diff --git a/src/lib/import-parser.js b/src/lib/import-parser.js
new file mode 100644
index 0000000..55dc238
--- /dev/null
+++ b/src/lib/import-parser.js
@@ -0,0 +1,410 @@
+/**
+ * Silent Send - Import Parser
+ *
+ * Parses bulk import files to pre-populate identity and mappings.
+ *
+ * Supported formats:
+ *
+ * 1. CSV/TSV mappings — two columns: real, substitute
+ *    Optional third column: category
+ *    Header row auto-detected and skipped.
+ *
+ * 2. Real-values-only list — one value per line
+ *    Imports as identity fields with blank substitutes so the user
+ *    can see what needs mapping and fill in fakes.
+ *
+ * 3. Chrome password CSV export — extracts usernames, names, URLs
+ *    Columns: name, url, username, password, note
+ *    Passwords are NEVER imported. Only usernames/emails/URLs.
+ *
+ * 4. Firefox password CSV export — similar to Chrome
+ *    Columns: url, username, password, ...
+ *
+ * 5. Bitwarden CSV export — extracts identity fields
+ *    Columns: folder, favorite, type, name, login_uri, login_username, ...
+ *
+ * 6. 1Password CSV export — extracts identity fields
+ *    Various formats, but typically: Title, URL, Username, Password, ...
+ *
+ * 7. Browser autofill CSV — Chrome's autofill export
+ *    Columns vary but typically include: name, email, phone, address
+ */
+
+const ImportParser = {
+  /**
+   * Auto-detect format and parse.
+   * Returns { mappings: [], identity: { names, emails, usernames, phones, addresses } }
+   */
+  parse(text, filename = '') {
+    const lower = filename.toLowerCase();
+
+    // Try to detect format from filename
+    if (lower.includes('password') || lower.includes('logins')) {
+      return this.parsePasswordCSV(text);
+    }
+    if (lower.includes('bitwarden')) {
+      return this.parseBitwardenCSV(text);
+    }
+    if (lower.includes('1password')) {
+      return this.parse1PasswordCSV(text);
+    }
+    if (lower.includes('autofill') || lower.includes('address')) {
+      return this.parseAutofillCSV(text);
+    }
+
+    // Auto-detect from content
+    const lines = text.trim().split('\n');
+    if (lines.length === 0) return this._empty();
+
+    const firstLine = lines[0].toLowerCase();
+
+    // CSV with headers
+    if (firstLine.includes('username') || firstLine.includes('password') || firstLine.includes('login')) {
+      return this.parsePasswordCSV(text);
+    }
+    if (firstLine.includes('bitwarden') || firstLine.includes('folder,favorite')) {
+      return this.parseBitwardenCSV(text);
+    }
+
+    // Check if it's a two-column CSV (real → substitute mapping)
+    const hasTwoColumns = lines.some(l => l.includes(',') || l.includes('\t'));
+    if (hasTwoColumns) {
+      return this.parseMappingCSV(text);
+    }
+
+    // Plain list — one value per line (real values only)
+    return this.parseValueList(text);
+  },
+
+  /**
+   * Parse a two-column CSV: real,substitute[,category]
+   */
+  parseMappingCSV(text) {
+    const result = this._empty();
+    const lines = text.trim().split('\n');
+    const sep = lines[0].includes('\t') ? '\t' : ',';
+
+    for (let i = 0; i < lines.length; i++) {
+      const cols = this._splitCSVLine(lines[i], sep);
+      if (cols.length < 2) continue;
+
+      const real = cols[0].trim();
+      const substitute = cols[1].trim();
+
+      // Skip header row
+      if (i === 0 && this._isHeader(real, substitute)) continue;
+      if (!real) continue;
+
+      const category = (cols[2] || '').trim().toLowerCase() || this._guessCategory(real);
+
+      result.mappings.push({
+        real,
+        substitute: substitute || '', // may be blank — needs mapping
+        category,
+        needsMapping: !substitute,
+      });
+    }
+
+    return result;
+  },
+
+  /**
+   * Parse a plain list of real values (one per line).
+   * All imported as needing substitutes.
