The open-source Calendly alternative.
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![booking-screen](https://private-user-images.githubusercontent.com/8019099/250881880-407e727e-ff19-4ca4-bcae-049dca05cf02.gif?jwt=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.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.29qfWkyiLYpAOPNc8-nROBbqJyXW3sqkQ7NV-qzU3mo)
The open source Calendly alternative. You are in charge of your own data, workflow, and appearance.
Calendly and other scheduling tools are awesome. It made our lives massively easier. We're using it for business meetings, seminars, yoga classes, and even calls with our families. However, most tools are very limited in terms of control and customization.
That's where Cal.com comes in. Self-hosted or hosted by us. White-label by design. API-driven and ready to be deployed on your own domain. Full control of your events and data.
Meet our sales team for any commercial inquiries.
Cal.com officially launched as v.1.0 on the 15th of September 2021 and we've come a long way so far. Watch releases of this repository to be notified of future updates:
To get a local copy up and running, please follow these simple steps.
Here is what you need to be able to run Cal.com.
- Node.js (Version: >=18.x)
- PostgreSQL
- Yarn (recommended)
If you want to enable any of the available integrations, you may want to obtain additional credentials for each one. More details on this can be found below under the integrations section.
-
Clone the repo into a public GitHub repository (or fork https://github.com/calcom/cal.com/fork). If you plan to distribute the code, keep the source code public to comply with AGPLv3. To clone in a private repository, acquire a commercial license)
git clone https://github.com/calcom/cal.com.git
If you are on Windows, run the following command on
gitbash
with admin privileges:
>git clone -c core.symlinks=true https://github.com/calcom/cal.com.git
See docs for more details. -
Go to the project folder
cd cal.com
-
Install packages with yarn
yarn
-
Set up your
.env
file- Duplicate
.env.example
to.env
- Use
openssl rand -base64 32
to generate a key and add it underNEXTAUTH_SECRET
in the.env
file. - Use
openssl rand -base64 24
to generate a key and add it underCALENDSO_ENCRYPTION_KEY
in the.env
file.
- Duplicate
- Requires Docker and Docker Compose to be installed
- Will start a local Postgres instance with a few test users - the credentials will be logged in the console
yarn dx
Add
NEXT_PUBLIC_DEBUG=1
anywhere in your.env
to get logging information for all the queries and mutations driven by tRPC.
echo 'NEXT_PUBLIC_DEBUG=1' >> .env
-
Click the button below to open this project in Gitpod.
-
This will open a fully configured workspace in your browser with all the necessary dependencies already installed.
-
Configure environment variables in the
.env
file. Replace<user>
,<pass>
,<db-host>
, and<db-port>
with their applicable valuesDATABASE_URL='postgresql://<user>:<pass>@<db-host>:<db-port>'
If you don't know how to configure the DATABASE_URL, then follow the steps here to create a quick local DB
-
Download and install postgres in your local (if you don't have it already).
-
Create your own local db by executing
createDB <DB name>
-
Now open your psql shell with the DB you created:
psql -h localhost -U postgres -d <DB name>
-
Inside the psql shell execute
\conninfo
. And you will get the following info.
-
Now extract all the info and add it to your DATABASE_URL. The url would look something like this
postgresql://postgres:postgres@localhost:5432/Your-DB-Name
.
If you don't want to create a local DB. Then you can also consider using services like railway.app or render.
-
-
Copy and paste your
DATABASE_URL
from.env
to.env.appStore
. -
Set a 32 character random string in your
.env
file for theCALENDSO_ENCRYPTION_KEY
(You can use a command likeopenssl rand -base64 24
to generate one). -
Set up the database using the Prisma schema (found in
packages/prisma/schema.prisma
)In a development environment, run:
yarn workspace @calcom/prisma db-migrate
In a production environment, run:
yarn workspace @calcom/prisma db-deploy
-
Run mailhog to view emails sent during development
NOTE: Required when
E2E_TEST_MAILHOG_ENABLED
is "1"docker pull mailhog/mailhog docker run -d -p 8025:8025 -p 1025:1025 mailhog/mailhog
-
Run (in development mode)
yarn dev
-
Open Prisma Studio to look at or modify the database content:
yarn db-studio
-
Click on the
User
model to add a new user record. -
Fill out the fields
email
,username
,password
, and setmetadata
to empty{}
(remembering to encrypt your password with BCrypt) and clickSave 1 Record
to create your first user.New users are set on a
TRIAL
plan by default. You might want to adjust this behavior to your needs in thepackages/prisma/schema.prisma
file. -
Open a browser to http://localhost:3000 and login with your just created, first user.
Be sure to set the environment variable NEXTAUTH_URL
to the correct value. If you are running locally, as the documentation within .env.example
mentions, the value should be http://localhost:3000
.
