DocstoAudio

DocstoAudio is an online document-to-audiobook converter that transforms your EPUB, PDF, DOCX, and TXT files into downloadable MP3 or M4B audiobooks, so you can turn reading time into listening time.

The Standard tier is completely free, requires no account, and imposes no file size limits. It offers 300+ voices across 30+ languages, which means you can listen to any document in your preferred language and voice without signing up or paying a cent.

The Premium tier unlocks 800+ ElevenLabs AI voices across 50+ languages for more expressive, human-like narration that is far easier on the ears during long listening sessions. Premium uses a pay-as-you-go credit system — no subscription and no recurring fees. You can also preview any voice before committing to a conversion, so you always know exactly what you are getting.