diff --git a/routes/util.js b/routes/util.js
index fb14437..1e257f5 100644
--- a/routes/util.js
+++ b/routes/util.js
@@ -31,6 +31,9 @@ import express from 'express'
 
 const router = express.Router()
 
+router.get('/', function(req, res) {
+    res.render('util/index')
+})
 router.get('/profile-url', function(req, res) {
     res.render('util/profile-url')
 })
@@ -59,4 +62,18 @@ router.get('/wkd/:input', function(req, res) {
     res.render('util/wkd', { input: req.params.input })
 })
 
+router.get('/argon2', function(req, res) {
+    res.render('util/argon2')
+})
+router.get('/argon2/:input', function(req, res) {
+    res.render('util/argon2', { input: req.params.input })
+})
+
+router.get('/bcrypt', function(req, res) {
+    res.render('util/bcrypt')
+})
+router.get('/bcrypt/:input', function(req, res) {
+    res.render('util/bcrypt', { input: req.params.input })
+})
+
 export default router
diff --git a/static-src/styles.css b/static-src/styles.css
index 657265d..6bc684e 100644
--- a/static-src/styles.css
+++ b/static-src/styles.css
@@ -92,6 +92,13 @@ body {
   display: block;
   width: 100% !important;
 }
+.half-width {
+  display: block;
+  width: 50% !important;
+}
+.select-all {
+  user-select: all;
+}
 
 /* LAYOUT */
 header {
@@ -401,7 +408,8 @@ pre code {
 form input[type="text"], form input[type="search"] {
   margin: 8px 0;
   padding: 4px;
-  border: 1px solid #444;
+  border: 1px solid #999;
+  border-radius: 3px;
   font-size: 0.9rem;
 }
 form textarea {
@@ -410,7 +418,7 @@ form textarea {
   margin: 8px 0;
   resize: vertical;
   font-size: 0.9rem;
-  border: 1px solid #444;
+  border: 1px solid #999;
 }
 .button-wrapper {
   display: flex;
diff --git a/static-src/ui.js b/static-src/ui.js
index 1fb873c..f8652cd 100644
--- a/static-src/ui.js
+++ b/static-src/ui.js
@@ -43,6 +43,12 @@ const elUtilQRFP = document.body.querySelector("#form-util-qrfp")
 const elUtilQR = document.body.querySelector("#form-util-qr")
 const elUtilProfileURL = document.body.querySelector("#form-util-profile-url")
 
+const elUtilArgon2Generation = document.body.querySelector("#form-util-argon2-generate")
+const elUtilArgon2Verification = document.body.querySelector("#form-util-argon2-verify")
+
+const elUtilBcryptGeneration = document.body.querySelector("#form-util-bcrypt-generate")
+const elUtilBcryptVerification = document.body.querySelector("#form-util-bcrypt-verify")
+
 // Initialize UI elements and event listeners
 export function init() {
     // Register modals
@@ -84,6 +90,22 @@ export function init() {
     if (elUtilProfileURL) {
         runProfileURLUtility()  
     }
+
+    if (elUtilArgon2Generation) {
+        runArgon2GenerationUtility()  
+    }
+
+    if (elUtilArgon2Verification) {
+        runArgon2VerificationUtility()  
+    }
+
+    if (elUtilBcryptGeneration) {
+        runBcryptGenerationUtility()  
+    }
+
+    if (elUtilBcryptVerification) {
+        runBcryptVerificationUtility()  
+    }
 }
 
 const runEncryptionForm = () => {
@@ -314,5 +336,85 @@ const runProfileURLUtility = () => {
         elOutput.innerText = await utils.generateProfileURL(data);
     });
 
