Clearing all cookies with JavaScript

Question

How do you delete all the cookies for the current domain using JavaScript

User · Answer

If you have access to the jquery cookie plugin  you can erase all cookies this way   for  var it in   cookie      removeCookie it

User · Answer

I don t know why the first voted answer doesn t work for me   As this answer said       There is no 100  solution to delete browser cookies       The problem is that cookies are uniquely identified by not just by their key  name  but also their  domain  and  path        Without knowing the  domain  and  path  of a cookie  you cannot reliably delete it  This information is not available through JavaScript s document cookie  It s not available through the HTTP Cookie header either    So my idea is to add a Cookie version control with the full set of setting  getting  removing of cookies   var cookie version control    ---2018 5 11    function setCookie name value days        var expires           if  days            var date   new Date            date setTime date getTime      days 24 60 60 1000            expires      expires     date toUTCString              document cookie   name cookie version control          value           expires      path        function getCookie name        var nameEQ   name cookie version control            var ca   document cookie split           for var i 0 i  lt  ca length i              var c   ca i           while  c charAt 0        c   c substring 1 c length           if  c indexOf nameEQ     0  return c substring nameEQ length c length             return null     function removeCookie name           document cookie   name cookie version control     Max-Age -99999999

User · Answer

You can get a list by looking into the document cookie variable  Clearing them all is just a matter of looping over all of them and clearing them one by one

User · Answer

After testing almost ever method listed in multiple style of browsers on multiple styles of cookies  I found almost nothing here works even 50    Please help correct as needed  but I m going to throw my 2 cents in here  The following method breaks everything down and basically builds the cookie value string based on both the settings pieces as well as including a step by step build of the path string  starting with   of course   Hope this helps others and I hope any criticism may come in the form of perfecting this method  At first I wanted a simple 1-liner as some others sought  but JS cookies are one of those things not so easily dealt with     function         if   window  deleteAllCookies    amp  amp  document  cookie              window deleteAllCookies   function showLog                var arrCookies   document cookie split                       arrPaths   location pathname replace            split           remove leading     and split any existing paths                 arrTemplate      expires Thu  01-Jan-1970 00 00 01 GMT    path  path     domain     window location host   secure           array of cookie settings in order tested and found most useful in establishing a  delete              for  var i in arrCookies                    var strCookie   arrCookies i                   if  typeof strCookie     string   amp  amp  strCookie indexOf       gt   0                        var strName   strCookie split      0        the cookie name                     for  var j 1 j lt  arrTemplate length j                              if  document cookie indexOf strName   lt  0  break     if this is true  then the cookie no longer exist                         else                               var strValue   strName           arrTemplate slice 0  j  join                   made using the temp array of settings  putting it together piece by piece as loop rolls on                             if  j    1  document cookie   strValue                              else                                   for  var k 0 k lt  arrPaths length k                                          if  document cookie indexOf strName   lt  0  break     if this is true  then the cookie no longer exist                                     else                                           var strPath   arrPaths slice 0  k  join                 builds path line                                          strValue   strValue replace   path    strPath                                           document cookie   strValue                                                                                                                                                                                                    showLog  amp  amp  window  console    amp  amp  console info  amp  amp  console info   n tCookies Have Been Deleted  n tdocument cookie         document cookie       n                return document cookie

User · Answer

I don t know why the first voted answer doesn t work for me   As this answer said       There is no 100  solution to delete browser cookies       The problem is that cookies are uniquely identified by not just by their key  name  but also their  domain  and  path        Without knowing the  domain  and  path  of a cookie  you cannot reliably delete it  This information is not available through JavaScript s document cookie  It s not available through the HTTP Cookie header either    So my idea is to add a Cookie version control with the full set of setting  getting  removing of cookies   var cookie version control    ---2018 5 11    function setCookie name value days        var expires           if  days            var date   new Date            date setTime date getTime      days 24 60 60 1000            expires      expires     date toUTCString              document cookie   name cookie version control          value           expires      path        function getCookie name        var nameEQ   name cookie version control            var ca   document cookie split           for var i 0 i  lt  ca length i              var c   ca i           while  c charAt 0        c   c substring 1 c length           if  c indexOf nameEQ     0  return c substring nameEQ length c length             return null     function removeCookie name           document cookie   name cookie version control     Max-Age -99999999