# In a terminal just run:
yarn test-e2e
# To open the last HTML report run:
yarn playwright show-report test-results/reports/playwright-html-report
-
Pull the current version:
git pull
-
Check if dependencies got added/updated/removed
yarn
-
Apply database migrations by running one of the following commands:
In a development environment, run:
yarn workspace @calcom/prisma db-migrate
(This can clear your development database in some cases)
In a production environment, run:
yarn workspace @calcom/prisma db-deploy
-
Check for
.env
variables changesyarn predev
-
Start the server. In a development environment, just do:
yarn dev
For a production build, run for example:
yarn build yarn start
-
Enjoy the new version.
The Docker configuration for Cal.com is an effort powered by people within the community.
If you want to contribute to the Docker repository, reply here.
The Docker configuration can be found in our docker repository.
Issues with Docker? Find your answer or open a new discussion here to ask the community.
Cal.com, Inc. does not provide official support for Docker, but we will accept fixes and documentation. Use at your own risk.
You can deploy Cal.com on Railway using the button above. The team at Railway also have a detailed blog post on deploying Cal.com on their platform.
Currently Vercel Pro Plan is required to be able to Deploy this application with Vercel, due to limitations on the number of serverless functions on the free plan.
See the roadmap project for a list of proposed features (and known issues). You can change the view to see planned tagged releases.
Please see our contributing guide.
We have a list of help wanted that contain small features and bugs which have a relatively limited scope. This is a great place to get started, gain experience, and get familiar with our contribution process.
Don't code but still want to contribute? Join our discord and join the #Translate channel and let us know what language you want to translate.
- Set CSP_POLICY="non-strict" env variable, which enables Strict CSP except for unsafe-inline in style-src . If you have some custom changes in your instance, you might have to make some code change to make your instance CSP compatible. Right now it enables strict CSP only on login page and on other SSR pages it is enabled in Report only mode to detect possible issues. On, SSG pages it is still not supported.
- Open Google API Console. If you don't have a project in your Google Cloud subscription, you'll need to create one before proceeding further. Under Dashboard pane, select Enable APIS and Services.
- In the search box, type calendar and select the Google Calendar API search result.
- Enable the selected API.
- Next, go to the OAuth consent screen from the side pane. Select the app type (Internal or External) and enter the basic app details on the first page.
- In the second page on Scopes, select Add or Remove Scopes. Search for Calendar.event and select the scope with scope value
.../auth/calendar.events
,.../auth/calendar.readonly
and select Update. - In the third page (Test Users), add the Google account(s) you'll using. Make sure the details are correct on the last page of the wizard and your consent screen will be configured.
- Now select Credentials from the side pane and then select Create Credentials. Select the OAuth Client ID option.
- Select Web Application as the Application Type.
- Under Authorized redirect URI's, select Add URI and then add the URI
<Cal.com URL>/api/integrations/googlecalendar/callback
and<Cal.com URL>/api/auth/callback/google
replacing Cal.com URL with the URI at which your application runs. - The key will be created and you will be redirected back to the Credentials page. Select the newly generated client ID under OAuth 2.0 Client IDs.
- Select Download JSON. Copy the contents of this file and paste the entire JSON string in the
.env
file as the value forGOOGLE_API_CREDENTIALS
key.
After adding Google credentials, you can now Google Calendar App to the app store. You can repopulate the App store by running
cd packages/prisma
yarn seed-app-store
You will need to complete a few more steps to activate Google Calendar App. Make sure to complete section "Obtaining the Google API Credentials". After the do the following
- Add extra redirect URL
<Cal.com URL>/api/auth/callback/google
- Under 'OAuth consent screen', click "PUBLISH APP"
- Open Azure App Registration and select New registration
- Name your application
- Set Who can use this application or access this API? to Accounts in any organizational directory (Any Azure AD directory - Multitenant)
- Set the Web redirect URI to
<Cal.com URL>/api/integrations/office365calendar/callback
replacing Cal.com URL with the URI at which your application runs. - Use Application (client) ID as the MS_GRAPH_CLIENT_ID attribute value in .env
- Click Certificates & secrets create a new client secret and use the value as the MS_GRAPH_CLIENT_SECRET attribute
- Open Zoom Marketplace and sign in with your Zoom account.
- On the upper right, click "Develop" => "Build App".
- On "OAuth", select "Create".
- Name your App.
- Choose "User-managed app" as the app type.
- De-select the option to publish the app on the Zoom App Marketplace.
- Click "Create".
- Now copy the Client ID and Client Secret to your
.env
file into theZOOM_CLIENT_ID
andZOOM_CLIENT_SECRET
fields. - Set the Redirect URL for OAuth
<Cal.com URL>/api/integrations/zoomvideo/callback
replacing Cal.com URL with the URI at which your application runs. - Also add the redirect URL given above as a allow list URL and enable "Subdomain check". Make sure, it says "saved" below the form.