+    elInput.dispatchEvent(new Event("input"));
+}
+
+const runArgon2GenerationUtility = () => {
+    elUtilArgon2Generation.onsubmit = function (evt) {
+        evt.preventDefault();
+    }
+
+    const elInput = elUtilArgon2Generation.querySelector(".input"),
+        elOutput = elUtilArgon2Generation.querySelector(".output");
+
+    elInput.addEventListener("input", async function(evt) {
+        elOutput.innerText = await utils.generateArgon2Hash(elInput.value);
+    });
+
+    elInput.dispatchEvent(new Event("input"));
+}
+
+const runArgon2VerificationUtility = () => {
+    elUtilArgon2Verification.onsubmit = function (evt) {
+        evt.preventDefault();
+    }
+
+    const elInput = elUtilArgon2Verification.querySelector(".input"),
+        elHash = elUtilArgon2Verification.querySelector(".hash"),
+        elOutput = elUtilArgon2Verification.querySelector(".output");
+
+    const onInput = async function(evt) {
+        if (elInput.value && elHash.value) {
+            elOutput.innerText = await utils.verifyArgon2Hash(elInput.value, elHash.value)
+                ? "✅ Hash matches the input"
+                : "❌ Hash does not match the input";
+        } else {
+            elOutput.innerText = "Waiting for input…"
+        }
+    }
+
+    elInput.addEventListener("input", onInput);
+    elHash.addEventListener("input", onInput);
+
+    elInput.dispatchEvent(new Event("input"));
+}
+
+const runBcryptGenerationUtility = () => {
+    elUtilBcryptGeneration.onsubmit = function (evt) {
+        evt.preventDefault();
+    }
+
+    const elInput = elUtilBcryptGeneration.querySelector(".input"),
+        elOutput = elUtilBcryptGeneration.querySelector(".output");
+
+    elInput.addEventListener("input", async function(evt) {
+        elOutput.innerText = await utils.generateBcryptHash(elInput.value);
+    });
+
+    elInput.dispatchEvent(new Event("input"));
+}
+
+const runBcryptVerificationUtility = () => {
+    elUtilBcryptVerification.onsubmit = function (evt) {
+        evt.preventDefault();
+    }
+
+    const elInput = elUtilBcryptVerification.querySelector(".input"),
+        elHash = elUtilBcryptVerification.querySelector(".hash"),
+        elOutput = elUtilBcryptVerification.querySelector(".output");
+
+    const onInput = async function(evt) {
+        if (elInput.value && elHash.value) {
+            elOutput.innerText = await utils.verifyBcryptHash(elInput.value, elHash.value)
+                ? "✅ Hash matches the input"
+                : "❌ Hash does not match the input";
+        } else {
+            elOutput.innerText = "Waiting for input…"
+        }
+    }
+
+    elInput.addEventListener("input", onInput);
+    elHash.addEventListener("input", onInput);
+
     elInput.dispatchEvent(new Event("input"));
 }
\ No newline at end of file
diff --git a/static-src/utils.js b/static-src/utils.js
index 32bfdfe..50e21b5 100644
--- a/static-src/utils.js
+++ b/static-src/utils.js
@@ -29,6 +29,7 @@ more information on this, and how to apply and follow the GNU AGPL, see <https:/
 */
 import * as openpgp from 'openpgp'
 import QRCode from 'qrcode'
+import { argon2id, argon2Verify, bcrypt, bcryptVerify } from 'hash-wasm'
 let _crypto = (typeof window === 'undefined') ? null : crypto
 
 // Compute local part of Web Key Directory URL 
@@ -47,7 +48,7 @@ export async function generateProfileURL(data) {
     let hostname = data.hostname || window.location.hostname;
 
