Pilot it+79 this week6,783 · 1,280 forks

Open-source speech synthesizer

Worth a timeboxed spike before you bet on it.

Who it's for

Small teams needing text-to-speech

What it replaces

Paid text-to-speech services

The catch

GPL-3.0 license may restrict commercial use

Your first hour

Download and test eSpeak NG with sample audio files

Licence check

GPL-3.0. This is a copyleft or source-available licence with obligations attached. Read the LICENSE file before shipping it inside a commercial product.

This is a reading of the licence label, not legal advice.

The numbers

Stars6,783
Forks1,280
Stars added (7d)+79
Open issues599
LanguageC
LicenceGPL-3.0
Last pushLast push 10 days ago
Project age11 years old

Maintainers describe it as: eSpeak NG is an open source speech synthesizer that supports more than hundred languages and accents.

androidespeakespeak-ngspeech-synthesistext-to-speech

espeak-ng, in short

Should a small team use espeak-ng?
Pilot it. Worth a timeboxed spike before you bet on it. Small teams needing text-to-speech
What does espeak-ng actually do?
Open-source speech synthesizer
What does espeak-ng replace?
Paid text-to-speech services
What is the downside of espeak-ng?
GPL-3.0 license may restrict commercial use
Can espeak-ng be used in a commercial product?
Its licence is GPL-3.0, which carries obligations or restrictions for commercial use. Read the LICENSE file, and get a lawyer's read before you ship it inside a product you sell.

Weighed against

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Stars, forks, licence and last-push data from the public GitHub API, refreshed August 29, 2026. The verdict is NoizeOff's editorial opinion for a team of 2–20, not advice from the project's maintainers, and not legal advice on licensing. We are not affiliated with espeak-ng.

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