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Repository for the last open source version of Booked Scheduler. The "develop" branch contains the most current working code of the project and should be considered beta. The "master" branch is the most current stable release of BookedScheduler. Please read doc/ for further details.



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Create default schedule with default timezone (not America/New_York)

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Welcome to LibreBooking

This is a community effort to keep the OpenSource GPLv3 LibreBooking alive, see History


  • PHP 7.0 or greater
  • MySQL 5.5 or greater
  • Web server (Apache, IIS)

Installation instructions

Full install instructions

Developer Documentation

developer documentation


Please consult the wiki for more help



We now have a chatroom on, join us at:


09/03/2023 - The ReCaptcha integration has been updated to v3, you will need to generate new keys for your website if you are using it on your website.

Release Notes


Librebooking now has PHP8 support Many bugs, updates and even new features were added but the list is a bit long so for further details please check the commit history

This version is no longer developed by Twinkle Toes Software ( Based on the original open source version of Booked, now available at:
Fork this repo, contribute and help keep it alive

Small update to fix a security issue

This version is no longer developed by Twinkle Toes Software ( Based on the original open source version of Booked, now available at:
Fork this repo, contribute and help keep it alive

Way too many changes, bugfixes and improvements to list them all here, so please take a look at:

This version is no longer developed by Twinkle Toes Software ( Based on the original open source version of Booked, now available at:
Fork this repo, contribute and help keep it alive

  • Added translation: Greek
  • Updated jsPDF
  • Bugfixes

This version is no longer developed by Twinkle Toes Software ( Based on the original open source version of Booked, now available at:
Fork this repo, contribute and help keep it alive - Bugfixes

This version is no longer developed by Twinkle Toes Software ( Based on the original open source version of Booked, now available at:

Fork this repo, contribute and help keep it alive - Added intial support for generating pdf's on the reservation page

  • Added two plugins (Moodle Advanced Authentication and Admin Check-in/out Only)
  • Updated portuguese translation
  • Bugfixes


  • Added import and export of groups
  • Updated Danish translation
  • Allow lower level administrators edit in-progress reservations
  • Added optional email to be sent to users when changing resource status
  • Added setting to show week numbers on calendars
  • Added settings to require phone, position, and organization during registration
  • Bugfixes


  • Allow reservations on the schedule to be filtered by owner or participant
  • Include participant list in reports output
  • Add resource concurrency to resource import and export
  • Bugfixes


  • Do not require logging in to set up resource tablet display
  • Bugfixes


  • Added the ability to set a limit on the number of concurrent reservations per resource
  • Removed the ability to set a schedule as allowing unlimited concurrent reservations per resource
  • Bugfixes


  • Added ability to limit the total number of concurrent reservations for a schedule
  • Added ability to limit the number of resources per reservation for a schedule


  • Added ability to repeat a reservation on non-sequential dates
  • Updated PayPal API to version 2
  • Added option to sync group membership when logging in via SAML
  • Updated Portuguese, German, and Spanish translations
  • Updated PhpCAS to 1.3.8
  • MySQL 8+ compatibility
  • Bugfixes


  • Added a configuration option to show whether a reservation is new or updated for a period of time
  • Added Hungarian translation
  • Bugfixes


  • Added email notifications when participants of a reservation accept or decline invites
  • Added reservation waitlist signup on view reservation page
  • Added ability to restrict guests from using tablet view
  • Notify users if the creation of a blackout time deletes their reservation
  • Updated Portuguese and Finnish translations
  • Bugfixes


  • Added utilization reports
  • Added ability to find a specific time
  • Added recurring reservation series ending emails
  • Added credits to reservation emails
  • Added link to add to Google Calendar to reservation emails
  • Bugfixes


  • Added availability view to reservation page
  • Added participant list to reservation emails
  • Redesign of resource tablet display
  • Added ability to search for reservations that missed checkin/checkout
  • Bugfixes


  • Added ability to set user status on CSV import
  • Added ability to share reservation details via email
  • Added ability set the resources, groups, and schedules a group can administer from Groups tool
  • Bugfixes


