Best of YC S25


best of all time best of today best of yesterday best of this week best of this month best of last month best of this year best of 2024 best of 2023 best of 2023 yc s25 yc w25 yc s24 yc w24 yc s23 yc w23 yc s22 yc w22 yc s21 yc w21 yc s20 yc w20 yc s19 yc w19 yc s18 yc w18 yc all-time 3d algorithms animation android [ai] artificial-intelligence api augmented-reality big data bitcoin blockchain book bootstrap bot css c chart chess chrome extension cli command line compiler crypto covid-19 cryptography data deep learning elexir ether excel framework game git go html ios iphone java js javascript jobs kubernetes learn linux lisp mac machine-learning most successful neural net nft node optimisation parser performance privacy python raspberry pi react retro review my ruby rust saas scraper security sql tensor flow terminal travel virtual reality visualisation vue windows web3 young talents
#1 Show HN (YC S25): Well – MCP AI-Based Collection of Invoices

8 points | 6 comments | May 02, 2025 | by maxchampoux

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#2 Ask HN: What is your backup plan in case you don't get into YC S25?

2 points | 0 comments | May 13, 2025 | by rblion

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#3 Ask HN: Why didn't your startup make the cut into YC S25?

2 points | 0 comments | Mar 08, 2025 | by Falimonda

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#4 Show HN: rtrvr.ai – New Free SOTA AI Web Agent Beats Even Operator

8 points | 2 comments | Jun 22, 2025 | by arjunchint

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#5 Supabase (YC S20) – An open source Firebase alternative

1120 points | 366 comments | May 27, 2020 | by vira28

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#6 Launch HN: Airhart Aeronautics (YC S22) – A modern personal airplane

738 points | 615 comments | Aug 05, 2024 | by n_ermosh

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#7 Launch HN: Heimdal (YC S21) – Carbon neutral cement

617 points | 220 comments | Aug 02, 2021 | by marcuslima

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#8 Fig (YC S20) – Adds IDE-style autocomplete to your existing terminal

587 points | 245 comments | May 01, 2022 | by behnamoh

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#9 Launch HN: Fig (YC S20) – Autocomplete for the Terminal

559 points | 377 comments | May 25, 2021 | by mschrage

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Web3 Jobs – Start a career in Web3

Blockchain, Solidity, Smart Contracts and Crypto Jobs

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#10 Launch HN: Lago (YC S21) – Open-source usage-based billing

442 points | 141 comments | Feb 13, 2023 | by Rafsark

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#11 Launch HN: Twenty.com (YC S23) – Open-source CRM

415 points | 311 comments | Jul 19, 2023 | by iFelix

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Don't miss when the next Dropbox or Stripe launches



#12 Launch HN: Exa (YC S21) – The web as a database

412 points | 133 comments | May 06, 2025 | by willbryk

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#13 Launch HN: CodeCrafters (YC S22) – Practice writing complex software

403 points | 206 comments | Aug 04, 2022 | by rohitpaulk

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#14 Launch HN: Slip (YC S21) – Build and sell interactive programming courses

399 points | 108 comments | Aug 11, 2021 | by CoffeePython

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#15 Launch HN: Micro Meat (YC S21) – Technology for scaling cultivated meat

390 points | 194 comments | Mar 10, 2022 | by asmertgen

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#16 Launch HN: BlackOakTV (YC S21) – Netflix for black people

377 points | 741 comments | Aug 06, 2021 | by Uzo0312

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#17 Launch HN: Sorcerer (YC S24) – Weather balloons that collect more data

365 points | 172 comments | Aug 19, 2024 | by tndl

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#18 Launch HN: QuestDB (YC S20) – Fast open source time series database

357 points | 167 comments | Jul 28, 2020 | by bluestreak

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#19 Launch HN: Hotswap (YC S21) – Easily migrate customers away from competitors

345 points | 152 comments | Aug 27, 2021 | by memset

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#20 Launch HN: Silurian (YC S24) – Simulate the Earth

338 points | 141 comments | Sep 16, 2024 | by rejuvyesh

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#21 Launch HN: Haystack (YC S24) – Visualize and edit code on an infinite canvas

328 points | 173 comments | Sep 25, 2024 | by akshaysg

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#22 Launch HN: Skyvern (YC S23) – open-source AI agent for browser automations

327 points | 74 comments | Oct 24, 2024 | by suchintan

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#23 Launch HN: Enombic (YC S20) – Create your own stock indexes

