Whose Number Is This?

What it does

Stop wondering who's calling you. Who Number Is This is a fast, reliable reverse phone lookup service that helps you identify unknown callers instantly. Whether it's a potential scammer, telemarketer, or someone you actually want to talk to.

Find out who

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  Scam Number Lookup2025 · ▲18

  Lookup suspicious numbers. report scams. protect everyone

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  SpyDialer2022 · spydialer.site · ▲104

  All digital data about any US phone number

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  Caller ID : True Number SearchNov 2025 · apps.apple.com · ▲6

  Identify unknown calls & spam

• DM
  Doxx Me – See how doxxable your phone number is2022 · app.efani.com · ▲98

  I built this tool that checks publicly available data against your phone number. I was surprised how one my numbers (which I text and sign up for services with) has a lot of information attached to it including my full name, all previous addresses, relatives, emails, and more.

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  PhonesLookup.com2020 · unstoppable.ai · ▲2

  Phones numbers revers lookup - Answer your phone safely

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  check who called2023 · play.google.com · ▲1

  Check unknown numbers and find out who is calling

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  Lofi Cities – Pixel-art city nights with browser-generated lofi▲319

  Endless lofi beats composed live in your browser, over pixel-art nights in Paris, Tokyo, New York, Hong Kong, Sydney, San Francisco and more. Free, no sign-up.

  Work · 25d ago · loficities.com

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  Smooth Recorder▲257

  Mac screen recordings that look edited when you hit stop

  Work · 19d ago · smoothrecorder.com

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  Figma Specs▲223

  A container for your context that lives on the Figma canvas

  Work · 4d ago · figma.com

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  The rarest tech books and docs you've probably never read▲190

  Work · 13d ago · readrare.com

• IM
  I'm an airline pilot – I built interactive graphs/globes of my flights▲1,539

  Hey HN! Pilots everywhere are required to keep a logbook of all their flying hours, aircraft, airports, and so on. Since I track everything digitally (some people still just use paper logbooks!), I put together some data visualizations and a few 3D globes to show my flying history. This globe is probably my favourite so far: https://jameshard.ing/pilot/globes/all If you’ve got ideas for other graphs or ways to show this kind of data, I’d love to hear them!

  Life & fun · 2025 · jameshard.ing

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  Chronicle: Cursor for Slides▲1,212

  Stunning presentations with AI. No design skills required.

  AI · 2025 · chroniclehq.com

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  Bubble for native mobile apps (beta)▲1,026

  Build native mobile apps for iOS and Android without code.

  Dev tools · 2025 · bble.io

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  Twenty▲989

  Build your Enterprise CRM with an AI-friendly SDK

  Dev tools · 2025 · twenty.com

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  Pally - AI Relationship Management▲949

  All your connections, across all your socials.

  AI · 2025 · pally.com

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  Workout.cool – Open-source fitness coaching platform▲827

  I was the main contributor to workout.lol, an open-source fitness app to easily build a workout routine. The project had traction (1.4k GitHub stars, 95 forks, ~20K visits/month), but was eventually sold due to video licensing hurdles. The new owner stopped maintaining it, and the repo went abandoned. Over the next 9 months, I sent 15 emails to try to save it : no replies. Feature requests & issues were ignored. The community was left with a "broken" tool let's say. I couldn't just let it die So I built the new version from scratch with the same open-source spirit, but a better…

  Dev tools · 2025 · github.com