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Description from extension meta
Mostrar/Eliminar marcadores duplicados o carpetas vacías
Image from store
Description from store
# bookmarkdupes
(C) Martin Väth <[email protected]>, <[email protected]>
This project is under the GNU Public License 2.0.
A WebExtension which can display/remove duplicate bookmarks, empty folders, or descriptions
After installing bookmarkdupes, the usage is rather simple:
To open bookmarkdupes, click the extension symbol (duplicate stars) or
use the link in the options page of the extension.
**Do not enable “Expert Mode”** (unless you fully understand the consequences,
see separate section).
Then select what you want to display:
1. Bookmark duplicates
2. Empty folders
3. Non-duplicate bookmarks
After this, you will be offered the list of bookmarks with checkboxes;
in case 1 the numbers indicate the order in which matching bookmarks
were added according to the internally stored date.
There are also buttons to select/unselect convenient sets of checkboxes.
Finally, there are buttons to remove the selected bookmarks.
**Be aware that removing bookmarks is irreversible!**
*It is recommended to make backups of your bookmarks first!*
Currently, there is no working version of the extension available for android
(see section **Known Bugs**).
## Important
When you reorganized/added/removed bookmarks, make sure to update the
displayed list (by pressing the corresponding button) before removing
bookmarks!
## Permissions
The extension requires the following permissions for these reasons:
1. “bookmarks” to read/modify bookmarks
2. “storage” to store/restore the customized rules in expert mode.
Unfortunately, “storage” is not one of the optional permissions which might
be required only if that feature is actually requested by the user.
## Expert Mode
When selecting the checkbox for expert mode, details can be configured to
ignore certain bookmarks when calculating the list or under which cases
bookmarks are considered to be dupes of each other.
In non-expert mode, two bookmarks are considered to be duplicates of each
other if their URL coincides.
In expert mode there are custom rules by which the URL which is actually
used for comparison is to be modified. The details are as follows.
For every bookmark the rules are applied in the given order.
There are 2 types of rules: Filter rules and URL modification rules
(there are also disabled rules which are only listed but have no effect).
For both types of rules 4 regular expressions can be specified which are used
to determine if the rule applies: If the corresponding regular expression is
nonempty, the corresponding condition must be satisfied or the rule will not
apply. (In the case of filter rules, at least one of these 4 regular
expressions must be nonempty or that filter rules will not apply either.)
The 4 regular expressions refer to the bookmark's name or url, respectively,
and the regular expressions must either match or not match, respectively.
- The term “regular expression” refers to a javascript type regular expression.
- The bookmark's name refers to the full bookmark path as it appears in the
browser with folder names separated by the null character.
For instance, if you have in “Bookmark Menu” a folder “Collection”
which contains your bookmark "Example", the bookmark's name becomes
`Bookmark Menu\0Collection\0Example` (where `\0` denotes the null character
which can be matched by the regular expression with `\0` or `\x00`).
- The bookmark's URL refers to the bookmark URL after possible modifications
by previous modifier rules.
If a filter rule applies, the corresponding bookmark is ignored, i.e.,
it will not be considered as a duplicate and will neither appear in the
list of empty folders nor of all bookmarks.
If a URL modification rule applies, a text replacement will occur:
All parts matching a specified regular expression are substituted by a
replacement text (which might be empty).
The rules for this correspond to the javascript String.prototype.replace
function with the global modifier.
In particular, the replacement text can contain symbols like
`$&` or `$1` to refer to the whole matched text or to the
match of the first brace in the regular expression, respectively.
The following 5 replacement texts have a special meaning which goes beyond
the standard javascript replacement rules.
Note that this special meaning is only active if this is the full replacement
text. In other words, to get the special meaning, the replacement text must not
contain anything else than these 4-6 characters.
(This does not really restrict the functionality, because one can combine
several rules to work around that limitation if necessary.)
1. `\L$&` is the match in lower case.
2. `\U$&` is the match in upper case.
3. `$URL` is the url before any other rules have been applied.
4. `$NAME` is the bookmark's full name/path with folders separated by the
null character, e.g. “Bookmark Menu\0Collection\0Example”
5. `$TITLE` is the bookmark's title without the path; for instance, for the
bookmark name “Bookmark Menu | Collection | Example” it is “Example”.
## Examples for special tasks which can be done in Expert Mode
### Task
1. Consider two bookmarks as duplicate if their URL differs only in `https:` vs. `http:` at the beginnning.
2. Consider two bookmarks as duplicate if their URL matches up to the first `?` symbol, i.e. only their additional information differs.
3. Do not consider any bookmark from any folder named ``Mr. Dupe`` as a duplicate.
4. Add all bookmarks to the list of duplicates, whether duplicate or not.
5. Add all bookmarks from the folder `Bookmark Menu | Remove` to the list of duplicates (no matter whether they actually are duplicates).
