Utilities / UTL-01 Runs in your browser
Bulk URL Opener: Open a Whole List of Links in Tabs at Once
Paste a messy list of links, get it cleaned and de-duplicated, then open it in tabs a batch at a time so the popup blocker does not swallow most of them.
Utility UTL-01 Batched to survive the popup blocker
Quotes, angle brackets and trailing commas are stripped. A missing https:// is added.
Each press counts as one user gesture, which is what browsers meter.
- Links found
- 0
- Opened so far
- 0
- Skipped lines
- 0
What the browser is actually enforcing
Opening a window from script is only allowed while the browser considers itself to be handling a user action. Click a button and the page gets a short window in which calls to open a tab are honoured; outside that window they are refused.
The refusal is silent. No error, no dialog, nothing in the console on most browsers; the call simply returns nothing and the tab never appears. That silence is why so many bulk openers seem broken: they issue twenty calls, three land, and nothing explains the other seventeen.
Batching sidesteps it honestly. One press, one gesture, a small number of tabs, and a counter telling you where you are in the list. Slightly more clicking, and the full list actually opens.
Cleaning the list before anything opens
Real lists arrive dirty: wrapped in quotes from a spreadsheet, wrapped in angle brackets from an email client, trailing commas from a JSON array, mixed with blank lines and stray labels.
The parser splits on line breaks, commas and semicolons, strips surrounding punctuation, prefixes https:// where no scheme is given, and then requires each candidate to parse as a URL with a plausible hostname. Anything that fails is counted rather than silently dropped, so a skipped count above zero tells you to look at the input again.
De-duplication is on by default because pasted lists so often repeat. It compares the full address, so two URLs differing only by a tracking parameter both survive. That is deliberate, since one may redirect somewhere the other does not.
Where a bulk opener is the right instrument
Checking a redirect map after a migration: paste the old addresses, open them in batches, and watch where each lands. Twelve tabs is faster to scan than twelve sequential loads.
Verifying that a set of pages renders at all after a deploy. Reading a list of links from a document without copying each one. Working through a backlink export where you need to see the referring pages rather than just their status codes.
What it is not good for is anything you repeat daily. A bookmark folder does that better: most browsers open an entire folder in tabs from its context menu, with no popup metering at all, because the browser itself is doing the opening.
The referrer, and why it sometimes changes what you see
A link opened from this page arrives at its destination carrying a referrer — the browser tells the target site which page sent you. That is normal, and for most checks it is irrelevant.
It stops being irrelevant in two situations. Some sites vary what they serve by referrer, so a page you reach from an unfamiliar domain may look different from the same page reached from a search result. And if you are opening your own pages, every one of those visits lands in your analytics as traffic from an unexpected source, which can quietly pollute a report you are about to read.
Neither is a reason to avoid the tool. It is a reason to filter your own IP address out of analytics before doing a large sweep, and to remember, when a page renders oddly, that the referrer is one of the variables you changed.
Tabs, memory, and knowing when to stop
Fifty open tabs will make most machines unhappy, and a browser under memory pressure starts discarding background tabs, which means some of what you opened is no longer loaded when you get to it.
Twenty at a time is a sensible ceiling for scanning. If the list is genuinely long, work in sections and close each group before opening the next — the counter above keeps your place, so you can stop and resume without losing track.
Every tab is opened with the noopener relationship set, so the new page cannot reach back into this one. That is standard hygiene rather than anything unusual, and it costs nothing.
Questions people ask
Why does only the first tab open sometimes?
The popup blocker. Browsers allow a page to open new windows only in direct response to a click, and most of them permit a small number per click before refusing the rest silently.
That is why the tool works in batches. Each press of the open button is one user gesture, and the batch size is deliberately small enough to stay inside what browsers accept. Press it again for the next group.
Nothing opens at all. What do I check?
Look for a blocked-popup icon in the address bar and allow popups for this site. In Chrome and Edge it appears at the right-hand end; in Firefox a bar drops down from the top.
A blanket popup block set in an extension will override the site permission, so if the setting looks correct and it still fails, check whether an extension is doing it.
Does it work on a phone?
Partly. Mobile browsers keep far fewer background tabs and several ignore programmatic window opening entirely. One or two links may open; a batch of ten will not.
Copying the cleaned list from the box and using it wherever you actually need it is the better path on mobile.
What happens to lines that are not links?
They are counted and dropped. The parser splits on line breaks, commas and semicolons, strips surrounding quotes and angle brackets, adds https:// where a scheme is missing, and requires something that looks like a hostname.
That means you can paste a spreadsheet column, a chunk of a sitemap, or a messy email without cleaning it first. The skipped count tells you if something was lost.
Can I open the same list every day without re-pasting?
The list is not stored, so no. Nothing you paste is kept, which is the trade for there being no account and no server.
For a list you use daily, a browser bookmark folder is the better tool: most browsers can open a whole folder in tabs from its context menu, with no popup limit involved.
Is anything I type sent anywhere?
No. The tool runs in this page and there is no server behind it, so nothing you type is transmitted, logged or stored. Disconnect from the network, reload from cache, and it still works.