MaryTTS
Don’t want to install MaryTTS? Drop the file here.
The first 20 minutes of any recording are transcribed free: a recording up to 20 minutes transcribes in full, a longer one is previewed, and a pack from $6 (500 minutes) transcribes the rest and opens every export, and credits never expire.
Java-based open-source TTS platform — research and academic deployments.
Best for java/JVM applications and academic research needing a multilingual TTS server. Pricing: free (LGPL).
What it is
MaryTTS is an open-source multilingual TTS platform from DFKI Saarbrücken. JVM-based, with HMM and unit-selection voices in 11 languages. LGPL. Best fit: research and JVM apps where neural TTS is overkill. Consent posture: synthetic-only.
Watch out for: Concatenative / HMM voices — predates the neural-TTS era.
Install / use
Download from github.com/marytts/marytts/releases
What people actually do with MaryTTS-style transcription
The tool is the means. These are the jobs — each one priced at published rates, each one wired up on its own page.
Features
| Speaker diarization | No |
| Word-level timestamps | No |
| Streaming / real-time | No |
| Languages supported | 11 |
| HIPAA eligible | No |
Links
MaryTTS vs Whipscribe
| Feature | MaryTTS | Whipscribe |
|---|---|---|
| Category | Open source | Transcription APIs |
| Pricing | free (LGPL) | $6–$24 one-time packs (credits never expire) · first 20 minutes free |
| Speaker identification | — | Named in the summary, key quotes and chapters |
| Word timestamps | — | Yes |
| Streaming | — | No |
| Languages | 11 | 99 |
| Platforms | Linux, macOS, Windows | Web, API, MCP |
Alternatives to MaryTTS
Frequently asked about MaryTTS
Is MaryTTS free?
Yes. MaryTTS is free and open source (free (LGPL)).
Does MaryTTS work on Mac, Windows and Linux?
MaryTTS runs on Linux, macOS and Windows.
How many languages does MaryTTS support?
MaryTTS lists 11 languages.
Does MaryTTS identify different speakers?
No. MaryTTS does not label speakers; a conversation comes back as one continuous text. If you need speaker labels, that is a separate tool or a different service.
Does MaryTTS give word-level timestamps?
No — MaryTTS produces segment or sentence timing only, so subtitle cues can land mid-word.
Can MaryTTS transcribe live audio?
No — MaryTTS works on finished files, not a live stream.
Is MaryTTS HIPAA compliant?
MaryTTS does not claim HIPAA compliance. For PHI, run it on infrastructure you control or choose a service that will sign a BAA.
What are the limitations of MaryTTS?
Concatenative / HMM voices — predates the neural-TTS era.
Who is MaryTTS best for?
Java/JVM applications and academic research needing a multilingual TTS server.
Does MaryTTS run offline?
MaryTTS runs on your own machine — it is open source, so nothing leaves the computer unless you configure it to.
Can I use MaryTTS in the browser?
No — MaryTTS is a Linux, macOS and Windows application, not a web app. You install it rather than sign in to it.
Where is the MaryTTS source code?
On GitHub at github.com/marytts/marytts. It is maintained by DFKI.
What kind of tool is MaryTTS?
In this directory MaryTTS is filed under tts as a open-source tool.
What are the alternatives to MaryTTS?
There is a side-by-side page at /tools/marytts-alternatives comparing MaryTTS with the closest tools in the same category on price, platform and features.
Can I automate MaryTTS-style transcription without running it myself?
Yes. If what you want is transcripts rather than the tool itself, Whipscribe does the same job as a hosted API: submit a file or URL, poll a job id, pull the result as txt, json, srt, vtt or docx. $0.012 a minute — about $0.72 an audio hour — bought as credits that never expire. The automation recipes on this site show it wired to Drive folders, Zoom recordings, S3 buckets and no-code platforms.
Whipscribe is a hosted transcription service. If you want transcripts without running infrastructure, paste a URL or drop a file in the form below — you'll have a transcript in seconds.
Transcribe your recordings
Running MaryTTS yourself? Send the same file here and compare the transcript. Transcribe any language, any recording · Transcription services from $0.29 an hour · Transcribe from any meeting or recording platform · How to transcribe, step by step
Explore
All transcription tools · By language · By platform · By file format · How-to guides · Transcription services · Transcription API · Pricing
Have the recording already?
Skip the setup and send the file or the link: see how to transcribe an MP3 of any length, transcribing a podcast episode and the SRT file generator.
Comparing tools before you pay?
If you would rather pay a service than run software yourself: see the best transcription services side by side, affordable transcription priced per hour and transcription services from $6.