  • Added monitor display view
  • Resolved accessibility issues
  • Added Serbian
  • Bugfixes


  • Added ability to purchase credits
  • Added credit usage to the reservation page
  • Added ability to set comma or semicolon delimited configuration setting to allow multiple admin emails
  • Added ability to send a reservation to Google Calendar
  • Added ability to select a resource image while adding
  • Added ability to begin a reservation directly from Slack
  • Added ability to set default group membership
  • Added ability to require terms of service acknowledgment
  • Added ability to set login page announcements
  • Added ability to set schedule availability dates
  • Added ability to configure different minimum notice rules for reservation add, edit and delete
  • Added ability to allow multiple reservations on the same resource at the same time for a schedule
  • Added ability to set multiple resource images
  • Added ability to set view-only resource permissions
  • Added ability to sync group membership from LDAP and CAS
  • Added ability to set fully custom layout slots
  • Added blackouts to schedule and resource calendar view
  • Added view calendar page
  • Added ability to embed a Booked calendar view on an external website
  • Added ability to require reservation title and description
  • Added user groups to report output
  • Added ability to set custom favicon
  • Added ability to customize email messages
  • Added ability to bulk delete resources
  • Resource QR code will open ongoing reservation if it requires check in
  • Added ability to find an open recurring time
  • Upgraded jQuery to latest
  • Bugfixes


  • Added ability to see real time availability when selecting additional resources
  • Added the ability to set a delete/reject reason
  • Added the ability to update users and resources on import from CSV
  • Allow setting phone, organization and position when creating a user from the admin section
  • Better highlight pending reservations on Dashboard and popups
  • Optimize JavaScript file loading for better page rendering times
  • Bugfixes


  • Added real-time indication of additional resource availability in reservation screen
  • Added ability to search for reservations
  • Added ability to send user an email when an account is created for them
  • Added option to show captcha on login
  • Updated reCaptcha to use nocaptcha
  • If recurring start and end dates are not the same, then include both in the emails
  • Added Basque language
  • Added Thai language
  • Bugfixes


  • Added ability to set default start and end reminders
  • Added ability to import resources from CSV
  • Added ability to export resources to CSV
  • Added ability to export users to CSV
  • Added ability to include custom attributes in user CSV import
  • Added ability to import reservations from CSV
  • Added ability to bulk delete users
  • Added ability to bulk delete reservations
  • Added ability to bulk delete blackouts
  • Added ability to drag and drop reservations from calendar views
  • Added ability to select multiple options for most report filters
  • Added password update API
  • Added ability to set number of past and future days to include for Atom and iCalendar subscriptions
  • Added ability to apply configured default homepage to existing users
  • Saved reports and exported reports will use same columns
  • Added credits to manage reservations and reports
  • Show if a reservation is pending approval on popups and edit page
  • Added config option to notify users if they missed their reservation check in time
  • Numerous security fixes
  • Bugfixes


  • Ensure only one reminder email is sent per reservation when multiple resources are booked
  • Added Vietnamese
  • Added ability to automatically fill in blocked time slots based on gaps in available slots
  • Added ability to update a reservation before approving it
  • Added resource type filter to reports
  • Bugfixes


  • Use resource color on availability dashboard
  • Display reservations for multiple resources as one item on dashboard
  • Better handling of dates on the reservation page when an entire day is unavailable
  • Allow view schedule to be changed to alternate schedule views
  • Upgrade PHPMailer
  • Bugfixes


  • Include resource name in all email subjects
  • Added 'Today' link to schedule navigation
  • Added real time accessory quantity availability
  • Added ability to include email and phone in reservation popup
  • Added support for MySQL 5.7+
  • Added use sso flag for Active Directory authentication
  • Added user available credits to the reservation page
  • Added ability to copy a resource
  • Added Russian
  • Bugfixes and security updates


  • Added ability to invite users to join Booked
  • Added ability to repeat multi-day reservations
  • Added additional columns to reports
  • Bugfixes
  • Updated French language pack


