diff --git a/bin/cli.js b/bin/cli.js
index 1b3caaf..3608e09 100755
--- a/bin/cli.js
+++ b/bin/cli.js
@@ -61,6 +61,9 @@ program.command('create')
     'If not provided, js-wacz will reindex from WARCS. Must be used in combination ' +
     'with --pages, since using this option will skip the step required to generate a ' +
     'pages.jsonl file.')
+  .option(
+    '-l --log-directory <string>',
+    'Path to a directory of log files to copy into WACZ.')
   .action(async (name, options, command) => {
     /** @type {Object} */
     const values = options._optionValues
@@ -111,8 +114,9 @@ program.command('create')
         description: values?.desc,
         signingUrl: values?.signingUrl,
         signingToken: values?.signingToken,
-        pages: values?.pages,
-        cdxj: values?.cdxj,
+        pagesDir: values?.pages,
+        cdxjDir: values?.cdxj,
+        logDir: values?.logDirectory,
         log
       })
     } catch (err) {
diff --git a/constants.js b/constants.js
index ddd4fff..fb58e82 100644
--- a/constants.js
+++ b/constants.js
@@ -40,6 +40,18 @@ export const EXTRA_PAGES_FIXTURE_PATH = `${PAGES_DIR_FIXTURES_PATH}extraPages.js
  */
 export const CDXJ_DIR_FIXTURES_PATH = `${FIXTURES_PATH}cdxj${sep}`
 
