
ConvertPulse
30 free, 100% private client-side file tools & converters
What it does
ConvertPulse is a 100% free, private online utility hub. Convert markdown to HTML, change WebP to PNG, decode base64 strings, and extract audio from video instantly inside a secure, client-side local browser sandbox with zero cloud uploads.
ConvertPulse processes all file extensions, audio tracks, and code minifications 100% client-side inside a secure local browser sandbox container. Your media data never touches external cloud hosting servers, guaranteeing absolute data privacy and instant processing speeds with 0 server lag. Easily generate high-resolution downloadable QR codes, compress heavy HD videos, change WebP coordinates to PNG grids, or minify bulky development scripts entirely offline without creating an account or paying a subscriptionfrom pulse-convert-hub.vercel.app
Does the same job
all alternatives →
Softorino Online Converter7d ago · convert.softorino.com · ▲52Free & Safe online file converter. No ads. No bs.
- Offline File ConverterJul 2026 · offlinefileconverter.com · ▲8
Convert files in your browser, nothing is uploaded, ever.


ConvertItJul 2026 · convertit.vercel.app · ▲5Convert file formats without uploading them. Free, private.
More dev tools this month
the category →



Open-source GTM skills for technical founders
Dev tools · 29d ago · gtmcofounder.com

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

Launched alongside, August 2026
the whole month →- TL
Life & fun · 10d ago · louisabraham.github.io


- SA
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


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