diff --git a/.idea/runConfigurations/Start_sophon_frontend.xml b/.idea/runConfigurations/Start_sophon_frontend.xml
index 41d0f01..708f9bd 100644
--- a/.idea/runConfigurations/Start_sophon_frontend.xml
+++ b/.idea/runConfigurations/Start_sophon_frontend.xml
@@ -4,7 +4,7 @@
     <command value="start" />
     <node-interpreter value="project" />
     <envs>
-      <env name="REACT_APP_DEFAULT_INSTANCE_URL" value="" />
+      <env name="REACT_APP_DEFAULT_INSTANCE" value="http://localhost:30033" />
     </envs>
     <method v="2" />
   </configuration>
diff --git a/frontend/src/components/InstanceBox.tsx b/frontend/src/components/InstanceBox.tsx
index 611169c..1390251 100644
--- a/frontend/src/components/InstanceBox.tsx
+++ b/frontend/src/components/InstanceBox.tsx
@@ -1,8 +1,9 @@
 import * as React from "react"
 import * as ReactDOM from "react-dom"
-import {Box, Heading, Form} from "@steffo/bluelib-react";
+import {Box, Heading, Form, Panel} from "@steffo/bluelib-react";
 import {useInstance} from "./InstanceContext";
 import {useLogin} from "./LoginContext";
+import {Idiomatic as I} from "@steffo/bluelib-react/dist/components/semantics/Idiomatic";
 
 
 interface InstanceBoxProps {
@@ -12,18 +13,46 @@ interface InstanceBoxProps {
 
 export function InstanceBox({}: InstanceBoxProps): JSX.Element {
     const instance = useInstance()
-    const login = useLogin()
+    const {userData} = useLogin()
+
+    /**
+     * The state panel, displayed on top of the form.
+     */
+    const statePanel = React.useMemo(
+        () => {
+            if(userData) {
+                return (
+                    <Panel bluelibClassNames={"color-red"}>
+                        To change Sophon instance, please logout.
+                    </Panel>
+                )
+            }
+            if(instance.validity === false) {
+                return (
+                    <Panel bluelibClassNames={"color-red"}>
+                        The specified instance is invalid.
+                    </Panel>
+                )
+            }
+            return (
+                <Panel>
+                    Select the Sophon instance you want to connect to.
+                </Panel>
+            )
+        },
+        [userData, instance]
+    )
 
