SingleFileZ vs ScrapBook X for Organizing Offline Webpage Archives

SingleFileZ and ScrapBook X solve different parts of offline archiving. SingleFileZ creates a self-extracting HTML/ZIP hybrid for an individual page. ScrapBook X was a Firefox add-on for organizing a browsable collection of captured pages, with features such as search and annotations. If your main need is managing a modern browser-based archive, ScrapBook X is legacy software; its maintainers point to WebScrapBook as its successor.

The practical choice depends on whether you need a portable file for each page or tools for retrieving and managing many saved pages. The two are not direct substitutes.

1. What each tool is for

SingleFileZ: a page archive format

SingleFileZ saves a webpage and its resources in one self-extracting HTML/ZIP hybrid. The archive can contain resources such as images, fonts, stylesheets, and frames. Its purpose is to make a page’s resources travel together in a single file, with the option to extract the ZIP contents.

There is an important project-status detail: the SingleFileZ project README says it has been completely merged into SingleFile and directs readers to SingleFile’s self-extracting file-format option. In other words, consider the format through the current SingleFile project rather than treating SingleFileZ as a separate current project.

ScrapBook X: a collection manager

ScrapBook X was built around a collection of saved pages. Its documented features include capturing a whole page or a selection, arranging saved items, full-text search and filtering, annotations, and import/export. Those capabilities address the problem of finding and working with many captures over time.

Its maintainers classify ScrapBook X as legacy, say they will not implement WebExtension support, and identify WebScrapBook as the successor for modern browser extension support. The repository’s latest listed ScrapBook X release is dated August 24, 2019. That history is not proof of compatibility with a particular browser version; check the project’s current documentation and your browser before relying on it.

2. Side-by-side comparison

Need	SingleFileZ format	ScrapBook X
Primary job	Save one page and its resources in a self-extracting HTML/ZIP hybrid.	Capture and manage a collection of pages.
Many-page organization	The file format itself is not a collection manager.	Documented collection organization, search, filtering, and annotation.
Offline opening	Opening the self-extracting format requires JavaScript. The FAQ notes additional local-file constraints in Chrome.	Collection-oriented workflow; confirm the extension and collection behavior in the browser you intend to use.
Extracting resources	The HTML file is also a ZIP archive, so resources can be extracted.	Designed around captured items and collection management rather than this self-extracting file format.
Project status	The project says it was merged into SingleFile.	Classified as legacy by its maintainers; WebScrapBook is identified as its successor.
Best fit	A page-by-page portable archive where resources should be bundled together.	A historical workflow centered on browsing, searching, and annotating a collection.

3. Choose by the archive workflow you need

Choose the SingleFile self-extracting format when

You want one file per page that carries its resources with it.
You may need to extract the page’s bundled resources.
You accept that opening this format depends on JavaScript and may need browser-specific local-file configuration.
You can manage the files using your own folders, filenames, or indexing workflow.

Consider a collection tool when

You save enough pages that browsing a tree or collection is more useful than opening files one by one.
Full-text search, filters, annotations, or import/export are important to retrieval.
You have checked that the collection tool supports your current browser and that you can move your archive if you later change tools.

For a new browser-based collection workflow, assess WebScrapBook because ScrapBook X’s maintainers name it as the successor. The dossier does not establish the successor’s present feature parity or compatibility details, so verify those against its own current documentation before migrating or choosing it.

4. Offline opening and compatibility details

SingleFileZ’s self-extracting format has a tradeoff: the SingleFileZ FAQ says JavaScript must be enabled to open saved pages. It also says Chrome may require an extension or command-line switch to open the format as a local file, and that saving and opening take longer than with SingleFile. Browser security behavior and extension support can change, so check the current SingleFile documentation and your browser’s local-file rules.

SingleFile distinguishes ordinary HTML output from self-extracting formats: ordinary HTML does not require JavaScript to open, while self-extracting formats have browser-specific conditions. If easy local opening is your priority, compare the output formats in the SingleFile README and choose based on the browser and archive behavior you need.

ScrapBook X’s historical documentation can explain its collection concepts, but it should not be read as confirmation that the add-on works in a current browser. Its maintainers explicitly describe it as legacy and say they will not add WebExtension support.

5. A practical selection and migration checklist

Define the unit you need to retrieve. If it is an individual page file, evaluate SingleFile’s self-extracting format. If it is a searchable collection, evaluate a maintained collection workflow.
Test representative pages. Include pages with images, fonts, frames, and the interactions or dynamic content that matter to you. No archive format guarantees that every live site feature will work offline.
Test local opening on the target machine. Check JavaScript settings, local-file restrictions, and the browser you expect to use. Do this before archiving a large collection.
Plan retrieval. Pick a naming and folder scheme, or confirm that your collection manager supports search and filtering for your archive.
Keep a migration path. Before importing an existing ScrapBook X collection elsewhere, preserve a backup and verify that representative items, annotations, and metadata survive the transfer.
Separate preservation from sharing. Keep a local copy if long-term access matters. SingleFile documents optional destinations such as Google Drive, Amazon S3, GitHub, and WebDAV; these are storage workflows, not collection-management replacements.

