Avarus — Facebook Marketplace Lister

Tracking since May 28, 2026.

Changelog

• Jun 9, 2026
  host_permissions

  https://www.autotrader.com/*, https://www.cargurus.com/*, https://www.cars.com/*, https://*.cstatic-images.com/*, https://marketplace.facebook.com/*, https://www.facebook.com/*

  https://www.autotrader.com/cars-for-sale/*, https://www.autotrader.com/car-dealers/*, https://www.cargurus.com/Cars/*, https://www.cargurus.com/details/*, https://www.cargurus.com/search*, https://www.cars.com/shopping/*, https://www.cars.com/dealers/*, https://www.cars.com/vehicledetail/*, https://*.cstatic-images.com/*, https://marketplace.facebook.com/create/*, https://www.facebook.com/marketplace/create/*

• Jun 3, 2026
  description

  Turn AutoTrader inventory into Facebook Marketplace listings in minutes — not hours.
  
  Built for franchised dealership salespeople who post cars to Facebook individually. Browse your dealer's AutoTrader inventory, click one button per car, and the extension handles the rest: scrapes all vehicle data, downloads photos, generates an AI description, and auto-fills the entire Facebook Marketplace form.
  
  ── CORE POSTING FLOW ──
  • One-click posting from any AutoTrader inventory or search results page
  • Scrapes year, make, model, trim, mileage, price, colors, transmission, drivetrain, engine, fuel type, and all features
  • Downloads all photos directly from AutoTrader and uploads them to Facebook in original order (up to 20)
  • AI-generated vehicle description — editable before you publish
  • Price buffer: add or subtract a fixed dollar amount from the scraped price before posting
  • Location override: type your dealership address instead of your Facebook profile location
  • Clean title toggle: automatically checks Facebook's "clean title" field
  • Vehicle condition selector: Excellent, Very Good, Good, Fair, or Poor
  
  ── POSTING QUEUE ──
  • Add multiple cars to a queue from the inventory page without opening Facebook
  • Run the queue in bulk: Start, Pause, or Clear at any time
  • Each listing opens, fills, and waits for your review before moving to the next
  • Queue auto-publish mode for high-volume days
  
  ── AI DESCRIPTIONS ──
  • Tone options: Casual, Friendly, Professional, or Spanish
  • Custom prompt field to add your own instructions or dealership-specific language
  • Descriptions are always shown in an editable field — never auto-posted without your review
  
  ── INVENTORY AUDIT (Pro) ──
  • Tracks every car you post to Facebook in a local audit log
  • Run Audit All to re-check every listing against current AutoTrader data
  • Flags price or mileage changes the dealer made after you posted to Facebook (FTC CARS Rule compliance)
  • Detects listings removed from AutoTrader — marks them as delisted automatically
  • Mark listings as Sold manually at any time
  • Background scheduled audit runs silently every 25 minutes — one listing at a time, undetectable
  • Chrome notifications when a price change or delisted vehicle is found
  • Per-entry delete and full log clear
  
  ── POST HISTORY ──
  • Tracks all vehicles you've posted with timestamps
  • Inventory page cards get a green border (posted ≤3 days) or amber border (posted >3 days) so you never double-post
  
  ── SETTINGS ──
  • Speed mode: Conservative, Normal, or Fast (with bot-detection warning)
  • Distance unit: Miles or Kilometers
  • Category: Cars & Trucks, Motorcycles, Powersports, RVs, Boats, Commercial Trucks, Trailers, and more
  
  ── SIGN-IN REQUIRED ──
  This extension requires a licensed account. Trial accounts include 10 free postings. Paid plans unlock unlimited posting, the queue engine, and the Inventory Audit suite.
  
  ── PRIVACY ──
  All vehicle data is processed locally in your browser. Photos are downloaded to your device and uploaded directly to Facebook — no vehicle data is stored on our servers. A Firebase account (Auth + Firestore) is used solely for license verification and AI description generation.

  Post cars to Facebook Marketplace in one click — straight from AutoTrader.
  
  Avarus is a Chrome extension built for car dealership salespeople. Open any vehicle on AutoTrader, click "Post to FB," and Avarus fills the entire Facebook Marketplace listing automatically — photos, price, mileage, description, condition, and location.
  
  No copy-pasting. No re-uploading photos. No switching tabs to manually retype specs.
  
  WHAT AVARUS DOES
  
  • Auto-fills Facebook Marketplace car listing form from AutoTrader data
  • Downloads and uploads all vehicle photos automatically (blob transfer — no broken image links)
  • Generates AI-written vehicle descriptions in multiple tones
  • Posting queue — add up to 10 cars, run them back to back without clicking anything
  • Inventory audit tool — detects price/mileage mismatches between AutoTrader and your Facebook listings
  • Sold detection — flags cars that have been marked sold on AutoTrader
  • FTC compliance monitoring — alerts when listing data looks out of sync
  • Price adjustment buffer — automatically adds or subtracts a set dollar amount at post time
  • Smart Model Line detection — recognizes specialty builds (Shelby, Roush, Rocky Ridge, Alpina, etc.)
  • Location override — post from any location, not just your profile default
  
  WHO IT'S FOR
  
  - Dealership salespeople who post inventory to Facebook Marketplace daily
  - Independent car dealers managing their own lot
  - Anyone who uses AutoTrader and sells on Facebook Marketplace
  
  HOW IT WORKS
  
  1. Install Avarus and create a free account
  2. Go to any vehicle listing on AutoTrader
  3. Click "Post to FB" — Avarus opens Facebook Marketplace and fills everything in
  4. Review the AI-generated description, adjust if needed, and publish
  
  That's it. What used to take 15–20 minutes per car takes under 2 minutes.
  
  PLANS
  
  Free trial: 10 listings, no credit card required.
  
  • Basic ($49/mo) — one-click posting, AI descriptions, photo upload, queue, price buffer
  • Pro ($79/mo) — everything in Basic + inventory audit, price/mileage sync checks, FTC monitoring, sold alerts, CSV export
  
  Cancel anytime. Access continues through the end of your billing period.
  
  PRIVACY & SECURITY
  
  - No AutoTrader or Facebook credentials are ever stored
  - Photos are downloaded as blobs and never shared with third parties
  - All AI processing happens via secure Firebase Functions
  - Stripe handles all payments — card data never touches Avarus servers
  
  SUPPORT
  
  Questions? Visit avarus.app/support or email [email protected]
  
  By AVARUS

• Jun 3, 2026
  name

  AutoLister — AutoTrader to Facebook

  Avarus — Facebook Marketplace Lister

• Jun 3, 2026
  host_permissions

  https://www.autotrader.com/*, https://marketplace.facebook.com/*, https://www.facebook.com/*

  https://www.autotrader.com/*, https://www.cargurus.com/*, https://www.cars.com/*, https://*.cstatic-images.com/*, https://marketplace.facebook.com/*, https://www.facebook.com/*

Permissions & access

Permissions

storageunlimitedStorageactiveTabscriptingsidePanelalarmsnotifications

Host access

https://www.autotrader.com/cars-for-sale/*, https://www.autotrader.com/car-dealers/*, https://www.cargurus.com/Cars/*, https://www.cargurus.com/details/*, https://www.cargurus.com/search*, https://www.cars.com/shopping/*, https://www.cars.com/dealers/*, https://www.cars.com/vehicledetail/*, https://*.cstatic-images.com/*, https://marketplace.facebook.com/create/*, https://www.facebook.com/marketplace/create/*

Screenshots