User · Answer

I found a problem in IE and Edge  Webkit browsers  Chrome  safari  seem to be more forgiving  When setting cookies  always set the  path  to something  because the default will be the page that set the cookie  So if you try to expire it on a different page without specifying the  path   the path won t match and it won t expire  The document cookie value doesn t show the path or expiration for a cookie  so you can t derive where the cookie was set by looking at the value   If you need to expire cookies from different pages  save the path of the setting page in the cookie value so you can pull it out later or always append    path     to the cookie value  Then it will expire from any page

User · Answer

After a bit of frustration with this myself I knocked together this function which will attempt to delete a named cookie from all paths   Just call this for each of your cookies and you should be closer to deleting every cookie then you were before   function eraseCookieFromAllPaths name           This function will attempt to remove a cookie from all paths      var pathBits   location pathname split           var pathCurrent     path            do a simple pathless delete first      document cookie   name       expires Thu  01-Jan-1970 00 00 01 GMT         for  var i   0  i  lt  pathBits length  i              pathCurrent      pathCurrent substr -1                        pathBits i           document cookie   name       expires Thu  01-Jan-1970 00 00 01 GMT     pathCurrent                  As always different browsers have different behaviour but this worked for me  Enjoy

User · Answer

An answer influenced by both second answer here and W3Schools  document cookie split      forEach function c      document cookie   c trim   split      0            expires Thu  01 Jan 1970 00 00 00 UTC          Seems to be working  edit  wow almost exactly the same as Zach s interesting how Stack Overflow put them next to each other   edit  nvm that was temporary apparently

User · Answer

Here s a simple code to delete all cookies in JavaScript   function deleteAllCookies       var cookies   document cookie split          for  var i   0  i  lt  cookies length  i         deleteCookie cookies i  split      0       function setCookie name  value  expirydays     var d   new Date     d setTime d getTime      expirydays 24 60 60 1000     var expires    expires    d toUTCString     document cookie   name         value          expires     function deleteCookie name     setCookie name    -1       Run the function deleteAllCookies   to clear all cookies

User · Answer

One liner  In case you want to paste it in quickly     document cookie split      forEach function c    document cookie   c replace            replace           expires     new Date   toUTCString       path            And the code for a bookmarklet    javascript  function   document cookie split      forEach function c    document cookie   c replace            replace           expires     new Date   toUTCString       path

User · Answer

I found a problem in IE and Edge  Webkit browsers  Chrome  safari  seem to be more forgiving  When setting cookies  always set the  path  to something  because the default will be the page that set the cookie  So if you try to expire it on a different page without specifying the  path   the path won t match and it won t expire  The document cookie value doesn t show the path or expiration for a cookie  so you can t derive where the cookie was set by looking at the value   If you need to expire cookies from different pages  save the path of the setting page in the cookie value so you can pull it out later or always append    path     to the cookie value  Then it will expire from any page

User · Answer

Figured I d share this method for clearing cookies  Perhaps it may be helpful for someone else at some point   var cookie   document cookie split        for  var i   0  i  lt  cookie length  i           var chip   cookie i           entry   chip split               name   entry 0        document cookie   name       expires Thu  01 Jan 1970 00 00 01 GMT

User · Answer

As far as I know there s no way to do a blanket delete of any cookie set on the domain  You can clear a cookie if you know the name and if the script is on the same domain as the cookie    You can set the value to empty and the expiration date to somewhere in the past   var mydate   new Date    mydate setTime mydate getTime   - 1   document cookie    username   expires     mydate toGMTString       There s an excellent article here on manipulating cookies using javascript