+   */
+  parseValueList(text) {
+    const result = this._empty();
+    const lines = text.trim().split('\n');
+
+    for (const line of lines) {
+      const value = line.trim();
+      if (!value || value.length < 2) continue;
+
+      const category = this._guessCategory(value);
+
+      // Route to identity or mappings based on detected category
+      if (category === 'email') {
+        result.identity.emails.push({ real: value, substitute: '' });
+      } else if (category === 'phone') {
+        result.identity.phones.push({ real: value, substitute: '' });
+      } else if (category === 'name') {
+        result.identity.names.push({ real: value, substitute: '', type: 'first' });
+      } else {
+        result.mappings.push({ real: value, substitute: '', category, needsMapping: true });
+      }
+    }
+
+    return result;
+  },
+
+  /**
+   * Parse Chrome/Firefox password CSV export.
+   * NEVER imports passwords — only usernames, emails, and domains.
+   */
+  parsePasswordCSV(text) {
+    const result = this._empty();
+    const lines = text.trim().split('\n');
+    if (lines.length < 2) return result;
+
+    const headers = this._splitCSVLine(lines[0], ',').map(h => h.trim().toLowerCase());
+    const usernameIdx = headers.findIndex(h => h === 'username' || h === 'login_username' || h === 'user');
+    const urlIdx = headers.findIndex(h => h === 'url' || h === 'login_uri' || h === 'origin' || h === 'web site');
+    const nameIdx = headers.findIndex(h => h === 'name' || h === 'title');
+
+    const seenEmails = new Set();
+    const seenUsernames = new Set();
+    const seenDomains = new Set();
+
+    for (let i = 1; i < lines.length; i++) {
+      const cols = this._splitCSVLine(lines[i], ',');
+
+      // Extract username/email
+      if (usernameIdx >= 0 && cols[usernameIdx]) {
+        const username = cols[usernameIdx].trim();
+        if (username && !seenEmails.has(username) && !seenUsernames.has(username)) {
+          if (username.includes('@')) {
+            seenEmails.add(username);
+            result.identity.emails.push({ real: username, substitute: '' });
+          } else if (username.length >= 3) {
+            seenUsernames.add(username);
+            result.identity.usernames.push({ real: username, substitute: '' });
+          }
+        }
+      }
+
+      // Extract domain from URL
+      if (urlIdx >= 0 && cols[urlIdx]) {
+        try {
+          const domain = new URL(cols[urlIdx].trim()).hostname;
+          if (domain && !seenDomains.has(domain) && !this._isCommonDomain(domain)) {
+            seenDomains.add(domain);
+            result.mappings.push({
+              real: domain,
+              substitute: '',
+              category: 'domain',
+              needsMapping: true,
+            });
+          }
+        } catch { /* invalid URL */ }
+      }
+    }
+
+    return result;
+  },
+
+  /**
+   * Parse Bitwarden CSV export.
+   */
+  parseBitwardenCSV(text) {
+    const result = this._empty();
+    const lines = text.trim().split('\n');
+    if (lines.length < 2) return result;
+
+    const headers = this._splitCSVLine(lines[0], ',').map(h => h.trim().toLowerCase());
+    const usernameIdx = headers.findIndex(h => h.includes('username'));
+    const uriIdx = headers.findIndex(h => h.includes('uri') || h.includes('url'));
+
+    const seen = new Set();
+
+    for (let i = 1; i < lines.length; i++) {
+      const cols = this._splitCSVLine(lines[i], ',');
+
+      if (usernameIdx >= 0 && cols[usernameIdx]) {
+        const val = cols[usernameIdx].trim();
+        if (val && !seen.has(val)) {
+          seen.add(val);
+          if (val.includes('@')) {
+            result.identity.emails.push({ real: val, substitute: '' });
+          } else if (val.length >= 3) {
+            result.identity.usernames.push({ real: val, substitute: '' });
+          }
+        }
+      }
+
+      if (uriIdx >= 0 && cols[uriIdx]) {
+        try {
+          const domain = new URL(cols[uriIdx].trim()).hostname;
+          if (domain && !seen.has(domain) && !this._isCommonDomain(domain)) {
+            seen.add(domain);
+            result.mappings.push({ real: domain, substitute: '', category: 'domain', needsMapping: true });
+          }
+        } catch { /* skip */ }
+      }
+    }
+
+    return result;
+  },
+
+  /**
+   * Parse 1Password CSV export.
