Alternatives

Products that do what Why YC when there's YZ? does

The Crowd Supported, Crowd Constructed, Opened sourced Acceleration program for the next generation of builders. Note: Website is just to get feedback initially.

1. 1
   rally▲157

   A community of rejected YC founders

   2020

2. 2
   YC Library▲811

   The new hub for YC's startup videos, essays, podcasts & more

   2023 · ycombinator.com

3. 3
   YC Interviewer▲118

   Are you ready for an interview with investors?

   2021

4. 4
   AcceleratedBy▲89

   Discover the latest startups accelerated by YC and others

   2014

5. 5
   launching.today▲535

   A place to launch and share your project

   2024

6. 6
   YC Interview Simulator 2.0▲457

   YC interview prep - pitch, reflect & improve

   2024

7. 7AM
   A Map of All YC Companies (5,300 Startups by Batch and Location)▲74

   2025 · yc.foundersaround.com

8. 8
   Yapz▲201

   Build a form that talks to people like a friend for free

   2025

9. 9
   YC Mentor▲212

   Your AI mentor with YCombinator knowledge

   2023

10. 10
    LUNADIO▲252

    Turn your side project into business

    2021

11. 11IM
    I made an open source directory of where to showoff your projects▲185

    I made an open source directory for sharing projects Ever wondered how to show off that something you just built? Look no further! Awesome Launch is meant to be a list of communities and forums you can share your projects to get feedback or your first users. Anyone is free to contribute sites and resources. Hope you enjoy!

    2025 · github.com

12. 12
    YC has it▲219

    Describe your problem, get the YC startup that solves it

    Jul 2026 · ychasit.com

13. 13
    Mixergy - The YC Stories▲227

    How YC companies - Airbnb, Dropbox and more - Got Started

    2015

14. 14
    Advanced Growth Marketing Insights▲205

    Newsletter insights sourced from 100's of YC companies

    2019

15. 15
    YC-Tips▲107

    The easy way to implement Y combinator's principles

    2023

16. 16WA
    Work at a Startup – Find a Job at a YC Company▲210

    2017 · workatastartup.com

17. 17
    YC Students▲181

    Browse student jobs & internships at Y Combinator companies

    2019

18. 18
    YC Application Optimizer▲140

    Boost your app with AI trained on funded applications

    2023

19. 19YN
    YC Next, exclusive community for Y Combinator interviewees and aspirants▲32

    2015 · ycnext.com

20. 20
    LookUp YC▲143

    Ask questions and get advice from Y Combinator videos

    2023

21. 21
    KickBooster▲97

    The first affiliate program for crowdfunding campaigns

    2015

22. 22FC
    Foundertrace – chain of YC startups founded by its employees▲39

    Inspired by PG’s tweet about a chain of 4 YC startups where the founder worked at a YC startup, I vibe coded and generated these genealogy chains for all ~6k YC startups. And to make these trees easily accessible I packaged them into a hosted webapp. Few noteworthy YC startups which have had huge impact in YC ecosystem Airbnb - 83 YC startups spawned Stripe - 67 YC startups spawned Dropbox - 50 YC startups spawned Justin.tv/Twitch - 47 YC startups spawned More recently founded YC startups which have spawned a lot more YC startups Rappi - 21 YC startups spawned Brex - 20 YC startups…

    Jan 2026 · foundertrace.com

23. 23
    Work at a Startup - from Y Combinator▲179

    One common application for hundreds of top engineering jobs.

    2018

24. 24
    Startup School Live 2022▲175

    Learn how to start a startup, with help from Y Combinator

    2022

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