User · Answer

I have some more sophisticated and OOP-oriented cookie control module  It also contains deleteAll method to clear all existing cookie  Make notice that this version of deleteAll method has setting path   that causes deleting of all cookies within current domain  If you need to delete cookies only from some scope you will have to upgrade this method my adding dynamic path parameter to this method   There is main Cookie class   import  Setter  from    Setter    export class Cookie                   param  string  key         return  string undefined              static get key            key   key replace                              g      1             const regExp   new RegExp              key                        const matches   document cookie match regExp            return matches               decodeURIComponent matches 1                 undefined                         param  string  name             static delete name            this set name        expires  -1                static deleteAll             const cookies   document cookie split                 for  let cookie of cookies                const index   cookie indexOf                    const name    index                   cookie substr 0  index                    cookie               document cookie   name      expires Thu  01 Jan 1970 00 00 00 GMT path                                      param  string  name         param  string boolean  value         param   expires  Date string number path  string domain  string secure  boolean   opts             static set name  value  opts                 Setter set name  value  opts             Cookie setter method  Cookie set  is rather complex so I decomposed it into other class  There is code of this one   export class Setter                   param  string  name         param  string boolean  value         param   expires  Date string number path  string domain  string secure  boolean   opts             static set name  value  opts                 value   Setter prepareValue value           opts   Setter prepareOpts opts            let updatedCookie   name         value           for  let i in opts                if   opts hasOwnProperty i   continue               updatedCookie           i               const value   opts i                if  value     true                  updatedCookie          value                     document cookie   updatedCookie                         param  string  value         return  string          private             static prepareValue value            return encodeURIComponent value                          param   expires  Date string number path  string domain  string secure  boolean   opts         private             static prepareOpts opts                 opts   Object assign     opts            let  expires    opts           if  typeof expires     number   amp  amp  expires                const date   new Date                 date setTime date getTime     expires   1000                expires   opts expires   date                     if  expires  amp  amp  expires toUTCString              opts expires   expires toUTCString             return opts

User · Answer

You can get a list by looking into the document cookie variable  Clearing them all is just a matter of looping over all of them and clearing them one by one

User · Answer

Here s a simple code to delete all cookies in JavaScript   function deleteAllCookies       var cookies   document cookie split          for  var i   0  i  lt  cookies length  i         deleteCookie cookies i  split      0       function setCookie name  value  expirydays     var d   new Date     d setTime d getTime      expirydays 24 60 60 1000     var expires    expires    d toUTCString     document cookie   name         value          expires     function deleteCookie name     setCookie name    -1       Run the function deleteAllCookies   to clear all cookies

User · Answer

Delete all cookies function deleteAllCookies         var cookies   document cookie split           for  var i   0  i  lt  cookies length  i              var cookie   cookies i           var eqPos   cookie indexOf               var name   eqPos  gt  -1   cookie substr 0  eqPos    cookie          document cookie   name                       expires Thu  01-Jan-1970 00 00 01 GMT                  path                         domain     window location host                      secure

User · Answer

Jquery   var cookies     cookie    for var cookie in cookies      removeCookie cookie       vanilla JS  function clearListCookies         var cookies   document cookie split        for  var i   0  i  lt  cookies length  i               var spcook    cookies i  split           deleteCookie spcook 0          function deleteCookie cookiename           var d   new Date        d setDate d getDate   - 1       var expires     expires   d      var name cookiename        alert name       var value         document cookie   name         value   expires      path  acc html                         window location          TO REFRESH THE PAGE

User · Answer

function deleteAllCookies         var cookies   document cookie split            for  var i   0  i  lt  cookies length  i              var cookie   cookies i           var eqPos   cookie indexOf               var name   eqPos  gt  -1   cookie substr 0  eqPos    cookie          document cookie   name      expires Thu  01 Jan 1970 00 00 00 GMT             Note that this code has two limitations    It will not delete cookies with HttpOnly flag set  as the HttpOnly flag disables Javascript s access to the cookie  It will not delete cookies that have been set with a Path value   This is despite the fact that those cookies will appear in document cookie  but you can t delete it without specifying the same Path value with which it was set

