About Audiobook Recorder

A free recorder for narrating audiobooks in the browser: record, cut stumbles with one key, and export chapters mastered to ACX's technical specs.

Privacy

• Your audio never leaves your computer. Recording, editing, mastering and MP3/WAV encoding all happen inside your browser. Nothing is uploaded to a server.
• Autosave stays local. While you record, the take is saved in your browser's own storage (IndexedDB) so it can be restored after a crash. It's removed when you start a new chapter or choose Discard. Clearing your browser's site data also removes it.
• No accounts, no cookies. The site counts visits with Cloudflare Web Analytics, which sets no cookies and doesn't track you across sites. It sees page views, not your recordings.

How the site is funded

The recorder is free. Product links in the equipment guide are affiliate links: buying through them may earn this site a commission at no extra cost to you. As an Amazon Associate, Audiobook Recorder earns from qualifying purchases. There may also be an optional tip link after a passing export. No brand pays to be recommended.

What it checks, and what it can't

Exports are measured against ACX's published technical requirements: RMS loudness, peak level, noise floor, and the MP3 format (192 kbps CBR, 44.1 kHz), with room tone at the start and end. ACX also reviews audiobooks by ear for consistency, mouth noise, background sounds and outtakes, which no tool can fully check, so passing these measurements doesn't guarantee approval. Listen to every chapter before you upload.

Audiobook Recorder is an independent tool. It is not affiliated with, endorsed by, or sponsored by ACX, Audible or Amazon. ACX and Audible are trademarks of Audible, Inc. or its affiliates.

Contact

Bug reports, questions and suggestions: support@audiobookrecorder.com. If something went wrong during a recording, say which browser and operating system you were using.

Open-source software

MP3 encoding uses lamejs, a JavaScript port of the LAME encoder, licensed under the LGPL-3.0. It is served unmodified from this site (lamejs-1.2.1.min.js, license note), or from cdnjs when the app is opened from a saved copy on disk.

Type is set in Jost, Nunito Sans and Space Mono, served from this site under the SIL Open Font License (Jost, Nunito Sans, Space Mono).