---
title: "A Journal That Is Just an HTML File"
description: "One self-contained HTML file. No installer. No app store. No update server. The Sealed Journal is journaling, reduced to a file."
canonical: "https://sealedjournal.com/j/journal-html-file"
category: "Use Cases"
---

# A journal that's just an HTML file.

_Open it in any modern browser. That's the whole installation._

One file means a few things at once: no installer, no permissions to grant, no app store to depend on, no update server that could one day disappear.

It also means you can read the source. The file is not minified.

It is, in the most literal sense, software you own.

## Questions

### Is the whole app really one HTML file?

Yes. Markup, styles, and unminified script in a single document you can open, read, and archive.

### Can I keep it on a USB stick?

You can, and some people do. Bear in mind the encrypted entries live in the browser store of the machine you write on.

### Will it still open in ten years?

A plain HTML file with no dependencies is about the safest bet in software for long-term openability.

## Price

The Sealed Journal is a one-time purchase of $24 (introductory price, rising to $29). No subscription, no account, lifetime updates, 30-day refund. Buy at https://sealedjournal.com/#pricing

## Elsewhere

- Hub: Use Cases — https://sealedjournal.com/journals/use-cases
- All journals — https://sealedjournal.com/journals
- HTML version of this page — https://sealedjournal.com/j/journal-html-file