User · Answer

You can get a list by looking into the document cookie variable  Clearing them all is just a matter of looping over all of them and clearing them one by one

User · Answer

As far as I know there s no way to do a blanket delete of any cookie set on the domain  You can clear a cookie if you know the name and if the script is on the same domain as the cookie    You can set the value to empty and the expiration date to somewhere in the past   var mydate   new Date    mydate setTime mydate getTime   - 1   document cookie    username   expires     mydate toGMTString       There s an excellent article here on manipulating cookies using javascript

User · Answer

Figured I d share this method for clearing cookies  Perhaps it may be helpful for someone else at some point   var cookie   document cookie split        for  var i   0  i  lt  cookie length  i           var chip   cookie i           entry   chip split               name   entry 0        document cookie   name       expires Thu  01 Jan 1970 00 00 01 GMT

User · Answer

Delete all cookies function deleteAllCookies         var cookies   document cookie split           for  var i   0  i  lt  cookies length  i              var cookie   cookies i           var eqPos   cookie indexOf               var name   eqPos  gt  -1   cookie substr 0  eqPos    cookie          document cookie   name                       expires Thu  01-Jan-1970 00 00 01 GMT                  path                         domain     window location host                      secure

User · Answer

Simpler  Faster   function deleteAllCookies      var c   document cookie split         for  i in c     document cookie           exec c i   0     expires Thu  01 Jan 1970 00 00 00 GMT

User · Answer

You can get a list by looking into the document cookie variable  Clearing them all is just a matter of looping over all of them and clearing them one by one

User · Answer

I have some more sophisticated and OOP-oriented cookie control module  It also contains deleteAll method to clear all existing cookie  Make notice that this version of deleteAll method has setting path   that causes deleting of all cookies within current domain  If you need to delete cookies only from some scope you will have to upgrade this method my adding dynamic path parameter to this method   There is main Cookie class   import  Setter  from    Setter    export class Cookie                   param  string  key         return  string undefined              static get key            key   key replace                              g      1             const regExp   new RegExp              key                        const matches   document cookie match regExp            return matches               decodeURIComponent matches 1                 undefined                         param  string  name             static delete name            this set name        expires  -1                static deleteAll             const cookies   document cookie split                 for  let cookie of cookies                const index   cookie indexOf                    const name    index                   cookie substr 0  index                    cookie               document cookie   name      expires Thu  01 Jan 1970 00 00 00 GMT path                                      param  string  name         param  string boolean  value         param   expires  Date string number path  string domain  string secure  boolean   opts             static set name  value  opts                 Setter set name  value  opts             Cookie setter method  Cookie set  is rather complex so I decomposed it into other class  There is code of this one   export class Setter                   param  string  name         param  string boolean  value         param   expires  Date string number path  string domain  string secure  boolean   opts             static set name  value  opts                 value   Setter prepareValue value           opts   Setter prepareOpts opts            let updatedCookie   name         value           for  let i in opts                if   opts hasOwnProperty i   continue               updatedCookie           i               const value   opts i                if  value     true                  updatedCookie          value                     document cookie   updatedCookie                         param  string  value         return  string          private             static prepareValue value            return encodeURIComponent value                          param   expires  Date string number path  string domain  string secure  boolean   opts         private             static prepareOpts opts                 opts   Object assign     opts            let  expires    opts           if  typeof expires     number   amp  amp  expires                const date   new Date                 date setTime date getTime     expires   1000                expires   opts expires   date                     if  expires  amp  amp  expires toUTCString              opts expires   expires toUTCString             return opts

User · Answer

An answer influenced by both second answer here and W3Schools  document cookie split      forEach function c      document cookie   c trim   split      0            expires Thu  01 Jan 1970 00 00 00 UTC          Seems to be working  edit  wow almost exactly the same as Zach s interesting how Stack Overflow put them next to each other   edit  nvm that was temporary apparently