6. Common problems and fixes

Symptom	Likely cause	What to check
A SingleFileZ page does not open correctly as a local file.	The self-extracting format needs JavaScript, or the browser restricts local-file behavior.	Enable JavaScript where appropriate, consult the FAQ for the browser-specific Chrome condition, or use an ordinary SingleFile HTML format if its behavior better matches your needs.
Opening a self-extracting archive feels slow.	The SingleFileZ FAQ says saving and opening take longer than with SingleFile.	Try the ordinary HTML output if extraction is unnecessary, and test with representative pages before choosing a format for a large archive.
A saved page is missing a resource or does not behave like the live site.	An offline copy is a capture of a page, not the original running site; some content or behavior may depend on remote services or runtime conditions.	Inspect the archive’s included resources and recapture the page if needed. Keep expectations focused on the content and resources actually saved.
ScrapBook X cannot be installed or used in a current browser.	It is a legacy add-on, and its maintainers say WebExtension support will not be implemented.	Check current compatibility before attempting setup. Assess WebScrapBook as the named successor and verify its current migration and feature documentation.
A collection import is incomplete.	Import/export and migration can depend on the source collection and the destination’s supported data.	Keep the original backup, import a small sample first, and check pages, annotations, and metadata before moving the full archive.

7. Performance, reliability, and storage costs

The available project documentation provides no comparative benchmark for capture speed, archive size, or reliability, so there is no evidence-based speed ranking. The SingleFileZ FAQ does give a qualitative warning: saving and opening its hybrid format take longer than with SingleFile. Actual time and file size depend on the page and its resources.

For reliability, test the pages and browsers that matter to your workflow, retain a backup, and avoid assuming an old extension will remain compatible. A single self-contained file simplifies moving a page’s bundled resources, while a collection manager offers retrieval features that a file format alone does not provide.

There is no required physical product or paid storage service established by this comparison. If you choose remote storage or hosting, treat it as an optional destination and check its own costs, retention, and access terms.

8. ScreenshotNeo for capturing current pages

SingleFile and scrapbook tools are for creating offline archives. If you need a rendered screenshot of a current page for documentation, visual review, or an agent workflow, ScreenshotNeo is a separate website screenshot API and MCP server from Yorker Media. It does not replace an offline page archive.

curl -G "https://api.screenshotneo.com/v1/shot" -d access_key=YOUR_API_KEY --data-urlencode url=https://stripe.com -o shot.webp

See the ScreenshotNeo API documentation for the request options. Python and Node.js examples are also available:

import requests

r = requests.get(
    "https://api.screenshotneo.com/v1/shot",
    params={"access_key": "YOUR_API_KEY", "url": "https://stripe.com"},
    timeout=90,
)
open("shot.webp", "wb").write(r.content)

const q = new URLSearchParams({ access_key: 'YOUR_API_KEY', url: 'https://stripe.com' });
const res = await fetch(`https://api.screenshotneo.com/v1/shot?${q}`);
if (!res.ok) throw new Error(`Screenshot request failed: ${res.status}`);
await Bun.write('shot.webp', res);

The Node.js example uses Bun’s file-writing helper to save the response. In Node.js, use the built-in filesystem API to write the response bytes:

import { writeFile } from 'node:fs/promises';

const q = new URLSearchParams({ access_key: 'YOUR_API_KEY', url: 'https://stripe.com' });
const res = await fetch(`https://api.screenshotneo.com/v1/shot?${q}`);
if (!res.ok) throw new Error(`Screenshot request failed: ${res.status}`);
await writeFile('shot.webp', Buffer.from(await res.arrayBuffer()));

ScreenshotNeo removes cookie banners, newsletter popups, and chat widgets before the shot; each cleanup step can be turned off. Bot checks, blank pages, timeouts, failed loads, and cache hits cost nothing, with response headers indicating the page verdict and billing status. Its MCP server provides screenshot, page information, and PDF capture tools for AI agents. The API supports PNG, JPEG, WebP, and PDF, along with options such as full-page or selector capture, device and viewport settings, wait conditions, custom CSS or JavaScript, request blocking, caching, and asynchronous jobs. Plans include 1,000 screenshots per month free with no card; paid plans start at $5 for 3,000 shots. See the docs for configuration details, then sign up for 1,000 free screenshots a month, with no card.

FAQ

Is SingleFileZ still a separate project?

The project README says it has been merged into SingleFile and points to SingleFile’s self-extracting format option.

Does a SingleFileZ archive open without JavaScript?

No. The SingleFileZ FAQ says JavaScript must be enabled to open its saved pages.

Is ScrapBook X the same as WebScrapBook?

No. They are distinct projects; ScrapBook X’s maintainers identify WebScrapBook as its successor.

Which should I use to organize thousands of pages?

A collection workflow with reliable organization and search is the relevant category. Evaluate a maintained option and test import and retrieval with a sample of your own archive.