+   */
+  parse1PasswordCSV(text) {
+    // 1Password CSV is similar enough to handle like password CSV
+    return this.parsePasswordCSV(text);
+  },
+
+  /**
+   * Parse browser autofill/address CSV.
+   * Extracts names, emails, phones, addresses.
+   */
+  parseAutofillCSV(text) {
+    const result = this._empty();
+    const lines = text.trim().split('\n');
+    if (lines.length < 2) return result;
+
+    const headers = this._splitCSVLine(lines[0], ',').map(h => h.trim().toLowerCase());
+
+    const nameFields = ['name', 'full name', 'first name', 'last name', 'given name', 'family name'];
+    const emailFields = ['email', 'e-mail', 'email address'];
+    const phoneFields = ['phone', 'phone number', 'tel', 'telephone'];
+    const addressFields = ['address', 'street', 'address line 1', 'street address'];
+
+    const findIdx = (targets) => headers.findIndex(h => targets.some(t => h.includes(t)));
+
+    const nameIdx = findIdx(nameFields);
+    const firstNameIdx = headers.findIndex(h => h === 'first name' || h === 'given name');
+    const lastNameIdx = headers.findIndex(h => h === 'last name' || h === 'family name');
+    const emailIdx = findIdx(emailFields);
+    const phoneIdx = findIdx(phoneFields);
+    const addressIdx = findIdx(addressFields);
+
+    const seen = new Set();
+
+    for (let i = 1; i < lines.length; i++) {
+      const cols = this._splitCSVLine(lines[i], ',');
+
+      // Names
+      if (firstNameIdx >= 0 && cols[firstNameIdx]) {
+        const val = cols[firstNameIdx].trim();
+        if (val && !seen.has('fn:' + val)) {
+          seen.add('fn:' + val);
+          result.identity.names.push({ real: val, substitute: '', type: 'first' });
+        }
+      }
+      if (lastNameIdx >= 0 && cols[lastNameIdx]) {
+        const val = cols[lastNameIdx].trim();
+        if (val && !seen.has('ln:' + val)) {
+          seen.add('ln:' + val);
+          result.identity.names.push({ real: val, substitute: '', type: 'last' });
+        }
+      }
+      if (nameIdx >= 0 && cols[nameIdx] && firstNameIdx < 0) {
+        const val = cols[nameIdx].trim();
+        if (val && !seen.has('n:' + val)) {
+          seen.add('n:' + val);
+          // Split "First Last" into two entries
+          const parts = val.split(/\s+/);
+          if (parts.length >= 2) {
+            result.identity.names.push({ real: parts[0], substitute: '', type: 'first' });
+            result.identity.names.push({ real: parts.slice(1).join(' '), substitute: '', type: 'last' });
+          } else {
+            result.identity.names.push({ real: val, substitute: '', type: 'first' });
+          }
+        }
+      }
+
+      // Emails
+      if (emailIdx >= 0 && cols[emailIdx]) {
+        const val = cols[emailIdx].trim();
+        if (val && !seen.has('e:' + val)) {
+          seen.add('e:' + val);
+          result.identity.emails.push({ real: val, substitute: '' });
+        }
+      }
+
+      // Phones
+      if (phoneIdx >= 0 && cols[phoneIdx]) {
+        const val = cols[phoneIdx].trim();
+        if (val && !seen.has('p:' + val)) {
+          seen.add('p:' + val);
+          result.identity.phones.push({ real: val, substitute: '' });
+        }
+      }
+
+      // Addresses
+      if (addressIdx >= 0 && cols[addressIdx]) {
+        const val = cols[addressIdx].trim();
+        if (val && !seen.has('a:' + val)) {
+          seen.add('a:' + val);
+          result.mappings.push({ real: val, substitute: '', category: 'address', needsMapping: true });
+        }
+      }
+    }
+
+    return result;
+  },
+
+  // ----------------------------------------------------------------
+  // Helpers
+  // ----------------------------------------------------------------
+
+  _empty() {
+    return {
+      mappings: [],
+      identity: {
+        names: [],
+        emails: [],
+        usernames: [],
+        hostnames: [],
+        phones: [],
+      },
+    };
+  },
+
+  _isHeader(a, b) {
+    const headers = ['real', 'substitute', 'fake', 'original', 'replacement', 'from', 'to', 'value', 'category', 'type'];
+    return headers.includes(a.toLowerCase()) || headers.includes(b.toLowerCase());
+  },
+
+  _guessCategory(value) {
+    if (/^[^@\s]+@[^@\s]+\.[^@\s]+$/.test(value)) return 'email';
+    if (/^[\d\s()+.-]{7,}$/.test(value)) return 'phone';
+    if (/^\d{3}-\d{2}-\d{4}$/.test(value)) return 'ssn';
+    if (/\d{1,5}\s+\w+\s+(st|street|ave|avenue|blvd|dr|drive|rd|road|ln|lane)/i.test(value)) return 'address';
+    if (/^[a-z][a-z0-9._-]*$/i.test(value) && value.length >= 3 && value.length <= 20) return 'general';
+    if (/^[A-Z][a-z]+(\s[A-Z][a-z]+)*$/.test(value)) return 'name';
+    return 'general';
+  },
+
+  /**
+   * Split a CSV line respecting quoted fields.
