Roversia

What it does

Roversia is a free, ad-free platform of 39+ browser-based tools — calculators, converters, PDF and image utilities, productivity apps — built with vanilla JavaScript, no frameworks. Everything runs client-side where possible: no forced accounts, no ads, no tracking beyond anonymized analytics. Built and maintained solo. Includes a technical blog with real implementation notes on Firebase, PWA architecture, and browser-based AI (ONNX/Transformers.js).

• 
  Free AI ToolsJul 2026 · free-aitools.com · ▲97

  Free browser tools for everyday tasks, no login

• 
  ToolElevenJul 2026 · tooleleven.com · ▲8

  251 free browser tools. No signup, no subscription, ever.

• 
  AllDayToolkitJul 2026 · alldaytoolkit.com · ▲2

  100+ free online tools — no sign-up, runs in your browser

• 
  ToolzPediaJul 2026 · toolzpedia.com · ▲11

  37 free tools. No upload, no signup, no limits.

• 
  FreeniumToolsJul 2026 · freeniumtools.com · ▲2

  255+ free online tools. No signup. No ads. Ever.

• 
  kitzosJul 2026 · kitzos.com · ▲2

  Privacy-first web tools running entirely in your browser

• 
  Dograh▲592

  The open source VAPI alternative

  Dev tools · 25d ago · dograh.com

• 
  Meridian▲530

  Don't let your work go unnoticed. Get promoted!

  Dev tools · 20d ago · meridiona.com

• 
  x1▲516

  Lovable for iPhone apps go from idea to App Store

  Dev tools · 11d ago · x1.new

• 
  The GTM Co-Founder▲402

  Open-source GTM skills for technical founders

  Dev tools · 29d ago · gtmcofounder.com

• 
  Open-Source eInk Bike Computer▲396

  OpenTrailPaper is open-source bike computer firmware for the LilyGO T5S3 4.7" E-Paper PRO. It supports offline maps, GPX routes, FIT recording and Bluetooth sensors.

  Dev tools · 2d ago · opentrailpaper.com

• 
  Nuphos▲380

  The AI-Native DevOps Workspace.

  Dev tools · 24d ago · nuphos.ai

• TL
  The load-bearing vocabulary of Claude▲703

  Life & fun · 10d ago · louisabraham.github.io

• 
  Hey Noah▲641

  A proactive AI executive assistant for founders

  AI · Aug 2026 · heynoah.io

• 
  Clipto MCP▲640

  Let agents source clips from terabytes of your local video

  Work · 18d ago · clipto.com

• SA
  Simple algorithm and color space to generate diverse skin tones▲627

  Hello HN! I found that picking out plausible but diverse skin tones for my digital art and game development projects was kind of difficult, and I got curious about if there was a way to define a color space that made it easy. I've built a color picker and procedural generation algorithm based on the space as well as a bunch of other fun js features and demos throughout the page that use the equations. If you find it interesting, I have lots of explanations of how I built it and what properties the space has. The methodology might be a bit shaky, but hopefully the result is as helpful for…

  Life & fun · Aug 2026 · toneyalexander.github.io

• 
  AdAnt AI▲608

  Claude for viral, high-converting social ads

  AI · Aug 2026 · adant.ai

• 
  I trained a 125M model to autocomplete piano on-device▲598

  I trained a 125M-parameter transformer to autocomplete piano performances in real time (~108 notes/sec on an iPhone 15). The idea is basically GitHub Copilot or Tabnine, except instead of prompting it with code, you prompt it by playing a few notes on a MIDI piano. The model then continues what you played, entirely on-device. The app is free if anyone wants to try it. Happy to answer questions about the model, training, Core ML, or the many things that didn't work.

  AI · 17d ago · simedw.com