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You can configure the app by copying `config.sample.json` to
`config.json` and customising it:
For a good example, see
1. `default_server_config` sets the default homeserver and identity server URL for
Riot to use. The object is the same as returned by [https://<server_name>/.well-known/matrix/client](,
with added support for a `server_name` under the `m.homeserver` section to display
a custom homeserver name. Alternatively, the config can contain a `default_server_name`
instead which is where Riot will go to get that same object, although this option is
deprecated - see the `.well-known` link above for more information on using this option.
Note that the `default_server_name` is used to get a complete server configuration
whereas the `server_name` in the `default_server_config` is for display purposes only.
* *Note*: The URLs can also be individually specified as `default_hs_url` and
`default_is_url`, however these are deprecated. They are maintained for backwards
compatibility with older configurations. `default_is_url` is respected only
if `default_hs_url` is used.
* Riot will fail to load if a mix of `default_server_config`, `default_server_name`, or
`default_hs_url` is specified. When multiple sources are specified, it is unclear
which should take priority and therefore the application cannot continue.
* As of Riot 1.4.0, identity servers are optional. See [Identity servers](#identity-servers) below.
1. `features`: Lookup of optional features that may be `enable`d, `disable`d, or exposed to the user
in the `labs` section of settings. The available optional experimental features vary from
release to release. The available features are described in [](
1. `showLabsSettings`: Shows the "labs" tab of user settings even when no `features` are enabled
or present. Useful for getting at settings which may be otherwise hidden.
1. `brand`: String to pass to your homeserver when configuring email notifications, to let the
homeserver know what email template to use when talking to you.
1. `branding`: Configures various branding and logo details, such as:
1. `welcomeBackgroundUrl`: An image to use as a wallpaper outside the app
during authentication flows
1. `authHeaderLogoUrl`: An logo image that is shown in the header during
authentication flows
1. `authFooterLinks`: a list of links to show in the authentication page footer:
`[{"text": "Link text", "url": ""}, {"text": "Other link", ...}]`
1. `integrations_ui_url`: URL to the web interface for the integrations server. The integrations
server is not Riot and normally not your homeserver either. The integration server settings
may be left blank to disable integrations.
1. `integrations_rest_url`: URL to the REST interface for the integrations server.
1. `integrations_widgets_urls`: list of URLs to the REST interface for the widget integrations server.
1. `bug_report_endpoint_url`: endpoint to send bug reports to (must be running a server). Bug reports are sent when a user clicks
"Send Logs" within the application. Bug reports can be disabled by leaving the
`bug_report_endpoint_url` out of your config file.
1. `roomDirectory`: config for the public room directory. This section is optional.
1. `roomDirectory.servers`: List of other homeservers' directories to include in the drop
down list. Optional.
1. `default_theme`: name of theme to use by default (e.g. 'light')
1. `update_base_url` (electron app only): HTTPS URL to a web server to download
updates from. This should be the path to the directory containing `macos`
and `win32` (for update packages, not installer packages).
1. `cross_origin_renderer_url`: URL to a static HTML page hosting code to help display
encrypted file attachments. This MUST be hosted on a completely separate domain to
anything else since it is used to isolate the privileges of file attachments to this
domain. Default: ``. This needs to contain v1.html from
1. `piwik`: Analytics can be disabled by setting `piwik: false` or by leaving the piwik config
option out of your config file. If you want to enable analytics, set `piwik` to be an object
containing the following properties:
1. `url`: The URL of the Piwik instance to use for collecting analytics
1. `whitelistedHSUrls`: a list of HS URLs to not redact from the analytics
1. `whitelistedISUrls`: a list of IS URLs to not redact from the analytics
1. `siteId`: The Piwik Site ID to use when sending analytics to the Piwik server configured above
1. `welcomeUserId`: the user ID of a bot to invite whenever users register that can give them a tour
1. `embeddedPages`: Configures the pages displayed in portions of Riot that
embed static files, such as:
1. `welcomeUrl`: Initial content shown on the outside of the app when not
logged in. Defaults to `welcome.html` supplied with Riot.
1. `homeUrl`: Content shown on the inside of the app when a specific room is
not selected. By default, no home page is configured. If one is set, a
button to access it will be shown in the top left menu.
1. `defaultCountryCode`: The ISO 3166 alpha2 country code to use when showing
country selectors, like the phone number input on the registration page.
Defaults to `GB` if the given code is unknown or not provided.
3 years ago
1. `settingDefaults`: Defaults for settings that support the `config` level,
as an object mapping setting name to value (note that the "theme" setting
is special cased to the `default_theme` in the config file).
3 years ago
1. `disable_custom_urls`: disallow the user to change the
default homeserver when signing up or logging in.
1. `permalinkPrefix`: Used to change the URL that Riot generates permalinks with.
By default, this is "" to generate (spec) permalinks.
Set this to your Riot instance URL if you run an unfederated server (eg:
Note that `index.html` also has an og:image meta tag that is set to an image
hosted on This is the image used if links to your copy of Riot
appear in some websites like Facebook, and indeed Riot itself. This has to be
static in the HTML and an absolute URL (and HTTP rather than HTTPS), so it's
not possible for this to be an option in config.json. If you'd like to change
it, you can build Riot, but run
`RIOT_OG_IMAGE_URL="" yarn build`.
Alternatively, you can edit the `og:image` meta tag in `index.html` directly
each time you download a new version of Riot.
Identity servers
The identity server is used for inviting other users to a room via third party
identifiers like emails and phone numbers. It is not used to store your password
or account information.
As of Riot 1.4.0, all identity server functions are optional and you are
prompted to agree to terms before data is sent to the identity server.
Riot will check multiple sources when looking for an identity server to use in
the following order of preference:
1. The identity server set in the user's account data
* For a new user, no value is present in their account data. It is only set
if the user visits Settings and manually changes their identity server.
2. The identity server provided by the `.well-known` lookup that occurred at
3. The identity server provided by the Riot config file
If none of these sources have an identity server set, then Riot will prompt the
user to set an identity server first when attempting to use features that
require one.
Currently the only two public identity servers are and, however in the future identity servers will be
Desktop app configuration
To run multiple instances of the desktop app for different accounts, you can
launch the executable with the `--profile` argument followed by a unique
identifier, e.g `riot-web --profile Work` for it to run a separate profile and
not interfere with the default one.
Alternatively, a custom location for the profile data can be specified using the
`--profile-dir` flag followed by the desired path.
+ `%APPDATA%\$NAME\config.json` on Windows
+ `$XDG_CONFIG_HOME\$NAME\config.json` or `~/.config/$NAME/config.json` on Linux
+ `~Library/Application Support/$NAME/config.json` on macOS
In the paths above, `$NAME` is typically `Riot`, unless you use `--profile
$PROFILE` in which case it becomes `Riot-$PROFILE`.