+/**
+ * Path to the fixtures folder log directory sub-directory.
+ * @constant
+ */
+export const LOG_DIR_FIXTURES_PATH = `${FIXTURES_PATH}logs${sep}`
+
+/**
+ * Path to the log.txt fixture
+ * @constant
+ */
+export const LOG_FILE_FIXTURE_PATH = `${LOG_DIR_FIXTURES_PATH}sample.log`
+
 /**
  * Colors scheme for log level.
  * @constant
diff --git a/fixtures/logs/invalid.md b/fixtures/logs/invalid.md
new file mode 100644
index 0000000..83d666d
--- /dev/null
+++ b/fixtures/logs/invalid.md
@@ -0,0 +1,3 @@
+# Markdown file
+
+This shouldn't be copied into the WACZ due to file extension.
diff --git a/fixtures/logs/sample.log b/fixtures/logs/sample.log
new file mode 100644
index 0000000..2717cc6
--- /dev/null
+++ b/fixtures/logs/sample.log
@@ -0,0 +1,20 @@
+{"timestamp":"2024-08-13T19:53:20.782Z","logLevel":"info","context":"general","message":"Browsertrix-Crawler 1.2.6 (with warcio.js 2.2.1)","details":{}}
+{"timestamp":"2024-08-13T19:53:20.784Z","logLevel":"info","context":"general","message":"Seeds","details":[{"url":"https://webrecorder.net/","scopeType":"prefix","include":["/^https?:\\/\\/webrecorder\\.net\\//"],"exclude":[],"allowHash":false,"depth":-1,"sitemap":null,"auth":null,"_authEncoded":null,"maxExtraHops":0,"maxDepth":1000000}]}
+{"timestamp":"2024-08-13T19:53:20.785Z","logLevel":"info","context":"general","message":"Behavior Options","details":{"message":"{\"autoplay\":true,\"autofetch\":true,\"autoscroll\":true,\"siteSpecific\":true,\"log\":\"__bx_log\",\"startEarly\":true}"}}
+{"timestamp":"2024-08-13T19:53:22.417Z","logLevel":"info","context":"worker","message":"Creating 1 workers","details":{}}
+{"timestamp":"2024-08-13T19:53:22.419Z","logLevel":"info","context":"worker","message":"Worker starting","details":{"workerid":0}}
+{"timestamp":"2024-08-13T19:53:22.654Z","logLevel":"info","context":"worker","message":"Starting page","details":{"workerid":0,"page":"https://webrecorder.net/"}}
+{"timestamp":"2024-08-13T19:53:22.655Z","logLevel":"info","context":"crawlStatus","message":"Crawl statistics","details":{"crawled":0,"total":1,"pending":1,"failed":0,"limit":{"max":1,"hit":false},"pendingPages":["{\"seedId\":0,\"started\":\"2024-08-13T19:53:22.423Z\",\"extraHops\":0,\"url\":\"https:\\/\\/webrecorder.net\\/\",\"added\":\"2024-08-13T19:53:21.426Z\",\"depth\":0}"]}}
+{"timestamp":"2024-08-13T19:53:22.928Z","logLevel":"info","context":"general","message":"Awaiting page load","details":{"page":"https://webrecorder.net/","workerid":0}}
+{"timestamp":"2024-08-13T19:53:25.176Z","logLevel":"warn","context":"general","message":"Invalid Page - URL must start with http:// or https://","details":{"url":"mailto:info@webrecorder.net","page":"https://webrecorder.net/","workerid":0}}
+{"timestamp":"2024-08-13T19:53:25.190Z","logLevel":"info","context":"behavior","message":"Running behaviors","details":{"frames":1,"frameUrls":["https://webrecorder.net/"],"page":"https://webrecorder.net/","workerid":0}}
+{"timestamp":"2024-08-13T19:53:25.191Z","logLevel":"info","context":"behavior","message":"Run Script Started","details":{"frameUrl":"https://webrecorder.net/","page":"https://webrecorder.net/","workerid":0}}
+{"timestamp":"2024-08-13T19:53:25.200Z","logLevel":"info","context":"behaviorScript","message":"Behavior log","details":{"state":{"segments":1},"msg":"Skipping autoscroll, page seems to not be responsive to scrolling events","page":"https://webrecorder.net/","workerid":0}}
+{"timestamp":"2024-08-13T19:53:25.200Z","logLevel":"info","context":"behaviorScript","message":"Behavior log","details":{"state":{"segments":1},"msg":"done!","page":"https://webrecorder.net/","workerid":0}}
+{"timestamp":"2024-08-13T19:53:25.702Z","logLevel":"info","context":"behavior","message":"Run Script Finished","details":{"frameUrl":"https://webrecorder.net/","page":"https://webrecorder.net/","workerid":0}}
+{"timestamp":"2024-08-13T19:53:25.703Z","logLevel":"info","context":"behavior","message":"Behaviors finished","details":{"finished":1,"page":"https://webrecorder.net/","workerid":0}}
+{"timestamp":"2024-08-13T19:53:26.716Z","logLevel":"info","context":"pageStatus","message":"Page Finished","details":{"loadState":4,"page":"https://webrecorder.net/","workerid":0}}
+{"timestamp":"2024-08-13T19:53:26.734Z","logLevel":"info","context":"worker","message":"Worker done, all tasks complete","details":{"workerid":0}}
+{"timestamp":"2024-08-13T19:53:26.829Z","logLevel":"info","context":"crawlStatus","message":"Crawl statistics","details":{"crawled":1,"total":1,"pending":0,"failed":0,"limit":{"max":1,"hit":true},"pendingPages":[]}}
+{"timestamp":"2024-08-13T19:53:26.830Z","logLevel":"info","context":"general","message":"Crawling done","details":{}}
+{"timestamp":"2024-08-13T19:53:26.831Z","logLevel":"info","context":"general","message":"Exiting, Crawl status: done","details":{}}
diff --git a/index.js b/index.js
index fbf80fe..b78ab4a 100644
--- a/index.js
+++ b/index.js
@@ -191,6 +191,12 @@ export class WACZ {
    */
   cdxjDir = null
 
+  /**
+   * Path to directory of log files to copy into WACZ.
+   * @type {?string}
+   */
+  logDir = null
+
   /**
    * @param {WACZOptions} options - See {@link WACZOptions} for details.
    */
@@ -294,15 +300,15 @@ export class WACZ {
       this.indexFromWARCs = false
     }
 
-    if (options?.pages) {
+    if (options?.pagesDir) {
       this.detectPages = false
-      this.pagesDir = String(options?.pages).trim()
+      this.pagesDir = String(options?.pagesDir).trim()
     }
 