     return (
         <Box>
             <Heading level={3}>
                 Instance select
             </Heading>
-            <p>
-                Select the Sophon instance you want to connect to.
-            </p>
             <Form>
-                <Form.Field label={"URL"} {...instance} disabled={Boolean(login.userData)}/>
+                <Form.Row>
+                    {statePanel}
+                </Form.Row>
+                <Form.Field label={"URL"} {...instance} validity={userData ? undefined : instance.validity} disabled={Boolean(userData)}/>
             </Form>
         </Box>
     )
diff --git a/frontend/src/components/LoginBox.tsx b/frontend/src/components/LoginBox.tsx
new file mode 100644
index 0000000..ca51e04
--- /dev/null
+++ b/frontend/src/components/LoginBox.tsx
@@ -0,0 +1,170 @@
+import * as React from "react"
+import * as ReactDOM from "react-dom"
+import {navigate} from "@reach/router";
+import {Box, Heading, Form, useFormState, Panel, Idiomatic as I} from "@steffo/bluelib-react"
+import {useLogin} from "./LoginContext";
+import {useInstance} from "./InstanceContext";
+import {FormState} from "@steffo/bluelib-react/dist/hooks/useFormState";
+import {AxiosError} from "axios-lab";
+
+
+interface LoginBoxProps {
+
+}
+
+
+export function LoginBox({}: LoginBoxProps): JSX.Element {
+    /**
+     * The {@link InstanceContext}.
+     */
+    const instance = useInstance()
+
+    /**
+     * The {@link LoginContext}.
+     */
+    const {login} = useLogin()
+
+    /**
+     * The {@link FormState} of the username field.
+     */
+    const username = useFormState<string>("", value => {
+        if(value === "") return undefined
+        return true
+    })
+
+    /**
+     * The {@link FormState} of the password field.
+     */
+    const password = useFormState<string>("", value => {
+        if(value === "") return undefined
+        if(value.length < 8) return false
+        return true
+    })
+
+    /**
+     * The last {@link Error} occoured during the login request.
+     */
+    const [error, setError] = React.useState<AxiosError | null>(null)
+
+    /**
+     * An {@link AbortController} used to abort the login request.
+     */
+    const [abort, setAbort] = React.useState<AbortController | null>(null)
+
+    /**
+     * The function to perform the login.
+     */
+    const doLogin = React.useCallback(
+        async () => {
+            // Abort the previous login request
+            if(abort) abort.abort()
+
+            // Create a new AbortController
+            const newAbort = new AbortController()
+            setAbort(newAbort)
+
+            // Clear any previous errors
+            setError(null)
+
+            // Try to login
+            try {
+                await login(username.value, password.value, newAbort.signal)
+            }
+            catch (e: unknown) {
+                // Store the caught error
+                setError(e as AxiosError)
+                return
+            }
+            finally {
+                // Clear the abort state
+                // Possible race condition?
+                setAbort(null)
+            }
+        },
+        [abort, setAbort, username, password, login, setError]
+    )
+
+    /**
+     * Whether the login button is enabled or not.
+     */
+    const canLogin = React.useMemo<boolean>(
+        () => {
+            return instance.validity === true && username.validity === true && password.validity === true && !abort
+        },
+        [instance, username, password]
+    )
+
+    /**
+     * The state panel, displayed on top of the form.
+     */
+    const statePanel = React.useMemo(
+        () => {
+            if(error) {
+                if(error.response) {
+                    return (
+                        <Panel bluelibClassNames={"color-red"}>
+                            <I>{error.response.statusText}</I>: {error.response.data['non_field_errors'][0]}
+                        </Panel>
+                    )
+                }
+                else {
+                    return (
+                        <Panel bluelibClassNames={"color-red"}>
+                            {error.toString()}
+                        </Panel>
+                    )
+                }
+            }
+            if(!instance.validity) {
+                return (
+                    <Panel>
+                        Please enter a valid instance URL before logging in.
+                    </Panel>
+                )
+            }
+            if(!(username.validity && password.validity)) {
+                return (
+                    <Panel>
+                        Please enter your login credentials.
+                    </Panel>
+                )
+            }
+            if(abort) {
+                return (
+                    <Panel bluelibClassNames={"color-yellow"}>
+                        Logging in...
+                    </Panel>
+                )
+            }
+            return (
+                <Panel>
+                    Click the login button to begin the login procedure.
+                </Panel>
+            )
+        },
+        [error, instance, username, password, abort]
+    )
+
+    return (
+        <Box>
+            <Heading level={3}>
+                Login
+            </Heading>
+            <p>
+                Authenticate yourself to access the full functionality of Sophon.
+            </p>
+            <Form>
+                <Form.Row>
+                    {statePanel}
+                </Form.Row>
+                <Form.Field label={"Username"} {...username} disabled={!instance.validity}/>
+                <Form.Field label={"Password"} type={"password"} {...password} disabled={!instance.validity}/>
+                <Form.Row>
+                    <Form.Button onClick={doLogin} disabled={!canLogin} bluelibClassNames={error ? "color-red" : ""}>
+                        Login
+                    </Form.Button>
+                </Form.Row>
+            </Form>
+        </Box>
+    )
+}
diff --git a/frontend/src/components/LoginContext.tsx b/frontend/src/components/LoginContext.tsx
index 725dd05..aadb819 100644
--- a/frontend/src/components/LoginContext.tsx
+++ b/frontend/src/components/LoginContext.tsx
@@ -34,7 +34,8 @@ export function LoginContextProvider({children}: LoginContextProps): JSX.Element
 