6. Consider two bookmarks as duplicate if they have the same name (instead of the same URL).
7. Consider two bookmarks as duplicate if they reside in the same folder.
### How to do the above tasks in Expert Mode
1. Use the replacement rule: “Replace URL matches” `^http:` “by” `^https:`
Explanation: By replacing everywhere the URL beginnning with `http:`
by `https:`, it does not matter whether the actual URL started with `http:`
or `https:`. Of course, we could have exchanged the roles of `http`
and `https` in our rule.
2. Use the replacement rule: “Replace URL matches” `\?.*` “by” ` ` (empty string)
Explanation: Simply omit the ? symbol and all other symbols following it
in all URLs.
3. Use the filter rule: “Name matches” `\0Mr\. Dupe\0` or `\0Mr[.] Dupe\0`
Explanation: If a bookmark is in a folder named “Mr. Dupe”, its full name (path) will contain the text “\0Mr. Dupe\0”; so match that text. Since the “.” symbol has a special meaning for regular expressions, we have to quote it. This can be done by either `\.` or by looking for a character class `[…]` which contains only the single symbol `.`.
4. Use the replacement rule: “Replace URL matches” `.+` “by” `constant`
Explanation: Pretend that every bookmark has the URL `constant` by replacing all characters (`.+`) of the original URL by that text.
5. Use the replacement rule: “Name Matches” `^Bookmark Menu\0Remove\0` “Replace URL matches” `.+` “by” `constant`
As in 4, but only for bookmarks whose full name starts with the matching path.
This works only if the folder contains at least 2 bookmarks (because otherwise `constant` is not a duplicate URL). Of course, one might use an actually duplicate URL instead of `constant` to work around this limitation.
6. Use the replacement rule: “Replace URL matches” `.+` “by” `$TITLE`
Explanation: Replace all bookmark URLs by the corresponding bookmark title when looking for dupes.
7. Use the replacement rule “Replace URL matches” `.+` “by” `$NAME` followed by a further replacement rule “Replace URL matches” `[^\0]*$` “by” ` ` (empty string)
Explanation: First replace the URL by its full name path, and then omit the last component of this path by cutting of the longest sequence of non-`\0`-symbols at the end.
## Contributors
(in alphabetical order)
- Henaro aka Ironwool (Russian and Ukrainian translation; redesign icon in svg; provide favicon)
- Juan Salvador Aleixandre Talens (Spanish translation)
- YFdyh000 (Simplified Chinese translation)
Latest reviews
- (2025-06-25) Gabriel Tune: I tried most other similar bookmark management extensions on Chrome and this was the only one which gave me the control to deal with the aftermath of Chrome's bookmark duplication glitch. Thank you devs! -Easily remove duplicate bookmarks -Removes empty folders -Options when bulk selecting and deleting duplicate bookmarks
- (2025-02-21) André de Jager: Does a great job! Finds and removes duplicates bookmarks and removes empty folder.
- (2025-01-25) Norman Grillo: T O P !
- (2025-01-18) Rafaela: Finally an extension that does what it says easily, quickly, intuitively, for free and without registration!
- (2025-01-08) Ira White Jr.: By far the best and easiest to use to find and delete duplicate bookmarks, I've tried the others and it was either too complicated or it didn't select the dupes for you.
- (2024-12-31) Colin Domoney: Take a bow, fella - what a genius piece of work. I'd munged my bookmarks between Chrome and Brave and trying to sort this out inevitably led to more bookmarks that I could possibly imagine, and this sorted it out. Brilliant, just brilliant.
- (2024-11-15) Dr. rishabhkrm: absolutely brilliant. -can auto select duplicates in each group based on new/old simple, minimal, does what it says. THANK YOU!
- (2024-10-29) Shininess9632 Jj: top 1 best one
- (2024-10-02) Junaid Eqbal: nice tool super fast
- (2024-09-20) kris: Not working, views and duplicates, doesn't allow user view of links but it's not removing selected bookmarks either, it just freezes.
- (2024-09-20) Arunav Roy: One of the best extension i asked for found so easily, Thank you.
- (2024-09-18) liu liu: nice tool
- (2024-07-29) Somebody: Has all the options you need, ordered well in a simple manner and also really fast!
- (2024-07-22) Mark Buell: It. Works. Does exactly what it says it will do: locate duplicates and empty folders, and allows you to remove them. Quick and easy.
- (2024-06-20) Ums: Actually has a SELECT ALL button and can remove ALL dupes I want, so good
- (2024-06-02) Reetesh Vadodaria: Extremely fast and easy to use; checked for duplicates and empty folders in a jiffy.
- (2024-06-02) WeiHua Liu: Do its job well. Previewing duplicated bookmarks before deleting.
- (2024-05-26) S H: a dupes deleter that actually works
- (2024-05-15) Rui Sousa: Although it may not win any awards for its UI, let's be honest, this extension surpasses all others in terms of features by a significant margin. Here are some standout features that I haven't seen in other extensions: - Automatic duplicate selection - Bulk removal of selected duplicates (It's astonishing that other extensions lack this basic functionality, forcing users to tediously remove duplicates one by one) - Intuitive selection options such as "Mark all but first", "Mark all duplicates in the same group except those in a specified folder" or "Mark all except the newest one in each group." These features not only elevate this extension above any others I've tried but also streamline my bookmark cleaning process significantly.