+   */
+  _splitCSVLine(line, sep = ',') {
+    const result = [];
+    let current = '';
+    let inQuotes = false;
+
+    for (let i = 0; i < line.length; i++) {
+      const ch = line[i];
+      if (ch === '"') {
+        if (inQuotes && line[i + 1] === '"') {
+          current += '"';
+          i++;
+        } else {
+          inQuotes = !inQuotes;
+        }
+      } else if (ch === sep && !inQuotes) {
+        result.push(current);
+        current = '';
+      } else {
+        current += ch;
+      }
+    }
+    result.push(current);
+
+    // Strip surrounding quotes
+    return result.map(s => s.replace(/^"|"$/g, ''));
+  },
+
+  _isCommonDomain(domain) {
+    const common = new Set([
+      'google.com', 'facebook.com', 'twitter.com', 'x.com', 'amazon.com',
+      'apple.com', 'microsoft.com', 'github.com', 'youtube.com', 'reddit.com',
+      'netflix.com', 'linkedin.com', 'instagram.com', 'wikipedia.org',
+      'stackoverflow.com', 'accounts.google.com', 'login.microsoftonline.com',
+    ]);
+    return common.has(domain);
+  },
+};
+
+export default ImportParser;
diff --git a/src/options/options.html b/src/options/options.html
index e0bb909..f71b13f 100644
--- a/src/options/options.html
+++ b/src/options/options.html
@@ -398,6 +398,32 @@
         <button class="btn" id="btnImportAll">Import from File</button>
         <input type="file" id="fileImportAll" accept=".json,.ssbackup" hidden>
       </div>
+
+      <div style="margin-top:20px;padding-top:16px;border-top:1px solid #e5e7eb">
+        <h3 style="font-size:13px;font-weight:600;margin:0 0 4px">Bulk Import — populate from existing data</h3>
+        <p class="section-desc" style="margin-bottom:8px">
+          Import real values from a CSV, password manager export, or browser autofill export.
+          Passwords are <strong>never</strong> imported — only usernames, emails, names, and domains.
+          Imported values appear with blank substitutes so you can fill in fakes.
