Show HN: Visualise your 2025 Strava runs like GitHub heatmap

Ask HN: What Are You Building?

Show HN: FounderPace – A leaderboard for founders who run

YC Demo Day: I mapped out every YC company on an interactive world map

Show HN: A Map of All YC Companies (5,300 Startups by Batch and Location)

Show HN: 5k+ Y Combinator startups on a world map

This thing is hard. 8 years in. 20 failed projects. Only 2 made it

Ask HN: How do you connect with other founders in your city?

Ask HN: YC founders, would you use a map to meet other alumni nearby?

Ask HN: Who's using AI to build non-AI products?

Show HN: FoundersAround – See which founders live near you

Ask HN: Is ageism in tech still a problem?

Show HN: FoundersAround – I wanted to see where founders are, so I built this

Show HN: SubmitYourProduct.to – A List of Launch Platforms

Ask HN: Do you have a side project making more than $100 monthly?

Show HN: Find startup founders near you

Ask HN: What are you building with the new OpenAI image-gen API?

Battling Infectious Diseases in the 20th Century: The Impact of Vaccines

Show HN: Are you vibe coding? Add your tool

Here I am, 45 yo, launching another product, trying to make some money

Revenge OF THE GPT WRAPPERS: Defensibility in a world of commoditized AI models

Do you think there are well-behaved and bad-behaved bots?

Ask HN: Who's building tools for Bluesky?

Show HN: My Bluesky Facts

Show HN: Real-Time Bluesky Post Counts by Language

Show HN: Create Beautiful Bluesky Screenshots

I'm challenging Andrew’s (Acquire.com) valuation tool

'PDF to Brainrot' study tools are an iteration on a TikTok trend

Radiocast

Show HN: GiveThemLove

Show HN: Create Sound Effects from Prompts

Show HN: Create AI Dialogue Podcasts

Ask HN: What are the examples of monthly plan SaaS that should be one-off?

Show HN: RejectedByYC

Ask HN: How much is your side-project costing you?

Ask HN: Why don't calendars show "x days to event y"?

Ask HN: Who's building an AI-free product?

Show HN: Convert PDF to JPG (client-side)

Show HN: Red Blue Battle

Show HN: ToucanFX – Tell what sound effects you want. Created.

'Never-ending' UK rain made 10 times more likely by climate crisis, study says

Show HN: Rejected by YC

Show HN: Stop spending hours creating a daily recap podcast

Ask HN: Who are building a product without AI?

List of founders and companies rejected by YC

Ask HN: Have you been rejected by YC? Share your company here