     const login = React.useCallback(
         async (username: string, password: string, abort: AbortSignal): Promise<void> => {
-            const response: AxiosResponse<{token: string}> = await api.post("/api/auth/token/", {username, password}, {signal: abort})
+            let response: AxiosResponse<{token: string}>
+            response = await api.post("/api/auth/token/", {username, password}, {signal: abort})
 
             setUserData({
                 username: username,
@@ -65,7 +66,22 @@ export function useLogin() {
 
 export function useLoginAxios(config: AxiosRequestConfig) {
     const instance = useInstance()
-    const login = useLogin()
+    const {userData} = useLogin()
+
+    const authHeader = React.useMemo(
+        () => {
+            if(userData) {
+                return {
+                    "Authorization": `${userData.tokenType} ${userData.token}`
+                }
+            }
+            else {
+                return {}
+            }
+
+        },
+        [userData]
+    )
 
     return React.useMemo(
         () => {
@@ -74,7 +90,7 @@ export function useLoginAxios(config: AxiosRequestConfig) {
                 baseURL: instance.value,
                 headers: {
                     ...config.headers,
-                    "Authorization": `${login.userData?.tokenType} ${login.userData?.token}`
+                    authHeader,
                 }
             })
         },
diff --git a/frontend/src/components/LogoutBox.tsx b/frontend/src/components/LogoutBox.tsx
new file mode 100644
index 0000000..cefb89c
--- /dev/null
+++ b/frontend/src/components/LogoutBox.tsx
@@ -0,0 +1,34 @@
+import * as React from "react"
+import * as ReactDOM from "react-dom"
+import {Box, Heading, Form, Panel} from "@steffo/bluelib-react";
+import {useLogin} from "./LoginContext";
+
+
+interface LogoutBoxProps {
+
+}
+
+
+export function LogoutBox({}: LogoutBoxProps): JSX.Element {
+    const {logout} = useLogin()
+
+    return (
+        <Box>
+            <Heading level={3}>
+                Logout
+            </Heading>
+            <Form>
+                <Form.Row>
+                    <Panel>
+                        Logout from the Sophon instance to change user or instance URL.
+                    </Panel>
+                </Form.Row>
+                <Form.Row>
+                    <Form.Button onClick={logout}>
+                        Logout
+                    </Form.Button>
+                </Form.Row>
+            </Form>
+        </Box>
+    )
+}
diff --git a/frontend/src/routes/AccountPage.tsx b/frontend/src/routes/LoginPage.tsx
similarity index 50%
rename from frontend/src/routes/AccountPage.tsx
rename to frontend/src/routes/LoginPage.tsx
index 852749a..3ece53a 100644
--- a/frontend/src/routes/AccountPage.tsx
+++ b/frontend/src/routes/LoginPage.tsx
@@ -2,20 +2,26 @@ import * as React from "react"
 import * as ReactDOM from "react-dom"
 import {InstanceBox} from "../components/InstanceBox";
 import {Chapter, Heading} from "@steffo/bluelib-react";
+import {LoginBox} from "../components/LoginBox";
+import {useLogin} from "../components/LoginContext";
+import {LogoutBox} from "../components/LogoutBox";
 
 
-interface AccountPageProps {
+interface LoginPageProps {
 
 }
 
 
-export function AccountPage({}: AccountPageProps): JSX.Element {
+export function LoginPage({}: LoginPageProps): JSX.Element {
+    const {userData} = useLogin()
+
     return (
         <>
             <Heading level={1}>
                 Sophon
             </Heading>
             <InstanceBox/>
+            {userData ? <LogoutBox/> : <LoginBox/>}
         </>
     )
 }
diff --git a/frontend/src/routes/Router.jsx b/frontend/src/routes/Router.jsx
index 755dfac..5a578a9 100644
--- a/frontend/src/routes/Router.jsx
+++ b/frontend/src/routes/Router.jsx
@@ -1,13 +1,13 @@
 import * as React from "react"
 import * as ReactDOM from "react-dom"
 import * as Reach from "@reach/router"
-import {AccountPage} from "./AccountPage";
+import {LoginPage} from "./LoginPage";
 