User · Answer

Jquery   var cookies     cookie    for var cookie in cookies      removeCookie cookie       vanilla JS  function clearListCookies         var cookies   document cookie split        for  var i   0  i  lt  cookies length  i               var spcook    cookies i  split           deleteCookie spcook 0          function deleteCookie cookiename           var d   new Date        d setDate d getDate   - 1       var expires     expires   d      var name cookiename        alert name       var value         document cookie   name         value   expires      path  acc html                         window location          TO REFRESH THE PAGE

User · Answer

function deleteAllCookies         var cookies   document cookie split            for  var i   0  i  lt  cookies length  i              var cookie   cookies i           var eqPos   cookie indexOf               var name   eqPos  gt  -1   cookie substr 0  eqPos    cookie          document cookie   name      expires Thu  01 Jan 1970 00 00 00 GMT             Note that this code has two limitations    It will not delete cookies with HttpOnly flag set  as the HttpOnly flag disables Javascript s access to the cookie  It will not delete cookies that have been set with a Path value   This is despite the fact that those cookies will appear in document cookie  but you can t delete it without specifying the same Path value with which it was set

User · Answer

And here s one to clear all cookies in all paths and all variants of the domain  www mydomain com  mydomain com etc      function          var cookies   document cookie split            for  var c   0  c  lt  cookies length  c              var d   window location hostname split               while  d length  gt  0                var cookieBase   encodeURIComponent cookies c  split      0  split      0         expires Thu  01-Jan-1970 00 00 01 GMT  domain     d join           path                var p   location pathname split                   document cookie   cookieBase                    while  p length  gt  0                    document cookie   cookieBase   p join                       p pop                               d shift

User · Answer

After testing almost ever method listed in multiple style of browsers on multiple styles of cookies  I found almost nothing here works even 50    Please help correct as needed  but I m going to throw my 2 cents in here  The following method breaks everything down and basically builds the cookie value string based on both the settings pieces as well as including a step by step build of the path string  starting with   of course   Hope this helps others and I hope any criticism may come in the form of perfecting this method  At first I wanted a simple 1-liner as some others sought  but JS cookies are one of those things not so easily dealt with     function         if   window  deleteAllCookies    amp  amp  document  cookie              window deleteAllCookies   function showLog                var arrCookies   document cookie split                       arrPaths   location pathname replace            split           remove leading     and split any existing paths                 arrTemplate      expires Thu  01-Jan-1970 00 00 01 GMT    path  path     domain     window location host   secure           array of cookie settings in order tested and found most useful in establishing a  delete              for  var i in arrCookies                    var strCookie   arrCookies i                   if  typeof strCookie     string   amp  amp  strCookie indexOf       gt   0                        var strName   strCookie split      0        the cookie name                     for  var j 1 j lt  arrTemplate length j                              if  document cookie indexOf strName   lt  0  break     if this is true  then the cookie no longer exist                         else                               var strValue   strName           arrTemplate slice 0  j  join                   made using the temp array of settings  putting it together piece by piece as loop rolls on                             if  j    1  document cookie   strValue                              else                                   for  var k 0 k lt  arrPaths length k                                          if  document cookie indexOf strName   lt  0  break     if this is true  then the cookie no longer exist                                     else                                           var strPath   arrPaths slice 0  k  join                 builds path line                                          strValue   strValue replace   path    strPath                                           document cookie   strValue                                                                                                                                                                                                    showLog  amp  amp  window  console    amp  amp  console info  amp  amp  console info   n tCookies Have Been Deleted  n tdocument cookie         document cookie       n                return document cookie

User · Answer

function deleteAllCookies         var cookies   document cookie split            for  var i   0  i  lt  cookies length  i              var cookie   cookies i           var eqPos   cookie indexOf               var name   eqPos  gt  -1   cookie substr 0  eqPos    cookie          document cookie   name      expires Thu  01 Jan 1970 00 00 00 GMT             Note that this code has two limitations    It will not delete cookies with HttpOnly flag set  as the HttpOnly flag disables Javascript s access to the cookie  It will not delete cookies that have been set with a Path value   This is despite the fact that those cookies will appear in document cookie  but you can t delete it without specifying the same Path value with which it was set