305 points | 205 comments | Feb 25, 2021 | by _eb13

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#24 Launch HN: Buoyant (YC S21) – Blimp drones for air freight

302 points | 173 comments | Aug 23, 2021 | by joefigura

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#25 Launch HN: Undermind (YC S24) – AI agent for discovering scientific papers

292 points | 126 comments | Jul 25, 2024 | by jramette

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#26 Launch HN: Stacker (YC S20) – Create Apps from Airtable or Google Sheets

292 points | 116 comments | Aug 03, 2020 | by skellystudios

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#27 Launch HN: Papercups (YC S20) – Open-Core Intercom Alternative

285 points | 85 comments | Aug 12, 2020 | by cheeseblubber

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#28 Launch HN: Diversion (YC S22) – Cloud-Native Git Alternative

280 points | 423 comments | Jan 22, 2024 | by sasham

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#29 Launch HN: Stack Auth (YC S24) – An Open-Source Auth0/Clerk Alternative

280 points | 141 comments | Aug 08, 2024 | by n2d4

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#30 Ohm (YC S15) is a smarter, lighter car battery that works with your existing car

274 points | 256 comments | Aug 12, 2015 | by blueintegral

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#31 Launch HN: Govly (YC S21) – Making it easier to sell to the U.S. government

274 points | 112 comments | Aug 18, 2021 | by mikeweiland

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#32 Launch HN: Hello (YC S22) – A search engine for developers

273 points | 199 comments | Jul 06, 2022 | by wayy

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#33 Launch HN: Artifact (YC S20) – Personal podcasts with the people in your life

266 points | 105 comments | Oct 28, 2020 | by ross_chanin

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#34 Launch HN: Jitsu (YC S20) – Open-Source Segment Alternative

265 points | 110 comments | Nov 04, 2021 | by vklmn

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#35 Launch HN: Bloop (YC S21) – Code Search with GPT-4

264 points | 125 comments | Mar 20, 2023 | by louiskw

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#36 Launch HN: GitDuck (YC S20) – Zoom for developers with real-time code sharing

264 points | 110 comments | Aug 20, 2020 | by borisandcrispin

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#37 Launch HN: Evidence (YC S21) – Web framework for data analysts

263 points | 91 comments | Aug 25, 2021 | by amcaskill

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#38 Launch HN: Reflect (YC S20) – No-code test automation for web apps

262 points | 102 comments | Jul 20, 2020 | by tmcneal

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#39 Launch HN: PeerDB (YC S23) – Fast, Native ETL/ELT for Postgres

261 points | 101 comments | Jul 27, 2023 | by saisrirampur

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#40 Launch HN: Refine (YC S23) – Open-source platform for enterprise web apps

259 points | 92 comments | Aug 09, 2023 | by civan

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#41 Launch HN: Medplum (YC S22) – Open-Source Firebase for Healthcare

251 points | 64 comments | Nov 08, 2022 | by brown

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#42 Supabase (YC S20) raises $80M Series B

247 points | 126 comments | May 10, 2022 | by yurisagalov

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#43 Launch HN: Tiptap (YC S23) – Toolkit for developing collaborative editors

246 points | 103 comments | Aug 01, 2023 | by philipisik

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#44 Launch HN: Payload (YC S22) – Headless CMS for Developers

242 points | 137 comments | Aug 31, 2022 | by sneek_

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#45 Launch HN: Scrimba (YC S20) – Interactive video for learning to code

242 points | 72 comments | Sep 24, 2020 | by mrborgen

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best of all time best of today best of yesterday best of this week best of this month best of last month best of this year best of 2024 best of 2023 yc s25 yc w25 yc s24 yc w24 yc s23 yc w23 yc s22 yc w22 yc s21 yc w21 yc s20 yc w20 yc s19 yc w19 yc s18 yc w18 yc all-time 3d algorithms animation android [ai] artificial-intelligence api augmented-reality big data bitcoin blockchain book bootstrap bot css c chart chess chrome extension cli command line compiler crypto covid-19 cryptography data deep learning elexir ether excel framework game git go html ios iphone java js javascript jobs kubernetes learn linux lisp mac machine-learning most successful neural net nft node optimisation parser performance privacy python raspberry pi react retro review my ruby rust saas scraper security sql tensor flow terminal travel virtual reality visualisation vue windows web3 young talents

andrey azimov by Andrey Azimov