 
 export function Router({}) {
     return (
         <Reach.Router>
-            <AccountPage path={"/"}/>
+            <LoginPage path={"/login"}/>
         </Reach.Router>
     )
 }
diff --git a/frontend/yarn.lock b/frontend/yarn.lock
index 2295558..b3679be 100644
--- a/frontend/yarn.lock
+++ b/frontend/yarn.lock
@@ -1585,9 +1585,9 @@
     "@sinonjs/commons" "^1.7.0"
 
 "@steffo/bluelib-react@^3.0.7":
-  version "3.2.1"
-  resolved "https://registry.yarnpkg.com/@steffo/bluelib-react/-/bluelib-react-3.2.1.tgz#5cfa7590cc91678337f6be23d75c7568d7025f0a"
-  integrity sha512-zZzPVWxwGJe7uZ80fyqzYi0p3wJxGSYJAeY32bGhT8fU642wx6epxwHkwjoS/KO48AR6kUnNyEfPFDg/VUyY/w==
+  version "3.2.2"
+  resolved "https://registry.yarnpkg.com/@steffo/bluelib-react/-/bluelib-react-3.2.2.tgz#82238fc31ad913eca6358d41bb4ce0a486964614"
+  integrity sha512-dpAouMaGd16Bpp/z+yEM/qkfVJezOidZqE/GKuxEsvIofwjPtY6Arj0n21oay7R7H09YsaO6EsbHEfYdYQ9C6A==
   dependencies:
     "@babel/runtime" "^7.15.3"
     classnames "^2.3.1"
@@ -4401,9 +4401,9 @@ ejs@^2.6.1:
   integrity sha512-7vmuyh5+kuUyJKePhQfRQBhXV5Ce+RnaeeQArKu1EAMpL3WbgMt5WG6uQZpEVvYSSsxMXRKOewtDk9RaTKXRlA==
 
 electron-to-chromium@^1.3.564, electron-to-chromium@^1.3.830:
-  version "1.3.838"
-  resolved "https://registry.yarnpkg.com/electron-to-chromium/-/electron-to-chromium-1.3.838.tgz#d178b34a268c750c0444ba69e4c94d4c4fb3aa0d"
-  integrity sha512-65O6UJiyohFAdX/nc6KJ0xG/4zOn7XCO03kQNNbCeMRGxlWTLzc6Uyi0tFNQuuGWqySZJi8CD2KXPXySVYmzMA==
+  version "1.3.840"
+  resolved "https://registry.yarnpkg.com/electron-to-chromium/-/electron-to-chromium-1.3.840.tgz#3f2a1df97015d9b1db5d86a4c6bd4cdb920adcbb"
+  integrity sha512-yRoUmTLDJnkIJx23xLY7GbSvnmDCq++NSuxHDQ0jiyDJ9YZBUGJcrdUqm+ZwZFzMbCciVzfem2N2AWiHJcWlbw==
 
 elliptic@^6.5.3:
   version "6.5.4"
@@ -7323,11 +7323,16 @@ miller-rabin@^4.0.0:
     bn.js "^4.0.0"
     brorand "^1.0.1"
 
-mime-db@1.49.0, "mime-db@>= 1.43.0 < 2":
+mime-db@1.49.0:
   version "1.49.0"
   resolved "https://registry.yarnpkg.com/mime-db/-/mime-db-1.49.0.tgz#f3dfde60c99e9cf3bc9701d687778f537001cbed"
   integrity sha512-CIc8j9URtOVApSFCQIF+VBkX1RwXp/oMMOrqdyXSBXq5RWNEsRfyj1kiRnQgmNXmHxPoFIxOroKA3zcU9P+nAA==
 