  • Bugfixes


  • Mobile first, fully responsive user interface
  • Allow guests to book and be invited to reservations
  • Allow users to join wait list if requested time not available
  • Control resource usage with credits
  • Ability to request that users check in and out of reservations, optionally auto-releasing the reservation
  • Allow users to sign in using Facebook or Google
  • Require users to register with an email address from a known domain
  • Set specific days and hours which quotas are enforced
  • Allow quotas to exclude completed reservations
  • Added ability to search for an available time rather than browsing schedule
  • Require minimum and maximum number of accessories when specific resources are booked
  • Ability to restrict announcements to certain groups or users with access to certain resources
  • Added ability to book around conflicting reservations
  • Added ability to set reservation color by user, resource, or custom attribute value
  • Added tablet view that can be used to display resource schedule and allow sign ups
  • Added private custom attributes
  • Added admin-only custom attributes
  • Added resource-aware custom reservation attributes
  • Invites are attached to reservation emails as .ics file
  • On mobile, allow a picture to be taken for resource image
  • The first user to register will automatically be setup as the primary admin
  • Numerous minor enhancements and bug fixes


  • Added ability to duplicate a reservation
  • Added ability to move reservations by dragging to new slot
  • Added ability to blackout around existing reservations
  • Added delete confirmation to reservation window
  • Fix API bugs
  • Fix bug not showing custom user attributes on manage user page
  • Fix for account deleted email


  • Added multi-date selection to bookings page
  • Added ability to send announcements as emails
  • Added ability to send email to all users when reservation is cancelled
  • Added ability to filter on multiple resources on bookings page
  • Added ability to allow cross origin requests for API
  • Added ability to import ICS files
  • Fixed click and drag on condensed week view
  • Fixed problem showing hidden resources on dashboard


  • Fixed some packaging issues from 2.5.18
  • Added ability to filter multiple resources on the schedule
  • Updated Japanese language files


  • Fixed bugs with CSRF checks
  • Changed the manage reservation search filter to be inclusive of reservations spanning filtered time
  • Fixed issue that didn't maintain selected date in schedule calendar popup
  • Fixed double html encode issue for custom attributes
  • Fixed issue filtering on custom attributes on manage reservations page
  • Added fix to allow larger datasets returned when using group_concat
  • Fixed the 'deleted by' name in the account deletion email


  • Fixed bug preventing schedule view switching on Chrome and IE
  • Fixed bug with reports showing no results when searching on accessories
  • Fixed issue displaying schedule dates even when no slots are defined
  • If register or forgot password urls open in external site, open in new window
  • Include total hours in reports
  • Changed reservation email message to come from whoever made the reservation
  • Added ability to override language strings
  • Fixed missing homepageid upon registration
  • Fixed missing email address in reservation reminders
  • Properly custom attribute regex format if user supplied version is incorrect
  • Added ability to remove all assigned permissions for resource
  • Added ability to include all reservation attributes in display labels
  • Save calendar expand/collapse on schedule page
  • Fixed bug determining when to send notification emails
  • Fixed bug with PR language
  • Changed resource availability web service to use same logic as dashboard
  • Fixed issue displaying reservations when date had no slots
  • Fixed bug that prevented cookies from being written properly in IE
  • Fixed warning when path property is not found in the url
  • Removed CSRF check on registration page
  • Ensure session is started when rendering captcha
  • Fixed syntax issue on PHP 5.3 and lower


