pages that load content after the initial render. If your school's on RateMyProfessors, ProfLens finds the names.
  
  ⚡ Fast, Even Offline
  Ratings are cached locally for up to 7 days. Repeat visits are instant, even after restarting your browser. One-tap refresh when you want the latest.
  
  🌙 Light, Dark, or System
  Choose your theme in settings. Badges adapt automatically to whatever registration page you're on.
  
  🔒 Private by Design
  ProfLens only ever contacts RateMyProfessors. No tracking. No analytics. No data collection. What you register for stays between you and your university.
  
  Getting Started
  
  Install ProfLens and set your school from the welcome screen
  Go to your registration page and click the ProfLens icon in your toolbar
  Toggle "Active on this site" — ratings appear instantly
  30 seconds to set up. One less thing to regret next semester.
  
  Part of the Campus Stack suite — tools built for students, by students.
  Questions or feedback? We'd love to hear from you.

• May 28, 2026
  description

  ProfLens overlays RateMyProfessors ratings directly on your course registration page — no tab switching, no manual searching.
  
  Once you set your school, color-coded badges appear automatically next to every instructor name. Hover any badge to see their full rating, difficulty score, would-retake percentage, and review count — then click straight through to their full RateMyProfessors profile.
  
  Works on Banner, Canvas, and most college registration systems. Setup takes under a minute.
  
  Features:
  • Color-coded badges (green / yellow / red) at a glance
  • Hover tooltip with rating, difficulty, would-retake %, and review count
  • Per-site activation — only runs where you want it
  • Direct link to full professor profile
  • No account, no login, no tracking

  ProfLens — Know Your Professor Before You Register
  
  Stop registering blind. ProfLens overlays RateMyProfessors ratings directly onto your university's course registration page — right next to every professor's name, right when you need it.
  
  No copy-pasting names. No switching tabs. Just instant, inline ratings while you shop for classes.
  
  ⭐ What You See
  Every instructor gets a badge showing their RMP rating, difficulty score, would-retake percentage, top student tags, and a direct link to their full profile — all in a clean tooltip that appears on hover.
  
  🏫 Works Everywhere
  Banner, PeopleSoft, Coursicle, and most other university registration systems. If your school's on RateMyProfessors, ProfLens works on it.
  
  ⚡ Smart & Fast
  Ratings are cached locally so repeat visits are instant — even after restarting your browser. No redundant lookups, no waiting around.
  
  🎯 Rating Threshold Warnings
  Set a minimum rating in settings. Any professor below your cutoff gets a red outline on their row so low-rated sections are impossible to miss.
  
  🌙 Dark Mode Ready
  Badges automatically adapt to whatever color scheme your registration page uses. Light or dark, they always look right.
  
  🔒 Private by Design
  ProfLens only contacts RateMyProfessors — nothing else. No tracking, no analytics, no data collection. Your registration activity stays yours.
  
  Getting Started
  
  Install ProfLens and pick your school from the setup screen
  Head to your registration page and click the ProfLens icon in your toolbar
  Toggle "Active on this site" — badges appear instantly
  That's it. Takes 30 seconds to set up, saves you from a semester of regret.
  
  Part of the Campus Stack suite — tools built for students, by students.
  Found a bug or want to suggest a feature? We'd love to hear from you.

• May 28, 2026
  host_permissions

  https://*/*, http://*/*

  https://www.ratemyprofessors.com/*

Permissions & access

Permissions

storagetabs

Host access

https://www.ratemyprofessors.com/*

Screenshots