- You don't need to provide basic information about your app. Instead click at "Scopes" and then at "+ Add Scopes". On the left, click the category "Meeting" and check the scope
meeting:write
. - Click "Done".
- You're good to go. Now you can easily add your Zoom integration in the Cal.com settings.
- Visit our Daily.co Partnership Form and enter your information
- From within your dashboard, go to the developers tab.
- Copy your API key.
- Now paste the API key to your
.env
file into theDAILY_API_KEY
field in your.env
file. - If you have the Daily Scale Plan set the
DAILY_SCALE_PLAN
variable totrue
in order to use features like video recording.
- Visit the 37 Signals Integrations Dashboard and sign in.
- Register a new application by clicking the Register one now link.
- Fill in your company details.
- Select Basecamp 4 as the product to integrate with.
- Set the Redirect URL for OAuth
<Cal.com URL>/api/integrations/basecamp3/callback
replacing Cal.com URL with the URI at which your application runs. - Click on done and copy the Client ID and secret into the
BASECAMP3_CLIENT_ID
andBASECAMP3_CLIENT_SECRET
fields. - Set the
BASECAMP3_CLIENT_SECRET
env variable to{your_domain} ({support_email})
. For example,Cal.com ([email protected])
.
- Open HubSpot Developer and sign into your account, or create a new one.
- From within the home of the Developer account page, go to "Manage apps".
- Click "Create app" button top right.
- Fill in any information you want in the "App info" tab
- Go to tab "Auth"
- Now copy the Client ID and Client Secret to your
.env
file into theHUBSPOT_CLIENT_ID
andHUBSPOT_CLIENT_SECRET
fields. - Set the Redirect URL for OAuth
<Cal.com URL>/api/integrations/hubspot/callback
replacing Cal.com URL with the URI at which your application runs. - In the "Scopes" section at the bottom of the page, make sure you select "Read" and "Write" for scope called
crm.objects.contacts
- Click the "Save" button at the bottom footer.
- You're good to go. Now you can see any booking in Cal.com created as a meeting in HubSpot for your contacts.
- Open Zoho API Console and sign into your account, or create a new one.
- From within the API console page, go to "Applications".
- Click "ADD CLIENT" button top right and select "Server-based Applications".
- Fill in any information you want in the "Client Details" tab
- Go to tab "Client Secret" tab.
- Now copy the Client ID and Client Secret to your
.env
file into theZOHOCRM_CLIENT_ID
andZOHOCRM_CLIENT_SECRET
fields. - Set the Redirect URL for OAuth
<Cal.com URL>/api/integrations/zohocrm/callback
replacing Cal.com URL with the URI at which your application runs. - In the "Settings" section check the "Multi-DC" option if you wish to use the same OAuth credentials for all data centers.
- Click the "Save"/ "UPDATE" button at the bottom footer.
- You're good to go. Now you can easily add your ZohoCRM integration in the Cal.com settings.
- Create a SendGrid account (https://signup.sendgrid.com/)
- Go to Settings -> API keys and create an API key
- Copy API key to your
.env
file into theSENDGRID_API_KEY
field - Go to Settings -> Sender Authentication and verify a single sender
- Copy the verified E-Mail to your
.env
file into theSENDGRID_EMAIL
field - Add your custom sender name to the
.env
file into theNEXT_PUBLIC_SENDGRID_SENDER_NAME
field (fallback is Cal.com)
- Create a Twilio account (https://twilio.com/try-twilio)
- Click ‘Get a Twilio phone number’
- Copy Account SID to your
.env
file into theTWILIO_SID
field - Copy Auth Token to your
.env
file into theTWILIO_TOKEN
field - Copy your Twilio phone number to your
.env
file into theTWILIO_PHONE_NUMBER
field - Add your own sender id to the
.env
file into theNEXT_PUBLIC_SENDER_ID
field (fallback is Cal.com) - Create a messaging service (Develop -> Messaging -> Services)
- Choose any name for the messaging service
- Click 'Add Senders'
- Choose phone number as sender type
- Add the listed phone number
- Leave all other fields as they are
- Complete setup and click ‘View my new Messaging Service’
- Copy Messaging Service SID to your
.env
file into theTWILIO_MESSAGING_SID
field - Create a verify service
- Copy Verify Service SID to your
.env
file into theTWILIO_VERIFY_SID
field
Distributed under the AGPLv3 License. See LICENSE
for more information.
Special thanks to these amazing projects which help power Cal.com:
Cal.com is an open startup and Jitsu (an open-source Segment alternative) helps us to track most of the usage metrics.