-    if (options?.cdxj) {
+    if (options?.cdxjDir) {
       this.detectPages = false
       this.indexFromWARCs = false // Added here for clarity, but implied by calls to `this.addCDXJ()`
-      this.cdxjDir = String(options?.cdxj).trim()
+      this.cdxjDir = String(options?.cdxjDir).trim()
     }
 
     if (options?.url) {
@@ -340,6 +346,10 @@ export class WACZ {
       }
     }
 
+    if (options?.logDir) {
+      this.logDir = String(options?.logDir).trim()
+    }
+
     if (options?.signingToken && this.signingUrl) {
       this.signingToken = String(options.signingToken)
     }
@@ -398,6 +408,11 @@ export class WACZ {
     info('Writing WARCs to WACZ')
     await this.writeWARCsToZip()
 
+    if (this.logDir) {
+      info('Writing logs to WACZ')
+      await this.writeLogsToZip()
+    }
+
     info('Writing datapackage.json to WACZ')
     await this.writeDatapackageToZip()
 
@@ -727,6 +742,37 @@ export class WACZ {
     }
   }
 
+  /**
+   * Streams all the files listed in `this.logDir` to the output ZIP.
+   * @returns {Promise<void>}
+   */
+  writeLogsToZip = async () => {
+    this.stateCheck()
+
+    const { logDir, addFileToZip, log } = this
+
+    const allowedExts = ['log', 'txt']
+
+    const logFiles = await fs.readdir(logDir)
+
+    for (const logFile of logFiles) {
+      const logFilepath = resolve(this.logDir, logFile)
+
+      const ext = logFilepath.toLowerCase().split('.').pop()
+      if (!allowedExts.includes(ext)) {
+        log.warn(`Skipping log file ${logFile}, not in allowed extensions (txt, log).`)
+        continue
+      }
+
+      try {
+        await addFileToZip(logFilepath, `logs/${logFile}`)
+      } catch (err) {
+        log.trace(err)
+        throw new Error(`An error occurred while writing "${logFile}" to ZIP.`)
+      }
+    }
+  }
+
   /**
    * Creates `datapackage.json` out of `this.resources` and writes it to ZIP.
    * @returns {Promise<void>}
diff --git a/index.test.js b/index.test.js
index 42a5bc3..b15fab5 100644
--- a/index.test.js
+++ b/index.test.js
@@ -11,7 +11,7 @@ import StreamZip from 'node-stream-zip'
 import * as dotenv from 'dotenv'
 
 import { WACZ } from './index.js'
-import { FIXTURES_PATH, PAGES_DIR_FIXTURES_PATH, PAGES_FIXTURE_PATH, EXTRA_PAGES_FIXTURE_PATH, CDXJ_DIR_FIXTURES_PATH } from './constants.js'
+import { FIXTURES_PATH, PAGES_DIR_FIXTURES_PATH, PAGES_FIXTURE_PATH, EXTRA_PAGES_FIXTURE_PATH, LOG_DIR_FIXTURES_PATH, LOG_FILE_FIXTURE_PATH, CDXJ_DIR_FIXTURES_PATH } from './constants.js'
 import { assertSHA256WithPrefix, assertValidWACZSignatureFormat } from './utils/assertions.js' // see https://github.com/motdotla/dotenv#how-do-i-use-dotenv-with-import
 
 // Loads env vars from .env if provided
@@ -74,8 +74,8 @@ test('WACZ constructor accounts for options.detectPages if valid.', async (_t) =
   assert.equal(archive.detectPages, false)
 })
 
-test('WACZ constructor accounts for options.pages if provided.', async (_t) => {
-  const archive = new WACZ({ input: FIXTURE_INPUT, pages: PAGES_DIR_FIXTURES_PATH })
+test('WACZ constructor accounts for options.pagesDir if provided.', async (_t) => {
+  const archive = new WACZ({ input: FIXTURE_INPUT, pagesDir: PAGES_DIR_FIXTURES_PATH })
   assert.equal(archive.detectPages, false)
   assert.equal(archive.pagesDir, PAGES_DIR_FIXTURES_PATH)
 })
@@ -187,6 +187,11 @@ test('WACZ constructor accounts for options.datapackageExtras if provided.', asy
   assert.equal(archive.datapackageExtras, datapackageExtras)
 })
 
