Quartenson Tools

What it does

Quartenson Tools is a set of free browser-based tools for short focus and visual-attention practice. Try Schulte tables, visual search, visual memory, peripheral awareness, and reaction time exercises. Each tool supports quick, repeatable sessions with clear metrics and same-setup comparisons. For deeper Schulte practice, the Android companion adds session history, pace analysis, heatmaps, trends, goals, and achievements. Built for practice and self-comparison - not diagnosis.

Try free browser tools for Schulte tables, visual search, visual memory, story-chain mnemonics, reaction time, and peripheral awareness.

Free online exercises for memory, attention, visual scanning, and reaction time. No account required. Choose Schulte tables to find numbers in order, or Visual Search to locate a target among similar distractors. Peripheral Awareness adds a different task: notice a brief off-centre target while identifying a central line. These exercises practise different tasks, so compare results within the same tool and settings. Visual Memory tests recall of patterns and sequences. For mnemonic practice, Story Chain connects items into a story, Peg System gives them numbered cues, Chunking organizes them into groups, and Keyword Method connects a sound cue to a meaning. For a memory palace, create a…from quartenson.com

• 
  Heptabase2023 · heptabase.com · ▲443

  The visual note-taking tool for learning complex topics.

• 
  Bubbl.us2016 · bubbl.us · ▲118

  Brainstorming made simple!

• 
  Pomodoro2023 · pomodorotimer.pro · ▲120

  Focus timer & to-do list free

• 
  Dhyana2025 · apps.apple.com · ▲6

  Schulte Grid focus trainer for attention & reaction speed

• 
  MindFlow2025 · ▲7

  Visual mind mapping tool

• 
  DeepFocus2022 · apps.apple.com · ▲3

  Pomodoro tool, Help you focus to work/study.

• 
  zCAD AI▲321

  AI 3D that creates real parts, not just shapes

  Work · 12d ago · zcad.ai

• 
  Smooth Recorder▲257

  Mac screen recordings that look edited when you hit stop

  Work · 24d ago · smoothrecorder.com

• 
  Badgey▲227

  Your iPhone becomes a name badge that faces the room

  Work · 20d ago · apps.marcoluthi.com

• 
  Figma Specs▲225

  A container for your context that lives on the Figma canvas

  Work · 9d ago · figma.com

• 
  Orbit▲205

  Stop doomscrolling. Earn every app unlock.

  Work · 13d ago · apps.apple.com

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

  Work · 18d ago · readrare.com

• IR
  I replaced a $120k bowling center system with $1,600 in ESP32s▲2,935

  I might be the only SRE on Earth with his own bowling center. It's a more in-depth gig than you'd think. My family and I bought an abandoned 8-lane bowling center in the rural mid-west. In our small town there weren't many recreation options for families. You've heard of a food desert? This is an R&R desert. It had been abandoned for a good reason. The roof leaks, the electrical system was constantly surging, and my 70-year-old bowling equipment (still) doesn't work perfectly. The system that keeps your score is particularly interesting to me. It's the thing you watch during your game, but…

  Life & fun · Jul 2026

• 
  Elevators▲1,680

  How elevators push your buttons

  Life & fun · Jul 2026 · john.fun

• 
  18 Words▲1,160

  Play 18 Words, the free daily word puzzle. The official home is 18words.com. Tap Play now to open today

  Life & fun · Jul 2026 · 18words.com

• BA
  Bento - An entire PowerPoint in one HTML file (edit+view+data+collab)▲1,033

  Over the past few months, our team has been building more and more slidedecks using web frontend technologies with coding harnesses like Claude Code, but a common complaint is to make even small edits we need to edit the code either manually or via the harness. To avoid this loop, I ended up creating Bento, a single HTML file with everything you need in a slide tool including animations and shared editing. There's no install or cloud login, everything works offline. The default deck is around 560 KB and it doesn't need to fetch anything once you got it. Open it in a browser and then you can…

  Dev tools · Jul 2026 · bento.page

• 
  Getting GLM 5.2 running on my slow computer▲937

  A few days ago I found myself trying out GLM 5.2 and was really positively impressed. The capabilities and security I was getting from this LLM are similar to those I've gotten from models like Claude or GPT, and this really surprised me. But then I thought, "I wonder how it would work on a normal computer like mine," and above all, "I wonder if it would work without going into OOM on a computer like mine." So I started working with the help of agents to test this possibility. I started converting the model to int4, understanding MTP usage, and if possible implementing DSA for long context.…

  AI · Jul 2026 · github.com

• 
  OpenSEO▲928

  Hello! For the last 2 months, I've been building OpenSEO. It's a user friendly UI wrapping the DataForSEO API which has high quality SEO data for keywords, backlinks, AI SEO and competitor research. Instead of paying $100+ per month, you buy DataForSEO credits and pay only for usage. The coolest thing about the project so far has been hearing about what people are building on top of it. People are using coding agents to quickly integrate with Google Search Console, Google Ads and building their own AI SEO and reporting features. Many were already building their own custom solutions around…

  Dev tools · Jul 2026 · openseo.so