+        </p>
+        <div style="display:flex;gap:8px;margin-bottom:6px;flex-wrap:wrap;align-items:center">
+          <button class="btn btn-primary" id="btnBulkImport">Import CSV / Password Export</button>
+          <input type="file" id="fileBulkImport" accept=".csv,.tsv,.txt" hidden>
+          <span style="font-size:11px;color:#6b7280">Chrome passwords, Firefox logins, Bitwarden, 1Password, autofill, or plain CSV</span>
+        </div>
+
+        <div id="bulkImportPreview" style="display:none;margin-top:10px;padding:10px;background:#f8fafc;border:1px solid #e2e8f0;border-radius:6px">
+          <h4 style="font-size:12px;font-weight:600;margin:0 0 8px">Import Preview</h4>
+          <div id="bulkImportSummary" style="font-size:12px;margin-bottom:8px"></div>
+          <div id="bulkImportItems" style="max-height:200px;overflow-y:auto;font-size:11px;margin-bottom:8px"></div>
+          <div style="display:flex;gap:8px">
+            <button class="btn btn-primary btn-sm" id="btnApplyBulkImport">Apply Import</button>
+            <button class="btn btn-sm" id="btnCancelBulkImport">Cancel</button>
+          </div>
+        </div>
+
+        <div id="bulkImportStatus" style="font-size:12px;margin-top:6px;min-height:16px"></div>
+      </div>
     </section>
 
     <section class="section">
diff --git a/src/options/options.js b/src/options/options.js
index 0453d6a..4c1d3a7 100644
--- a/src/options/options.js
+++ b/src/options/options.js
@@ -2,6 +2,7 @@ import Storage from '../lib/storage.js';
 import SilentSendCrypto from '../lib/crypto.js';
 import SilentSendSync from '../lib/sync.js';
 import VersionHistory from '../lib/version-history.js';
+import ImportParser from '../lib/import-parser.js';
 import SilentSendMerge from '../lib/merge.js';
 import OrgPolicy from '../lib/org-policy.js';
 import TamperGuard from '../lib/tamper-guard.js';
@@ -237,6 +238,14 @@ document.addEventListener('DOMContentLoaded', async () => {
   $('#btnImportAll').addEventListener('click', () => $('#fileImportAll').click());
   $('#fileImportAll').addEventListener('change', importAll);
 
+  // Bulk import
+  $('#btnBulkImport').addEventListener('click', () => $('#fileBulkImport').click());
+  $('#fileBulkImport').addEventListener('change', handleBulkImport);
+  $('#btnCancelBulkImport').addEventListener('click', () => {
+    $('#bulkImportPreview').style.display = 'none';
+    $('#fileBulkImport').value = '';
+  });
+
   // Custom domains
   $('#btnAddDomain').addEventListener('click', addDomain);
   $('#newDomain').addEventListener('keydown', (e) => {
@@ -1497,6 +1506,142 @@ function renderConflicts(conflicts) {
   });
 }
 
+// ----------------------------------------------------------------
+// Bulk Import
+// ----------------------------------------------------------------
+
+let pendingImport = null;
+
+async function handleBulkImport(e) {
+  const file = e.target.files[0];
+  if (!file) return;
+
+  try {
+    const text = await file.text();
+    const result = ImportParser.parse(text, file.name);
+    pendingImport = result;
+
+    // Build summary
+    const parts = [];
+    if (result.identity.names.length) parts.push(`${result.identity.names.length} name(s)`);
+    if (result.identity.emails.length) parts.push(`${result.identity.emails.length} email(s)`);
+    if (result.identity.usernames.length) parts.push(`${result.identity.usernames.length} username(s)`);
+    if (result.identity.phones.length) parts.push(`${result.identity.phones.length} phone(s)`);
+    if (result.mappings.length) parts.push(`${result.mappings.length} mapping(s)`);
+
+    const needsMapping = result.mappings.filter(m => m.needsMapping).length +
+      result.identity.names.filter(n => !n.substitute).length +
+      result.identity.emails.filter(e => !e.substitute).length +
+      result.identity.usernames.filter(u => !u.substitute).length +
+      result.identity.phones.filter(p => !p.substitute).length;
+
+    $('#bulkImportSummary').innerHTML = `
+      Found: ${parts.join(', ')}.