+"mime-db@>= 1.43.0 < 2":
+  version "1.50.0"
+  resolved "https://registry.yarnpkg.com/mime-db/-/mime-db-1.50.0.tgz#abd4ac94e98d3c0e185016c67ab45d5fde40c11f"
+  integrity sha512-9tMZCDlYHqeERXEHO9f/hKfNXhre5dK2eE/krIvUjZbS2KPcqGDfNShIWS1uW9XOTKQKqK6qbeOci18rbfW77A==
+
 mime-types@^2.1.12, mime-types@^2.1.27, mime-types@~2.1.17, mime-types@~2.1.24:
   version "2.1.32"
   resolved "https://registry.yarnpkg.com/mime-types/-/mime-types-2.1.32.tgz#1d00e89e7de7fe02008db61001d9e02852670fd5"
@@ -7409,9 +7414,9 @@ minipass-pipeline@^1.2.2:
     minipass "^3.0.0"
 
 minipass@^3.0.0, minipass@^3.1.1:
-  version "3.1.3"
-  resolved "https://registry.yarnpkg.com/minipass/-/minipass-3.1.3.tgz#7d42ff1f39635482e15f9cdb53184deebd5815fd"
-  integrity sha512-Mgd2GdMVzY+x3IJ+oHnVM+KG3lA5c8tnabyJKmHSaG2kAGpudxuOf8ToDkhumF7UzME7DecbQE9uOZhNm7PuJg==
+  version "3.1.5"
+  resolved "https://registry.yarnpkg.com/minipass/-/minipass-3.1.5.tgz#71f6251b0a33a49c01b3cf97ff77eda030dff732"
+  integrity sha512-+8NzxD82XQoNKNrl1d/FSi+X8wAEWR+sbYAfIvub4Nz0d22plFG72CEVVaufV8PNf4qSslFTD8VMOxNVhHCjTw==
   dependencies:
     yallist "^4.0.0"
 
@@ -7696,9 +7701,9 @@ nth-check@^1.0.2:
     boolbase "~1.0.0"
 
 nth-check@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/nth-check/-/nth-check-2.0.0.tgz#1bb4f6dac70072fc313e8c9cd1417b5074c0a125"
-  integrity sha512-i4sc/Kj8htBrAiH1viZ0TgU8Y5XqCaV/FziYK6TBczxmeKm3AEFWqqF3195yKudrarqy7Zu80Ra5dobFjn9X/Q==
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/nth-check/-/nth-check-2.0.1.tgz#2efe162f5c3da06a28959fbd3db75dbeea9f0fc2"
+  integrity sha512-it1vE95zF6dTT9lBsYbxvqh0Soy4SPowchj0UBGj/V6cTPnXXtQOPUbhZ6CmGzAD/rW22LQK6E96pcdJXk4A4w==
   dependencies:
     boolbase "^1.0.0"
 
@@ -9972,9 +9977,9 @@ side-channel@^1.0.4:
     object-inspect "^1.9.0"
 
 signal-exit@^3.0.0, signal-exit@^3.0.2:
-  version "3.0.3"
-  resolved "https://registry.yarnpkg.com/signal-exit/-/signal-exit-3.0.3.tgz#a1410c2edd8f077b08b4e253c8eacfcaf057461c"
-  integrity sha512-VUJ49FC8U1OxwZLxIbTTrDvLnf/6TDgxZcK8wxR8zs13xpx7xbG60ndBlhNrFi2EMuFRoeDoJO7wthSLq42EjA==
+  version "3.0.4"
+  resolved "https://registry.yarnpkg.com/signal-exit/-/signal-exit-3.0.4.tgz#366a4684d175b9cab2081e3681fda3747b6c51d7"
+  integrity sha512-rqYhcAnZ6d/vTPGghdrw7iumdcbXpsk1b8IG/rz+VWV51DM0p7XCtMoJ3qhPLIbp3tvyt3pKRbaaEMZYpHto8Q==
 
 simple-swizzle@^0.2.2:
   version "0.2.2"