  • Added datetime custom attribute type
  • Added ability to import a list of users
  • Added ability to manage custom attributes through the API
  • Added ability to customize report columns
  • Added a yearly quota
  • Added API for getting resource types and ability to set resource type in add/update
  • Added ability to restrict showing user details to simply on/off or past/future reservations
  • Added user deleted email notification
  • When a reservation is created on behalf of another user, the user taking action is included in the email notifications
  • When a user is created on behalf of another user, the user taking action is included in the email notification
  • Improved rendering of schedule when being printed
  • Resource details are now shown even if user does not have permission
  • Added ability to include Google Analytics
  • Fixed bug which prevented joining or canceling a recurring reservation instance if it violated a notice rule
  • Fixed resource availability dashboard timeout issues
  • Fixed bug with creating and updating reservations through the API
  • Fixed bug which over-counted accessories when reservation contained multiple resources
  • Fixed bug loading resource type attributes when managing custom attributes
  • Fixed bug requiring user to uncheck removed resources from all groups
  • Fixed bug for resource groups when they are returned from the db sorted incorrectly
  • Fixed bug with upcoming reservations dashboard
  • Changed cookies to be scoped to Booked root path
  • Implemented CSRF checks (thank you Netsparker)
  • Updated French language pack
  • Updated Croatian language pack


  • Added ability for users to join reservations without being invited
  • Upgraded CAS library to 1.3.3
  • Added Active Directory option to sync group membership into Booked
  • Added user details popup
  • Added ability to manage user and group permissions from resource management page
  • Fixed bug preventing recurring reservations from being deleted in management page
  • Fixed bug incorrectly grouping recurring reservations on calendar views
  • Updated Italian language
  • Updated Spanish language


  • Added notice to schedule when no resources have been added
  • Added emails to participants and invitees when a reservation is updated
  • Added resource image to reservation email
  • Added ability to set default homepage for new users
  • Added dashboard item for current resource availability
  • Fixed bug displaying wrong reservation dates on reservation save confirmation message
  • Fixed bug on view schedule page when using daily layouts
  • Fixed bug preventing individual reservations from being added to external calendars
  • Fixed bug which did not check Sunday checkbox on recurring reservations
  • Fixed bug on dst change preventing all reservations on that day
  • Fixed bug causing permission updates performed by schedule admins to wipe out certain permissions
  • Updated Italian language pack
  • Updated Spanish language pack


  • Fixed bug preventing reservations from being added to Outlook
  • Fixed bug preventing accessories from showing in reservation popup
  • Fixed bug preventing resource filter from working on view schedule
  • Added Drupal authentication plugin (Drupal 7.x with MySQL only)
  • Added ability to display participant and invitee lists in the reservation label
  • Applied patch for HTTP security headers
  • Updated Italian language


  • Fixed English admin help page


  • Fixed issue that was sending approval request emails on every reservation create/update if approval emails were enabled


  • Fixed issue sending email from *nix servers


  • Added custom attributes to reports
  • Added resource groups to calendar views
  • Added ability to enter maintenance mode
  • Added ability manage user groups through API
  • Added more options for customizing the reservation slot label, including using custom attributes
  • Added ability to customize reservation label for My Calendar, Resource Calendar, ICS feeds, RSS feeds and the reservation popup
  • Added list of dates and resources to reservation confirmation message
  • Added ability to receive reservation approval request emails
  • Added API to get schedule slots
  • Added finer-grained control over what profile values can be managed through Booked when using an authentication plugin
  • Reduced the size of the bookings page
  • Fixed bug graying out resources and dates when user and schedule timezone don't match
  • Fixed bug handling non-UTC dates in API
  • Fixed bug performing case sensitive match when checking if user is admin
  • Fixed bug for GetAvailability API
  • Updated German language files
  • Updated Portuguese language files


  • Added schedule and resource filter to My Calendar
  • Fixed bug displaying week in calendar views
  • Reduced the size of the bookings page by ~35%
  • Updated German language files
  • Updated Japanese language files
  • Updated Portuguese language files


  • Fixed potential XSS vulnerability on login page


  • Fixed problem navigating to reservation details from tall schedule view
  • Fixed problem rendering resource group management page


  • Fixed problem updating plugin config files through UI
  • Fixed date parsing in web services


  • Fixed error updating resources


  • Fixed manage reservations/resources custom attribute filter when multiple attributes are provided
  • Fixed javascript error when recaptcha is disabled during registration
  • Fixed error updating usage configuration of resources
  • Fixed installer to handle the case when the database exists but no tables have been created
  • Changed installer to use mysqli
  • Fixed error filtering blackouts by resource
  • Fixed error creating recurring reservation which sometimes picked the wrong week of the month


