UtiliMax
200+ offline, privacy-first tools for Android
What it does
Contribute to zaynv213-create/UtiliMax development by creating an account on GitHUtiliMax is a collection of over 200 essential utilities and tools designed to run 100% locally on Android devices. Unlike standard cloud-based apps, it operates completely offline without requiring an internet connection or exposing your private files to external servers. It's built for speed, efficiency, and full data privacy.ub.
Contribute to zaynv213-create/UtiliMax development by creating an account on GitHub.
The Ultimate Mobile Swiss Army Knife — Powered by Kotlin Multiplatform (KMP), Jetpack Compose, and On-Device Hardware Acceleration. If you find UtiliMax useful, please support us by upvoting and sharing feedback on Product Hunt! Check out our Product Hunt Launch Kit for launch copy, maker notes, and media press kitfrom github.com
Does the same job
all alternatives →- PTPrism.Tools – Free and privacy-focused developer utilitiesJan 2026 · blgardner.github.io · ▲380
Hi HN, I'm Barry and I've built Prism.Tools (https://blgardner.github.io/prism.tools/) – a collection of client-side developer utilities that respect your privacy. Many of these tools were used way back in the days when I ran a BBS and started my communities first ISP, serving three local communities with Dial-Up Internet, Web Hosting etc. The tools have been refined to reflect the changes in tech since then and designed for the Novice and Pro alike. As I locate more tools others may find useful I will refine and add them to the collection. Use them, Share them, or not.…

- UOUtiliti – Online and OSS Utilities (Private Notes, JSON Viewer, etc.)2023 · utiliti.dev · ▲14
Hi HN! I was recently on a sabbatical and wanted to checkout the advancements in the frontend space. I would love to show you all https://utiliti.dev! I often find myself resorting to online web-based utilities, especially for things like note sharing, or viewing JSON as a tree when my IDE isn't open. Having used a few tools in the past, I was never sure what those tools were doing so I ended up building something myself and open sourced it. Highlight: I really enjoyed building private notes, an easy and quick way to share something private over email that gets destroyed on read…

- RORestfulGit – Open-source restful API for accessing Git data2013 · github.com · ▲16

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