+      ${needsMapping > 0 ? `<span style="color:#b45309">${needsMapping} item(s) need substitutes — you can add them after import.</span>` : ''}
+    `;
+
+    // Build preview list
+    const items = [];
+    for (const n of result.identity.names) {
+      items.push(`<div><span style="color:#6b7280">name:</span> <strong>${escapeHtml(n.real)}</strong>${n.substitute ? ' → ' + escapeHtml(n.substitute) : ' <span style="color:#b45309">needs substitute</span>'}</div>`);
+    }
+    for (const e of result.identity.emails) {
+      items.push(`<div><span style="color:#6b7280">email:</span> <strong>${escapeHtml(e.real)}</strong>${e.substitute ? ' → ' + escapeHtml(e.substitute) : ' <span style="color:#b45309">needs substitute</span>'}</div>`);
+    }
+    for (const u of result.identity.usernames) {
+      items.push(`<div><span style="color:#6b7280">username:</span> <strong>${escapeHtml(u.real)}</strong>${u.substitute ? ' → ' + escapeHtml(u.substitute) : ' <span style="color:#b45309">needs substitute</span>'}</div>`);
+    }
+    for (const p of result.identity.phones) {
+      items.push(`<div><span style="color:#6b7280">phone:</span> <strong>${escapeHtml(p.real)}</strong>${p.substitute ? ' → ' + escapeHtml(p.substitute) : ' <span style="color:#b45309">needs substitute</span>'}</div>`);
+    }
+    for (const m of result.mappings) {
+      items.push(`<div><span style="color:#6b7280">${escapeHtml(m.category)}:</span> <strong>${escapeHtml(m.real)}</strong>${m.substitute ? ' → ' + escapeHtml(m.substitute) : ' <span style="color:#b45309">needs substitute</span>'}</div>`);
+    }
+
+    $('#bulkImportItems').innerHTML = items.slice(0, 50).join('') +
+      (items.length > 50 ? `<div style="color:#6b7280;margin-top:4px">+${items.length - 50} more...</div>` : '');
+
+    $('#bulkImportPreview').style.display = 'block';
+
+    // Wire up apply button
+    $('#btnApplyBulkImport').onclick = applyBulkImport;
+
+    setBulkImportStatus(`Parsed ${file.name} — review and click Apply.`, 'ok');
+  } catch (err) {
+    setBulkImportStatus('Failed to parse: ' + err.message, 'error');
+  }
+
+  e.target.value = '';
+}
+
+async function applyBulkImport() {
+  if (!pendingImport) return;
+
+  const result = pendingImport;
+  let addedCount = 0;
+
+  // Add to identity (first active profile)
+  const profiles = await Storage.getProfiles();
+  if (profiles.length > 0) {
+    const profile = profiles.find(p => p.active) || profiles[0];
+
+    if (result.identity.names.length) {
+      profile.names = [...(profile.names || []), ...result.identity.names];
+      addedCount += result.identity.names.length;
+    }
+    if (result.identity.emails.length) {
+      profile.emails = [...(profile.emails || []), ...result.identity.emails];
+      addedCount += result.identity.emails.length;
+    }
+    if (result.identity.usernames.length) {
+      profile.usernames = [...(profile.usernames || []), ...result.identity.usernames];
+      addedCount += result.identity.usernames.length;
+    }
+    if (result.identity.phones.length) {
+      profile.phones = [...(profile.phones || []), ...result.identity.phones];
+      addedCount += result.identity.phones.length;
+    }
+
+    await Storage.updateProfile(profile.id, profile);
+  }
+
+  // Add mappings
+  for (const m of result.mappings) {
+    await Storage.addMapping({
+      real: m.real,
+      substitute: m.substitute || '',
+      category: m.category || 'general',
+      caseSensitive: false,
+    });
+    addedCount++;
+  }
+
+  // Refresh UI
+  mappings = await Storage.getMappings();
+  renderMappings();
+
+  $('#bulkImportPreview').style.display = 'none';
+  pendingImport = null;
+
+  const needsSubs = result.mappings.filter(m => !m.substitute).length +
+    result.identity.names.filter(n => !n.substitute).length +
+    result.identity.emails.filter(e => !e.substitute).length +
+    result.identity.usernames.filter(u => !u.substitute).length +
+    result.identity.phones.filter(p => !p.substitute).length;
+
+  setBulkImportStatus(
+    `Imported ${addedCount} items.${needsSubs > 0 ? ` ${needsSubs} still need substitutes — check Identity tab and Mappings.` : ''}`,
+    'ok'
+  );
+}
+
+function setBulkImportStatus(msg, type) {
+  const el = $('#bulkImportStatus');
+  if (!el) return;
+  el.textContent = msg;
+  el.style.color = type === 'ok' ? '#10b981' : type === 'warn' ? '#f59e0b' : type === 'error' ? '#dc2626' : '#6b7280';
+}
+
 // ----------------------------------------------------------------
 // Utility
 // ----------------------------------------------------------------