SingleFile can save several pages in one go: use its browser extension to capture selected, unpinned, or all open tabs, or use its URL-list batch feature or command-line companion when you are starting from a list. Each capture is a standalone HTML page, not a recursive copy of every page or document linked from the source.
Choose how to batch-save your sources
| Route | Best starting point | What it offers |
|---|---|---|
| Browser multi-tab capture | Pages are already open in your browser | Process selected tabs, unpinned tabs, or all tabs from the extension’s context menu. |
| URL-list batch capture | You have a prepared list of page addresses | The SingleFile project site advertises batch saving a list of URLs. |
| SingleFile CLI | You want a command-line or scripted route | The project identifies a command-line companion for Windows, macOS, and Linux. |
The official sources establish these routes, but do not publish a universal maximum URL batch size or comparative speed and reliability figures. Batch-saving a URL list is not the same as recursively downloading every link found on each page.
Save several open tabs with the browser extension
- Open and load the source pages. Wait until each page has finished loading before capturing. The Chrome Web Store listing specifically advises waiting for a page to load before using the toolbar button.
- Choose the tabs to process. Open the SingleFile extension’s context menu and choose the action for selected tabs, unpinned tabs, or all tabs, depending on which pages you want to save.
- Let captures finish. The result depends on what is present in the browser page when capture runs. Content loaded later by scripts, interactions, or scrolling may not be present; behavior can vary by site, and there is no universal guarantee for dynamic pages.
- Check the destination. By default, the maintainer’s README says files go to the browser’s configured downloads folder. Confirm the filenames and open a few captures before relying on them as research records.
Batch-save a prepared URL list or use the CLI
If your sources are in a list rather than already-open tabs, the SingleFile project site advertises a URL-list batch feature and a separate command-line tool. Use the project’s official pages to select the current batch workflow and CLI instructions: SingleFile project on GitHub and SingleFile official site.
The materials establish that these options exist, but do not establish a universal maximum batch size or a command syntax that applies across all releases and setups. Check the instructions for your installed version rather than assuming a particular command or limit. The CLI is available for Windows, macOS, and Linux according to the project site.
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What a saved page contains—and what it does not
The maintainer describes SingleFile as saving a complete web page into one HTML file. Its documentation says page resources such as images, stylesheets, fonts, and frames can be included. The saved HTML can be opened in a browser without the extension, and its text can be indexed.
- It is a page capture. Saving a URL list means capturing those pages, not mirroring every linked page or downloading every linked PDF.
- It is not a guarantee of live functionality. A saved file should not be assumed to preserve every interaction, login state, or behavior of the original site.
- Check important sources. Open the saved file and verify the material you need is present. Keep the original URL and capture date with your research note.
SingleFile also has an annotation editor that can highlight text, add notes, and remove content before saving, which can help shape a capture into a more useful research reference.
Pick a format and filing system
The maintainer documents HTML, self-extracting ZIP, MHTML, Safari webarchive, and HTML-plus-folder output. They differ in how resources are packaged and in compatibility; do not assume every format opens or indexes identically across browsers. The project’s format comparison says ordinary HTML is viewable without the extension.
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For a portable research note, ordinary HTML keeps the page and captured resources together. Other formats may suit workflows that already use a particular archive or browser format. Check the format options in the version you have installed and test one file in the browser and research tools you plan to use.
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Choose where files go
The default is the browser’s download folder. The maintainer README documents Google Drive and GitHub upload settings; the current Chrome listing also describes Dropbox and WebDAV destinations. Options can differ by installed version, so inspect the settings actually shown in your extension.
Use a stable destination, descriptive filenames, and a separate note with the source URL and capture date. This makes the files easier to find and gives you the provenance SingleFile does not automatically turn into a bibliography. For a large archive, backup storage is an optional organizational choice, not a requirement of the tool.
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Make captures useful as research notes
- Keep the original address. Record the source URL next to the file, even if the page itself includes its address.
- Record when you captured it. A capture is a point-in-time copy; the capture date helps distinguish it from a later revision.
- Use annotations selectively. Add highlights or notes, or remove irrelevant content with the annotation editor, when that makes the saved source easier to revisit.
- Verify the saved copy. Open the HTML and check that the text, images, and other material important to your work survived the capture.
Troubleshooting
A capture is missing late-loading content
Wait for the page to finish loading before starting. If the site populates content after load or in response to interaction, capture results may depend on what is currently rendered; inspect the saved file and preserve the live URL for anything that did not make it into the capture.
I cannot find the saved files
Check the browser’s configured download folder first. If you have set an upload destination, inspect that destination and the extension’s current options for the installed version.
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SingleFile saves page content and resources; it does not establish that arbitrary interactive behavior, protected content, or login-dependent material will be preserved. Treat the file as an archival page copy and consult the original site when an interaction or document is absent.
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A linked PDF or another page is missing
A page capture is not a recursive site download. Save linked sources separately using an appropriate method and record their individual URLs in your notes.
A batch does not include every URL I expected
Check the list and the resulting files individually. The official materials do not state a universal URL-list limit, so avoid assuming that a large list will always complete in one operation.
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Frequently Asked Questions
Is SingleFile free to use?
The SingleFile extension is described by its project as free and open source. Its code is under the AGPL license.
Which version is listed for Chrome?
The Chrome Web Store listing checked October 2, 2026, showed version 1.28.0. That version information applies to that listing and date, not necessarily other distribution channels.
What does the Chrome Web Store say about data collection?
The store listing’s developer disclosure says data is not collected or used by the developer. This is the store disclosure, not an independent security audit.
Quick Recap
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