  • Added ability for admins to filter reservations by custom attributes
  • Added ability for admins update reservation custom attributes inline on manage reservations page
  • Added paging and filtering on Manage Resources
  • Added bulk update on Manage Resources
  • Added admin dashboard for all upcoming reservations
  • Added ability to leave protocol off script.url setting to auto-detect http vs https
  • Fixed bug failing to display error message when invalid daily layout is being created
  • Fixed missing HTML tags on print report page
  • Added Croatian translation
  • Updated Czech translation
  • Fixed overly restrictive password validator
  • Changed reservation confirmation screen to notify when the reservation requires approval
  • Updates to Italian language pack


  • Updated German language files
  • Changed reservations web service to not default to current user if no user is provided
  • Added resource availability web service
  • Added reservation approval web service
  • Fixed bug creating a opening new reservation window without a selected resource id
  • Fixed bug where reservations ending at midnight would show on the next day for condensed view
  • Fixed bug where role restricted pages could not be opened up to everyone
  • Fixed bug when a hidden resource belongs to a group
  • Fixed bug with schedule admin being able to see reservation list and see blackout list
  • Fixed bug where readonly schedule page failed to render
  • Fixed bug adding/removing resource images
  • Fixed sample data import
  • Cleaned up sample post-reservation plugin example


  • Application renamed from phpScheduleIt to Booked Scheduler (why?)
  • Added ability to reserve resource groups
  • Added ability to filter schedule resources
  • Added ability to specify resource type
  • Added enhanced resource status management
  • Added ability to specify buffer time between reservations (per resource)
  • Custom attributes now appear on all reservation emails and balloons
  • Added ability set custom attributes for an individual resource, user or resource type
  • Added ability manage config files for all plugins through the UI
  • Added ability to set reservation colors per user
  • Added ability to subscribe to reservation Atom feeds
  • Added ability update blackouts
  • Added ability attach multiple items to a reservation
  • Added Shibboleth authentication plugin (thank you to the folks at UCSF)
  • Added ability to email admin for all new account creations
  • Updates and cleanup on the API
  • Removed password regex setting in favor of password complexity settings
  • Changed schedule drop downs to exclude schedules if the user does not have permission to any of the resources belonging to it
  • Added wide and condensed booking page views
  • Added option to allow all users access to reports
  • Added setting for default 'from' email address
  • Changed the reservation page to default to the minimum resource reservation time
  • Changed reservation update to grant permissions to all users if auto-assign permissions is being turned on
  • Fixed showing 'Private' when the current user is the reservation owner
  • Fixed bug where recurring reservations across daylight savings time boundaries were not being updated to the correct time
  • Fixed bug where schedule would freeze on certain daylight savings boundaries
  • Fixed pagination bug on manage reservations page
  • Fixed bug allowing invitees to join a reservation that was already at capacity
  • Fixed bug not enforcing resource cross day reservation constraint
  • Fixed bug where quota rules were being enforced cumulatively for resources on a schedule
  • Fixed bug where reminders were being sent for deleted reservations
  • Updated all mysql_* calls to mysqli_*
  • Numerous other minor fixes and updates


  • Added ability to click and drag to create reservations
  • Added ability hide blocked slots on schedule
  • Added ability to view reservation participation on schedule
  • Changed migration process to be asynchronous
  • Fixed bug preventing reminders from running on some servers
  • Fixed bug hiding labels for periods less than 1 hour
  • Fixed bug in configuration management escaping special characters
  • Fixed bug when changing start date/end date on reservation page
  • Fixed bug selecting wrong start time when user and schedule timezones are different
  • Updated German, Portuguese and Hebrew languages


  • Changed periods spanning less than an hour to display tick marks instead of times
  • Fixed bug when displaying vertical schedule when reservation title contained special characters
  • Fixed bug in migration script not copying legacy password correctly
  • Fixed bugs generating API documentation