+test('WACZ constructor accounts for options.logDir if valid.', async (_t) => {
+  const archive = new WACZ({ input: FIXTURE_INPUT, logDir: LOG_DIR_FIXTURES_PATH })
+  assert.equal(archive.logDir, LOG_DIR_FIXTURES_PATH)
+})
+
 test('addPage adds entry to pagesTree and turns detectPages off.', async (_t) => {
   const archive = new WACZ({ input: FIXTURE_INPUT })
   assert.equal(archive.detectPages, true)
@@ -347,7 +352,8 @@ test('WACZ.process with pagesDir option creates valid WACZ with provided pages f
     url: 'https://lil.law.harvard.edu',
     title: 'WACZ Title',
     description: 'WACZ Description',
-    pages: PAGES_DIR_FIXTURES_PATH
+    pagesDir: PAGES_DIR_FIXTURES_PATH,
+    logDir: LOG_DIR_FIXTURES_PATH
   }
 
   const archive = new WACZ(options)
@@ -356,10 +362,11 @@ test('WACZ.process with pagesDir option creates valid WACZ with provided pages f
 
   const zip = new StreamZip.async({ file: options.output }) // eslint-disable-line
 
-  // File in pages fixture directory that are invalid JSONL or have wrong extension
+  // Files in fixtures directories that are invalid JSONL or have wrong extensions
   // should not be copied into the WACZ.
   assert.rejects(async () => await zip.entryData('pages/invalid.jsonl'))
   assert.rejects(async () => await zip.entryData('pages/invalid.txt'))
+  assert.rejects(async () => await zip.entryData('logs/invalid.md'))
 
   // pages/pages.jsonl and pages/extraPages.jsonl should have same hash as fixtures
   // they were copied from.
@@ -373,6 +380,11 @@ test('WACZ.process with pagesDir option creates valid WACZ with provided pages f
   const extraPagesFixtureHash = await archive.sha256(EXTRA_PAGES_FIXTURE_PATH)
   assert.equal(datapackageExtraPages.hash, extraPagesFixtureHash)
 
+  // log file provided in logDir option should have same hash as fixture
+  const datapackageLogFile = datapackage.resources.filter(entry => entry.path === 'logs/sample.log')[0]
+  const logFileFixtureHash = await archive.sha256(LOG_FILE_FIXTURE_PATH)
+  assert.equal(datapackageLogFile.hash, logFileFixtureHash)
+
   // Delete temp file
   await fs.unlink(options.output)
 })
@@ -384,8 +396,8 @@ test('WACZ.process with cdxj option creates valid WACZ with index from provided
     url: 'https://lil.law.harvard.edu',
     title: 'WACZ Title',
     description: 'WACZ Description',
-    pages: PAGES_DIR_FIXTURES_PATH,
-    cdxj: CDXJ_DIR_FIXTURES_PATH
+    pagesDir: PAGES_DIR_FIXTURES_PATH,
+    cdxjDir: CDXJ_DIR_FIXTURES_PATH
   }
 
   const archive = new WACZ(options)
diff --git a/types.js b/types.js
index 7c025ec..94e7491 100644
--- a/types.js
+++ b/types.js
@@ -12,8 +12,9 @@
  * @property {?string} signingUrl - If set, will be used to try and sign the resulting archive.
  * @property {?string} signingToken - Access token to be used in combination with `signingUrl`.
  * @property {?Object} datapackageExtras - If set, will be appended to datapackage.json under `extras`.
- * @property {?string} cdxj - If set, skips indexing and allows for passing CDXJ files "as is". Path to a folder containing CDXJ files.
- * @property {?string} pages - If set, allows for passing pre-set pages.jsonl file(s). Path to a folder containing pages files (pages.jsonl, extraPages.jsonl ...). Must be used in combination with `pages`, since using this option will skip the step required to generate a pages.jsonl file.
+ * @property {?string} cdxjDir - If set, skips indexing and allows for passing CDXJ files "as is". Path to a folder containing CDXJ files.
+ * @property {?string} pagesDir - If set, allows for passing pre-set pages.jsonl file(s). Path to a folder containing pages files (pages.jsonl, extraPages.jsonl ...). Must be used in combination with `pages`, since using this option will skip the step required to generate a pages.jsonl file.
+ * @property {?string} logDir - If set, allows for passing existing crawler log files into the WACZ. Path to a folder containing log files. Only files with log or txt extensions in that folder will be copied.
  * @property {?any} log - Will be used instead of the Console API for logging, if compatible (i.e: loglevel). Defaults to globalThis.console.
  */