Catcode

What it does

A catcode is a hand-drawn code that can be associated with any digital content. Use catcodes to enrich your paper notes with text, links, photos, videos, etc. It works like a QR code. Simply scan a Catcode and see what's attached.

• 
  NoteThisDown2024 · note-this-down.com · ▲162

  Your handwritten notes straight to Notion. In seconds.

• 
  Barcodes2022 · apps.apple.com · ▲156

  Digital wallet for iOS that lets you scan and store tags

• 
  Papertag2022 · papertag.app · ▲71

  The paper-to-digital bookmark app

• 
  Voxpad2024 · voxpad.net · ▲125

  AI powered note taking for videos & audio

• 
  Barcode.so2023 · ▲124

  Beautiful QR codes that make your audience eager to scan

• 
  AI Note Writer API2025 · communitynotes.x.com · ▲110

  X's new experiment in AI-human collaboration

• 
  Spira Maxima▲578

  Video model that turns script into viral social media videos

  AI · 17d ago · spira.ai

• 
  Rill Browser▲540

  The browser where Claude Code and Codex work beside you

  AI · 17d ago · rill.love

• 
  Germany's new sovereign AI model Kolibri▲424

  Kolibri is Aleph Alpha

  AI · 18d ago · tej.as

• 
  Giving Opus 5.5 a simulated paint canvas▲392

  Paintings by AI models: programs run through a simulation of oil paint.

  AI · 20d ago · stillwet.art

• 
  Onepin▲384

  AI voiceover with every name, price and date said right

  AI · 30d ago · onepin.ai

• 
  PixVerse R2▲381

  A real-time world model you can explore and change

  AI · 29d ago · world.pixverse.video

• 
  Synthesia▲943

  Generate professional-looking AI videos from text in minutes

  AI · 2020 · synthesia.io

• 
  IdeasAI▲801

  OpenAI-powered startup idea generator

  AI · 2020 · ideasai.com

• 
  Tables by Google▲783

  Tables helps teams easily track & automate tasks

  Work · 2020 · tables.area120.google.com

• LS
  Linux sysadmin course, eight years on▲780

  Almost eight years ago I launched an online “Linux sysadmin course for newbies” here at HN. It was a side-project that went well, but never generated enough money to allow me to fully commit to leaving the Day Job. After surviving the Big C, and getting made redundant I thought I might improve and relaunch it commercially – but my doctors are a pessimistic bunch, so it looked like I didn’t have the time. Instead, I rejigged/relaunched it via a Reddit forum this February as free and open - and have now gathered a team of helpers to ensure that it keeps going each month even after I can’t…

  Commerce · 2020

• 
  Poolside FM for iPhone▲642

  A pool party in your pocket

  Life & fun · 2020 · cellular.poolside.fm

• 
  MakeHub 2.0▲600

  65 solo founders making $370,000/mo

  Life & fun · 2020