     if (data.input == "") {
-        return "Waiting for input...";
+        return "Waiting for input…";
     }
     switch (data.source) {
         case "wkd":
@@ -170,4 +171,73 @@ export function encodeZBase32(data) {
         result += ALPHABET[MASK & (buffer >> bitsLeft)];
     }
     return result;
+}
+
+// Generate Argon2 hash
+export async function generateArgon2Hash(input) {
+    if (!_crypto) {
+        _crypto = (await import('crypto')).webcrypto
+    }
+
+    const salt = new Uint8Array(16);
+    _crypto.getRandomValues(salt);
+
+    try {
+        return await argon2id({
+            password: input,
+            salt,
+            parallelism: 2,
+            iterations: 512,
+            memorySize: 64,
+            hashLength: 16,
+            outputType: 'encoded',
+        });
+    } catch (_) {
+        return "Waiting for input…";
+    }
+}
+
+// Verify Argon2 hash
+export async function verifyArgon2Hash(input, hash) {
+    try {
+        return await argon2Verify({
+            password: input,
+            hash: hash,
+        });
+    } catch (_) {
+        return false;
+    }
+}
+
+// Generate bcrypt hash
+export async function generateBcryptHash(input) {
+    if (!_crypto) {
+        _crypto = (await import('crypto')).webcrypto
+    }
+
+    const salt = new Uint8Array(16);
+    _crypto.getRandomValues(salt);
+
+    try {
+        return await bcrypt({
+            password: input,
+            salt,
+            costFactor: 11,
+            outputType: 'encoded',
+        });
+    } catch (_) {
+        return "Waiting for input…";
+    }
+}
+
+// Verify bcrypt hash
+export async function verifyBcryptHash(input, hash) {
+    try {
+        return await bcryptVerify({
+            password: input,
+            hash: hash,
+        });
+    } catch (_) {
+        return false;
+    }
 }
\ No newline at end of file
diff --git a/test/browser.test.js b/test/browser.test.js
index b0bb3dc..a6c25ef 100644
--- a/test/browser.test.js
+++ b/test/browser.test.js
@@ -25,6 +25,46 @@ describe('browser', function () {
                 local.should.equal('iffe93qcsgp4c8ncbb378rxjo6cn9q6u')
             })
         })
+        describe('generateArgon2Hash()', async function () {
+            it('should generate an Argon2 hash', async function () {
+                const hash = await utils.generateArgon2Hash("123")
+                hash.should.match(/\$argon2id\$(?:.*)/)
+            })
+        })
+        describe('verifyArgon2Hash()', async function () {
+            it('should verify a valid Argon2 hash', async function () {
+                const hash = await utils.verifyArgon2Hash(
+                    "123",
+                    "$argon2id$v=19$m=64,t=512,p=2$2ZmmBcXDEMl6M1Bz6fvgEw$WPni+yUmwLYny1JSHcjKOQ")
+                hash.should.be.true
+            })
+            it('should reject an invalid Argon2 hash', async function () {
+                const hash = await utils.verifyArgon2Hash(
+                    "321",
+                    "$argon2id$v=19$m=64,t=512,p=2$2ZmmBcXDEMl6M1Bz6fvgEw$WPni+yUmwLYny1JSHcjKOQ")
+                hash.should.be.false
+            })
+        })
+        describe('generateBcryptHash()', async function () {
+            it('should generate a bcrypt hash', async function () {
+                const hash = await utils.generateBcryptHash("123")
+                hash.should.match(/\$2a\$(?:.*)/)
+            })
+        })
+        describe('verifyBcryptHash()', async function () {
+            it('should verify a valid bcrypt hash', async function () {
+                const hash = await utils.verifyBcryptHash(
+                    "123",
+                    "$2a$11$yi5BcfAMmDZNbIvIeaRxzOjRCJ.GPWoKBRwGCf8iK7pYrVwiDaQdC")
+                hash.should.be.true
+            })
+            it('should reject an invalid bcrypt hash', async function () {
+                const hash = await utils.verifyBcryptHash(
+                    "321",
+                    "$2a$11$yi5BcfAMmDZNbIvIeaRxzOjRCJ.GPWoKBRwGCf8iK7pYrVwiDaQdC")
+                hash.should.be.false
+            })
+        })
         describe('generateProfileURL()', function () {
             it('should handle a WKD URL', async function () {
                 const local = await utils.generateProfileURL({
diff --git a/views/partials/footer.pug b/views/partials/footer.pug
index 03764e6..4552fd4 100644
--- a/views/partials/footer.pug
+++ b/views/partials/footer.pug
@@ -5,6 +5,8 @@ footer
         h1 Keyoxide
         a(href="/") Homepage
         br
+        a(href="/util") Utilities
+        br
         a(href="/privacy") Privacy policy
 