  • Added restful API
  • Added ability to set different layouts for each day of the week
  • Added ability to set reminders for reservation beginning and end
  • Added UI management page for changing configuration
  • Added ability for users to set default schedule
  • Added ability to display schedules vertically
  • Text for slot labels is now tokenized
  • Added WordPress authentication plugin
  • Added ability to use reCAPTCHA instead of built in captcha
  • Added ability to set logo and custom css files
  • Added configurable home page and logout urls
  • Added ability to manage user groups from user management page
  • Added Bulgarian and Flemisch language packs
  • Localized the installation and configuration pages
  • Fixed issues with accessory and reservation migration
  • Added ability to disable password reset
  • Numerous bug fixes and minor enhancements


  • Added ability for administrators of all levels to create reports
  • Added ability to create a reservation from the schedule and resource calendar views
  • Added ability to create recurring blackout dates
  • Added schedule admin role
  • Added setting to disable recurring reservations for non-admins
  • Added setting to automatically subscribe users to all emails
  • Added setting to prevent reservation invitations and participation
  • Added setting to load jQuery from CDN
  • Added setting to return reservation to pending when updated
  • Added Swedish translation
  • Added full resource and accessory list to reservation emails
  • Added ability to set resource order
  • Added email address to user autocomplete
  • Numerous minor enhancements added and defects fixed


  • Breaking change: For Active Directory authentication, please set your authentication plugin to ActiveDirectory. Ldap plugin is now targeted at non-Active Directory.
  • Added ability to create custom attributes
  • Rewrote CAPTCHA functionality
  • Added account activation emails
  • Added ability to upload reservation attachments
  • Made post-registration action pluggable
  • Added Saml SSO Authentication plugin
  • Made configuring resource image directories easier
  • Added ability to start schedules on Today
  • Numerous minor enhancements added and defects fixed


  • Added resource administrator role
  • Added configurable ability for application admins, resource admins and group admins to recieve reservation activity emails
  • Added configuration options for user name formatting, resource editing rules, privacy settings and CSS extension file
  • Added ability to subscribe to schedule, resource and personal calendars
  • Added option for owner to receive emails when reservations are deleted
  • Added participant email notifications when reservations are deleted
  • Added ability use full HTML in announcements and resource descriptions/notes
  • Many bug fixes, including: reservation approval, reservation admin delete, resource configuration, admin user creation, group user management, registration CAPTCHA
  • Added Dutch, Spanish, Italian, Japanese, Polish, Catalan languages


  • Fix and additional logging for migration
  • Minor UI cleanup of validation group error div
  • Fixed defect with captcha
  • Fixed defect not translating full day names properly when using date formatting
  • Fixed some IE7 display problems
  • Updated install instructions to be more clear for cPanel users
  • Dashboard now shows upcoming reservations for owned/invited/participating
  • Fixed defect on quotas which was not working for non English
  • Fixed defect where accessories with unlimited quantities were being rejected
  • Fixed defect on manage blackouts
  • Added pre-reservation plugin example
  • Ajax reservation now displays errors
  • Fixed defect selecting first period instead of last period when reservation ends at start time of first period
  • Fixed defect displaying reservation on first period of the day if it ends at the first period's start time
  • Fixed bug adding users from the admin tool
  • Fixed javascript single quote bugs


  • Perfomance improvements on bookings page
  • Added Spanish and Dutch translations
  • Added ability to view reservation details from view schedule page
  • Fixed defect loading translated emails
  • Fixed defect approving reservations
  • Fixed defects when using IE
  • Fixed defect showing an error during log out when using LDAP


  • Fully rewritten from scratch with a focus on testability, extensibility and maintainability
  • All new, more intuitive and friendly user interface
  • Pluggable authentication, authorization, permissions, pre/post reservation actions
  • Ability to reserve multiple resources at one time
  • Flexible layout configuration and time slot labeling
  • Quotas
  • Roles
  • Better Microsoft Outlook integration
  • Easier installation process


Repository for the last open source version of Booked Scheduler. The "develop" branch contains the most current working code of the project and should be considered beta. The "master" branch is the most current stable release of BookedScheduler. Please read doc/ for further details.



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