Offline Utilities

Control your data with local dev utilities

Offline utilities for developers. Keep your business data safe and local. No data leaves your machine.

100% Offline AI Powered Dev UtilitiesData Never Leaves Your MachineSource is Shared
Local Dev Tools
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{
  "sub": "user_12345",
  "name": "Alex Chen",
  "role": "admin",
  "iat": 1704067200
}
Decoding...
Paste a JWT to decode
Decoded locally • No network requests

What's included

All your dev tools in one place

Encoders, decoders, tailwind colors, git repository tools, time wrangling tools, string tools and more. All in one place.

Powerful Local AI tools

Our AI tools support any local LM Studio models, or bring your own AI API key

Universal license

Buy a licence and use the tool on all your Mac and Windows machines.

Shared source

Dev tools is shared source, purchasers can view and contribute on GitHub.

What are Local Dev Tools?

Local dev tools are a collection of safe, offline utilities for developers. You can paste in your company's or client's data safely into tools for tasks like JWT decoding, list sorting and uri encoding.

The tools work offline so you can use your business data with confidence rather than using random websites or sending your data to AI companies. The tools work on both Mac and Windows.

We support offline, secure local AI with LM studio. If you chose to, you can use your own API keys for cloud AI (e.g. OpenAI/Google) and never transmit data to a UseMiller server.

Download Local Dev Tools (v1.74.4)

Download for free Trial. Buy a license later if you find it useful. Source available on Github.

Everything you get

  • Offline encoding and decoding tools for base64, JWT and JSON
  • Use local AI models in tools built specifically for developers
  • Save $1000's with an AI powered Marketing tool for builders and busy engineers
  • A color converter with 'nearest tailwind color' and harmonious colors feature
  • Encoders and decoders for Html and CSS Unicode characters, uri components
  • A git url parser and generator that is aware of your local ssh aliases
  • A git repo summary tool to verify user name is consistent across ssh alias related repos (work vs personal)
  • A tool to quickly parse and map timestamps in different formats, local and UTC
  • String tools - A case converter and an internationalisation aware string sorter

Buy once, use forever.

Simple pricing, pay once and use forever.

  • Mac and Windows electron apps
  • Docs and notes on usage
  • Lifetime license + get 1 year of updates for free

I use Gumroad to handle licenses. You will receive an email with a license key after purchase.

Still not sure? Feel free to ask me any questions on Twitter - @darraghor