- (2024-04-03) KC Yang (KC): Not suitable for my need.
- (2024-03-24) Raza Attaie: Such a good extension. Thanks mate.
- (2024-03-18) Tran He: don't know why my bookmarks are merged with an older save, everything got duplicates, this is great!
- (2024-03-14) Lars Hammarstrand: Exactly what I was looking for!
- (2024-02-29) Riia Jarvenpaa: Thanks! Does exactly what is says.
- (2024-02-23) Tim Knight: After many many years of having chrome duplicate my browser bookmarks, I had thousands upon thousands and this extension made it super easy and efficient to sort, delete, and retain only the ones I wanted. 5 star rating isnt good enough.
- (2024-02-10) J S: Excellent. Easy to use.
- (2024-02-03) lauren P: Worth using! I've tried several & this is one of the best ive found!
- (2024-01-13) Robert Urbanek: Finally something worth having. Promise the functionality and went way beyond it.
- (2024-01-10) Vijay V: I don't write a lot of reviews for products, unless they are truly great and add value to the user. I've tried lots of tools and this one is simple, light, and efficient. Does exactly what it says it will do - I cleaned up over 4000 duplicate bookmarks in a matter of minutes from 25k bookmarks, which is insane. The ui is clean and light. I love this and would definitely recommend. If the same tool existed for the other browsers(Safari, edge, firefox) then it would be the absolute best and I wouldn't mind paying for it.
- (2024-01-08) Dustin Nelson: Run multiple times across multiple browser bookmark/favorite imports/unions and not a single item identified/deleted in error, even as a possibility. Perfect (no, srsly, perfect!)
- (2024-01-07) Snowgold Butterfly: Perfect. The logo is also great. This add-on is really light, quick, and effective. It's possible to auto-select all the dupes. Perfect really.
- (2023-11-01) Hambone Designs: Does exactly what you think it should. Love this.
- (2023-11-01) Hambone Designs: Does exactly what you think it should. Love this.
- (2023-10-26) 郭奇异: you saves my life!
- (2023-10-26) 郭奇异: you saves my life!
- (2023-10-24) Helar Kallas: Thanks!!! Deleted 45K of duplicates from 20+ years with 0 effort. Tried several other tools but they were rather pointless, like having to select each bookmark manually?! :D
- (2023-10-24) Helar Kallas: Thanks!!! Deleted 45K of duplicates from 20+ years with 0 effort. Tried several other tools but they were rather pointless, like having to select each bookmark manually?! :D
- (2023-10-11) fruck wheeled: Allowed me to find and conveniently move NON duplicate bookmarks from several imported bookmark folders, fast easy awesome compared to the un-intuitive and low capability competition. Thanks.
- (2023-10-11) fruck wheeled: Allowed me to find and conveniently move NON duplicate bookmarks from several imported bookmark folders, fast easy awesome compared to the un-intuitive and low capability competition. Thanks.
- (2023-09-26) Wesley Moy: Exactly what I needed. The extension provided all the options I needed to clean up my duplicates surprisingly quickly and with a clear understanding what I'm doing.
- (2023-09-26) Wesley Moy: Exactly what I needed. The extension provided all the options I needed to clean up my duplicates surprisingly quickly and with a clear understanding what I'm doing.
- (2023-09-09) الخبراء Experts: there are several apps but the automation is what I downloaded for it is a fantastic feature
- (2023-09-09) الخبراء Experts: there are several apps but the automation is what I downloaded for it is a fantastic feature
- (2023-09-08) Nam Tran: Absolutely excellent and straightforward. I tried two other bookmark dupe removers, but it did not work perfectly like this once. :D
- (2023-09-08) Nam Tran: Absolutely excellent and straightforward. I tried two other bookmark dupe removers, but it did not work perfectly like this once. :D
- (2023-07-20) Gen G: Excellent!
- (2023-07-20) Gen G: Excellent!
- (2023-06-06) Sandré de Paula: Perfeito, maravilhoso! eu tinha mais de 3800 favoritos (bookmarks) e com a ajuda dele eliminei os duplicados, eliminei as pastas vazias e agora tenho só 900 favoritos! Resolveu a bagunça de duplicados!
- (2023-05-30) Mark Andrew Gerads: I tried 2 other bookmark dupe removers, and neither were as good as this one. I quite like the ability to remove all but the oldest instance of a duplicate, which is quite useful when one has hundreds of duplicates, which one would have when migrating between browsers.
- (2023-05-30) Mark Andrew Gerads: I tried 2 other bookmark dupe removers, and neither were as good as this one. I quite like the ability to remove all but the oldest instance of a duplicate, which is quite useful when one has hundreds of duplicates, which one would have when migrating between browsers.