Underdog Accelerator

What it does

We support anyone to launch their dream startup for free! Underdog provides expert support and programs to launch and scale your dream startup. Get support from expert mentors, instant access to a global community of founders & investment to fuel your success.

Join 500+ founders in our free 10-week business launch challenge. Turn your idea into revenue with our

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  Accelerator Hunt2022 · ▲306

  The biggest startup accelerator database on the web

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  The Undefeated Underdogs Podcast2023 · ▲298

  Unpacking underdog stories of founders, creators, VCs

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  Learn Educate Discover: Starting & Running A Startup Accelerator, Jonathan Nelson, Founder @Hackers/Founders2016 · soundcloud.com · ▲55

  What goes into running a startup accelerator

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  raisefunding.io2025 · raisefunding.io · ▲11

  Find the best startup accelerator. Apply directly.

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  Growth Kung Fu Interview: How do you successfully apply to an accelerator?2016 · soundcloud.com · ▲74

  Asian Startup Growth Stories and Insights

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  Founders.Partenit2025 · founders.partenit.io · ▲40

  Find accelerators & grants for your startup (free)

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  SimCity, but with Permits▲914

  A free city-building game in your browser. You are the mayor. You know what the city needs. Now get it past the zoning board, the neighbors, the appeals court and the next election.

  Life & fun · 2d ago · permit.petercai.com

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  I've been paying for a rural Tanzanian's education for 10 years▲778

  Life & fun · 14d ago · tanzaniaeducationproject.org

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  Bigwords.page – Turn any screen into a sign. The URL is the app▲728

  Turn a phone, tablet or TV into a sign. Type a message and it fills the screen: welcome signs, timers, Wi-Fi passwords and more. No app, no account, free.

  Life & fun · 15d ago · bigwords.page

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  Guitoro, a virtual guitar you strum with your keyboard▲573

  Play a free virtual guitar online with your keyboard or by touch. Slow songs down and see every chord, string and strum. Acoustic, classic, electric and bass.

  Life & fun · 9d ago · guitoro.com

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  See *almost* any carriers phone settings▲432

  Carrier settings from iPhone, Pixel and Galaxy firmware, decoded and compared: APNs, VoLTE, 5G and Wi-Fi Calling per carrier, and what each build changed.

  Life & fun · 13d ago · carrierexplode.com

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  The whole Solar System and every tracked satellite, live in the browser▲407

  Life & fun · 23d ago · space.bl2.net

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  Resend▲1,325

  An entire collection of pre-built components with a much faster development experience.

  Dev tools · 2023 · resend.com

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  STORI AI▲1,316

  Your ideas become visually compelling branded social posts

  AI · 2023 · storiai.com

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  Kombai▲1,079

  A new AI model that you can prompt with UI designs

  AI · 2023 · kombai.com

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  User Persona Generator▲1,014

  Understand your audience without 50 interviews

  AI · 2023 · founderpal.ai

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  Lottielab▲869

  Create and ship lottie animations to sites and apps faster

  Dev tools · 2023 · lottielab.com

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  LLMs can generate valid JSON 100% of the time▲854

  Outlines is a Python library that focuses on text generation with large language models. Brandon and I are not LLM experts and started the project a few months ago because we wanted to understand better how the generation process works. Our original background is probabilistic, relational and symbolic programming. Recently we came up with a fast way to generate text that matches a regex (https://blog.normalcomputing.ai/posts/2023-07-27-regex-guide...). The basic idea is simple: regular expressions have an equivalent Deterministic-Finite Automaton (DFA) representation. We…

  AI · 2023 · github.com