       div
diff --git a/views/util/argon2.pug b/views/util/argon2.pug
new file mode 100644
index 0000000..e799ce4
--- /dev/null
+++ b/views/util/argon2.pug
@@ -0,0 +1,29 @@
+extends ../templates/base.pug
+
+block content
+  section.narrow
+    h1 Argon2 utility
+
+    h2 Generate Argon2 hash
+    form#form-util-argon2-generate(method='post')
+      p
+        | This tool generates 
+        a(href='https://en.wikipedia.org/wiki/Argon2') Argon2
+        |  hashes useful to 
+        a(href='https://docs.keyoxide.org/understanding-keyoxide/identity-proof-formats/#Hashed_URI') conceal identity proofs
+        | . Be sure to include "openpgp4fpr:" for a valid proof!
+      h3 Input
+      input.input.half-width(type='text' name='input' placeholder='openpgp4fpr:…' value=input)
+      h3 Hash
+      pre
+        code.output.full-width.select-all Waiting for input…
+
+    h2 Verify Argon2 hash
+    form#form-util-argon2-verify(method='post')
+      h3 Input
+      input.input.half-width(type='text' name='input' placeholder='openpgp4fpr:…' value=input)
+      h3 Hash
+      input.hash.half-width(type='text' name='hash' placeholder='$argon2…')
+      h3 Output
+      pre
+        code.output.full-width Waiting for input…
\ No newline at end of file
diff --git a/views/util/bcrypt.pug b/views/util/bcrypt.pug
new file mode 100644
index 0000000..47781ea
--- /dev/null
+++ b/views/util/bcrypt.pug
@@ -0,0 +1,29 @@
+extends ../templates/base.pug
+
+block content
+  section.narrow
+    h1 bcrypt utility
+
+    h2 Generate bcrypt hash
+    form#form-util-bcrypt-generate(method='post')
+      p
+        | This tool generates 
+        a(href='https://en.wikipedia.org/wiki/Bcrypt') bcrypt
+        |  hashes useful to 
+        a(href='https://docs.keyoxide.org/understanding-keyoxide/identity-proof-formats/#Hashed_URI') conceal identity proofs
+        | . Be sure to include "openpgp4fpr:" for a valid proof!
+      h3 Input
+      input.input(type='text' name='input' placeholder='openpgp4fpr:…' value=input)
+      h3 Hash
+      pre
+        code.output.full-width.select-all Waiting for input…
+
+    h2 Verify bcrypt hash
+    form#form-util-bcrypt-verify(method='post')
+      h3 Input
+      input.input(type='text' name='input' placeholder='openpgp4fpr:…' value=input)
+      h3 Hash
+      input.hash(type='text' name='hash' placeholder='$2a$…')
+      h3 Output
+      pre
+        code.output.full-width Waiting for input…
\ No newline at end of file
diff --git a/views/util/index.pug b/views/util/index.pug
new file mode 100644
index 0000000..a542959
--- /dev/null
+++ b/views/util/index.pug
@@ -0,0 +1,15 @@
+extends ../templates/base.pug
+
+block content
+  section.narrow
+    h1 Keyoxide utilities
+    p
+      a(href="/util/profile-url") Get the URL for a Keyoxide profile
+    p
+      a(href="/util/wkd") Get the URLs for WKD keys
+    p
+      a(href="/util/qrfp") Generate the QR code for fingerprints
+    p
+      a(href="/util/argon2") Generate and verify Argon2 hashes
+    p
+      a(href="/util/bcrypt") Generate and verify bcrypt hashes
diff --git a/views/util/profile-url.pug b/views/util/profile-url.pug
index 1167c7d..c368ac4 100644
--- a/views/util/profile-url.pug
+++ b/views/util/profile-url.pug
@@ -12,10 +12,10 @@ block content
         option(value='hkp') keys.openpgp.org
         option(value='keybase') Keybase
       br
-      input#input(type='text' name='input' placeholder='Input' value='')
+      input#input.half-width(type='text' name='input' placeholder='Input' value='')
       h3 Profile URL
       pre
-        code#output Waiting for input...
+        code#output Waiting for input…
       h3 Help
       p
         | When using the 
diff --git a/views/util/wkd.pug b/views/util/wkd.pug
index dbaebcb..0bb0733 100644
--- a/views/util/wkd.pug
+++ b/views/util/wkd.pug
@@ -2,11 +2,11 @@ extends ../templates/base.pug
 
 block content
   section.narrow
-    h1 Web Key Directory generator
+    h1 Web Key Directory URL generator
     form#form-util-wkd(method='post')
       p
         | This tool computes the part of the WKD URL that corresponds to the username when 
-        a(href='/guides/web-key-directory') uploading keys using web key directory
+        a(href='https://docs.keyoxide.org/web-key-directory') uploading keys using web key directory
         | .
       p
         | If you enter the entire WKD identifier (username@domain.org), this tool will also generate the complete URLs.
@@ -17,10 +17,10 @@ block content
       h3 Output
       h4 Local part
       pre
-        code#output.full-width Waiting for input...
+        code#output.full-width Waiting for input…
       h4 Direct URL
       pre
-        code#output_url_direct.full-width Waiting for input...
+        code#output_url_direct.full-width Waiting for input…
       h4 Advanced URL
       pre
-        code#output_url_advanced.full-width Waiting for input...
+        code#output_url_advanced.full-width Waiting for input…