Support

Help with DailyUtil

Answers to the questions we are asked most, how to find your licence, and how to reach a person.

Write to us

Questions, problems and refund requests go to [email protected]. Say which version you have: it is in Settings, About.

Your licence

Your licence key and invoices are in the customer portal, where you can also cancel the yearly plan. Paste the key in Settings, Plan.

Open the customer portal

Moving to a new Mac

In DailyUtil's Settings, on the Plan page, choose "Deactivate this Mac". Then enter your key on the new Mac. One licence covers 2 Macs at a time.

The app

Using DailyUtil

See every tool

What is DailyUtil?

A native Mac app with the small developer tools you reach for every day: JSON, JWT, Base64, URL encoding, Unix time, UUIDs and hashes, in one window with search and keyboard shortcuts. It works offline, and every tool has AI help through Apple Intelligence or your own key.

Which Macs can run DailyUtil?

Any Mac running macOS 14 Sonoma or later, with Apple Silicon or an Intel processor. The download button picks the right build for your Mac, and both are on the download page. AI through Apple Intelligence needs macOS 26 on Apple Silicon; with your own key, AI works on any Mac DailyUtil runs on.

Which tools are in the app today?

Version 0.1 has seven tools: JSON Format, Base64, URL Encode, JWT Debugger, Hash Generator, Unix Time and UUID. Text Diff is next, then the Pro tools such as RegExp, Cron, YAML, Number Base and the Debug Assistant, in free updates.

Does it work offline?

Yes. Every tool runs on your Mac and needs no connection. Only AI with a cloud key, and later the network tools such as DNS lookup, go online, and only when you press their button.

Is there a web version?

Yes, dailyutil.com has free tools in the browser. The Mac app is for the tools you use all day: faster, offline, with clipboard detection, shortcuts and AI.

Privacy

What you paste, and your keys

Every connection the app makes

Does anything I paste leave my Mac?

No, not from the tools. Formatting, decoding and hashing all happen on your Mac. Text leaves only when you press an AI button with a cloud key, and then it goes straight to your provider after the secret scan.

What is the secret scan?

Before anything goes to a cloud AI provider, DailyUtil looks for API keys, private keys, tokens, JWTs and passwords in the text. If it finds any, it shows what and where, and offers to mask them, use Apple Intelligence instead, or send as is.

Where do my licence and AI keys live?

In the macOS Keychain on your Mac, and nowhere else. They are not written to a settings file and never sent to us.

What does the app send to us?

Nothing about you or what you paste. The app downloads its update file from our CDN, and asks Polar about a licence key if you have one. The privacy page lists every connection and what is sent on each.

AI

Apple Intelligence and your own key

How AI works in DailyUtil

Which AI can DailyUtil use?

Apple Intelligence on your Mac, or your own key for Claude, OpenAI, Gemini or Grok, or any OpenAI-compatible server such as Ollama or LM Studio. You pick in Settings, AI.

What can the AI do?

Explain what is in a tool (a JWT's claims, a JSON document), fix invalid input such as broken JSON, generate a sample from a few words, and answer a question about the input. A fix is shown before it replaces anything, with Undo.

Does DailyUtil have its own AI server?

No. We run no AI service and keep no AI key. Apple Intelligence runs on your Mac; a cloud key sends the request from your Mac straight to that provider.

Is a ChatGPT or Claude subscription enough?

Usually not. A chat subscription and an API key are, as a rule, billed separately. You need an API key from the provider, or use Apple Intelligence, which is free.

Plans

Plans and payment

See pricing

What is free?

Eight tools, free for good with no time limit: JSON, Base64, URL, Unix time, UUID, JWT, Text Diff and Hash, with AI on each through your own setup. Every tool in version 0.1 is free.

What does Pro add?

Every other tool as it ships, AI on all of them and the Debug Assistant, clipboard detection for every tool, and the global shortcut, Terminal command, Alfred and Raycast. Pro tools arrive in updates; a plan includes them as they land.

How many Macs does a licence cover?

2 Macs, for a work Mac and a home Mac. In Settings, on the Plan page, you can deactivate a Mac to move your licence to another one.

What happens to the lifetime price?

It is $29 for the first 100 buyers and $39 after that. Lifetime includes every update for life.

Can I get a refund?

Yes. Within 30 days of buying, write to us and ask.

Does the price include AI?

There is nothing to include. Apple Intelligence is free on your Mac, and with your own key your provider bills you directly. We sell no AI credits and run no AI server.

What happens when a yearly plan ends?

The eight free tools keep working, and so does everything you saved. The Pro tools lock until you renew.

Guides

Step by step

Longer answers for everyday developer work.

Data formats

How to Base64 encode and decode on a Mac

What Base64 is, how it differs from Base64URL, and the Terminal commands that encode and decode it on macOS without surprises.

5 min read

Data formats

How to convert a Unix timestamp to a date

Seconds or milliseconds, UTC or local time: how to turn a Unix timestamp into a real date on a Mac, on Linux and in JavaScript.

5 min read

Tokens and security

How to decode a JWT safely, without a website

Read the header and payload of a JWT offline, make sense of exp, iat and nbf, and know what decoding does not prove.

5 min read

Get DailyUtil

Put the toolbox on your Mac

Free for eight tools, with no time limit and no account. Needs macOS 14 or later on Apple Silicon and Intel.