1. Osclass

  • What it offers: A free, open-source classifieds CMS with tons of themes and plugins, multi-category support (real estate, jobs, vehicles, etc.), and active community support([Osclass Classifieds][3], [SourceForge][4], [AlternativeTo][5]).
  • Why it’s cool: Totally free, fully customizable, and purpose-built—great if you want cost-effective and scalable functionality without platform lock-in.

2. Yclas

  • What it offers: A lightweight, SEO-friendly, template-enabled classifieds platform that’s open-source and fast([AlternativeTo][5]).
  • Why go for it: More modern design and performance compared to older scripts like Osclass. It’s a neat balance between usability and autonomy.

3. GoClixy

  • What it offers: A premium tool that supports classifieds and directories, plus events, jobs, blogs, SEO tools, multi-language, SMS/payment integration, and monetization options([SourceForge][4]).
  • Why consider it: Feature-rich out of the box—great if you want a one-stop solution and don’t mind paying around ~$79/mo.

4. MarketGrabber

  • What it offers: A powerful solution specifically for classifieds and directories. Supports auto dealers, real estate, jobs, events, with advanced search and dealer import features([SourceForge][4]).
  • Why it’s dope: Built for specialized use cases like auto or property classifieds—with revenue-driven design (listing fees, ads, etc.).

5. DirectoryEngine (WordPress theme)

  • What it offers: A directory/classifieds theme on WordPress, with mobile compatibility, payment plans, ad placements, review/rating system, and more([SourceForge][4]).
  • Why you might like it: Easy to use if you’re already on WP—supports listings monetization and gives non-dev users intuitive control.

6. Templatic Directory / Lisfinity (WP themes)

  • What they offer: Templatic’s versatile directory theme (for restaurants, real estate, hotels, etc.)([SourceForge][4]); Lisfinity is a WP classified ad theme with multilingual support, listing bookmarking, loan calculators, etc.([SourceForge][4]).
  • Why they’re handy: Affordable, feature-packed WordPress options if you want fast deployment and familiar WP ecosystem.

7. phpMyDirectory

  • What it offers: Robust directory software with advanced search, payment integration, SEO-friendly design, maps, reviews, membership plans, and more([SourceForge][4]).
  • Why it stands out: Built specifically for directories but flexible—great if you want deep functionality without fully custom coding.

Quick Comparison Table

Tool / PlatformOpen-SourcePriceBest For
OsclassYesFreeClassic classifieds, budget-friendly
YclasYesFree / PaidLightweight, modern classifieds
GoClixyNoAround $79/moMultifunctional directory/classifieds
MarketGrabberNoPaidAuto, real estate directory platforms
DirectoryEngine (WP)NoPaid (theme)WordPress-based listings + payments
Templatic / LisfinityNoPaid (theme)Quick WP classifieds or directories
phpMyDirectoryNoPaidFull-featured directory with SEO tools