User · Answer

Functional Approach   ES6  const cookieCleaner        gt      return document cookie split      reduce function  acc  cookie        const eqPos   cookie indexOf           const cleanCookie      cookie substr 0  eqPos    expires Thu  01 Jan 1970 00 00 00 GMT        return    acc   cleanCookie                     Note  Doesn t handle paths

User · Answer

One liner  In case you want to paste it in quickly     document cookie split      forEach function c    document cookie   c replace            replace           expires     new Date   toUTCString       path            And the code for a bookmarklet    javascript  function   document cookie split      forEach function c    document cookie   c replace            replace           expires     new Date   toUTCString       path

User · Answer

As far as I know there s no way to do a blanket delete of any cookie set on the domain  You can clear a cookie if you know the name and if the script is on the same domain as the cookie    You can set the value to empty and the expiration date to somewhere in the past   var mydate   new Date    mydate setTime mydate getTime   - 1   document cookie    username   expires     mydate toGMTString       There s an excellent article here on manipulating cookies using javascript

User · Answer

If you have access to the jquery cookie plugin  you can erase all cookies this way   for  var it in   cookie      removeCookie it

User · Answer

function deleteAllCookies         var cookies   document cookie split            for  var i   0  i  lt  cookies length  i              var cookie   cookies i           var eqPos   cookie indexOf               var name   eqPos  gt  -1   cookie substr 0  eqPos    cookie          document cookie   name      expires Thu  01 Jan 1970 00 00 00 GMT             Note that this code has two limitations    It will not delete cookies with HttpOnly flag set  as the HttpOnly flag disables Javascript s access to the cookie  It will not delete cookies that have been set with a Path value   This is despite the fact that those cookies will appear in document cookie  but you can t delete it without specifying the same Path value with which it was set

User · Answer

Functional Approach   ES6  const cookieCleaner        gt      return document cookie split      reduce function  acc  cookie        const eqPos   cookie indexOf           const cleanCookie      cookie substr 0  eqPos    expires Thu  01 Jan 1970 00 00 00 GMT        return    acc   cleanCookie                     Note  Doesn t handle paths

User · Answer

After a bit of frustration with this myself I knocked together this function which will attempt to delete a named cookie from all paths   Just call this for each of your cookies and you should be closer to deleting every cookie then you were before   function eraseCookieFromAllPaths name           This function will attempt to remove a cookie from all paths      var pathBits   location pathname split           var pathCurrent     path            do a simple pathless delete first      document cookie   name       expires Thu  01-Jan-1970 00 00 01 GMT         for  var i   0  i  lt  pathBits length  i              pathCurrent      pathCurrent substr -1                        pathBits i           document cookie   name       expires Thu  01-Jan-1970 00 00 01 GMT     pathCurrent                  As always different browsers have different behaviour but this worked for me  Enjoy

User · Answer

Simpler  Faster   function deleteAllCookies      var c   document cookie split         for  i in c     document cookie           exec c i   0     expires Thu  01 Jan 1970 00 00 00 GMT

User · Answer

And here s one to clear all cookies in all paths and all variants of the domain  www mydomain com  mydomain com etc      function          var cookies   document cookie split            for  var c   0  c  lt  cookies length  c              var d   window location hostname split               while  d length  gt  0                var cookieBase   encodeURIComponent cookies c  split      0  split      0         expires Thu  01-Jan-1970 00 00 01 GMT  domain     d join           path                var p   location pathname split                   document cookie   cookieBase                    while  p length  gt  0                    document cookie   cookieBase   p join                       p pop                               d shift

User · Answer

As far as I know there s no way to do a blanket delete of any cookie set on the domain  You can clear a cookie if you know the name and if the script is on the same domain as the cookie    You can set the value to empty and the expiration date to somewhere in the past   var mydate   new Date    mydate setTime mydate getTime   - 1   document cookie    username   expires     mydate toGMTString       There s an excellent article here on manipulating cookies using javascript

[javascript] Clearing all cookies with JavaScript

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