Comparison
IMS-Toucan vs espeak-ng
Verdict
Pick IMS-Toucan if iMS-Toucan is a text-to-speech toolkit with robust support for over 7000 languages using deep learning techniques; pick espeak-ng if eSpeak NG: Free text-to-speech engine with over a hundred languages and accents in C under GPL-3.0.
Markdown twin · IMS-Toucan alternatives · espeak-ng alternatives
GraphCanon updated 3w
vs
Trust & integrity
| Signal | IMS-Toucan | espeak-ng |
|---|---|---|
| Maintenance | Slowing (185d since push) As of 3w · github_public_v1 | Very active (1d since push) As of 4w · github_public_v1 |
| Provenance | Not a fork · Organization account As of 3w · github_public_v1 | Not a fork · Organization account As of 4w · github_public_v1 |
| OSV dependency advisories | No published findings from this source as of 2026-07-11 As of 1mo · osv@v1 | No lockfile (source not queried) As of 1mo · osv@v1 |
| deps.dev advisories | Not queried deps.dev@v1 | Not queried deps.dev@v1 |
| OpenSSF Scorecard | Not queried openssf-scorecard@v1 | Not queried openssf-scorecard@v1 |
Tagline
- IMS-Toucan
- Controllable and fast Text-to-Speech for over 7000 languages
- espeak-ng
- Open source speech synthesizer supporting more than hundred languages and accents
Stars
- IMS-Toucan
- 2.2k
- espeak-ng
- 6.7k
Forks
- IMS-Toucan
- 317
- espeak-ng
- 1.3k
Open issues
- IMS-Toucan
- 3
- espeak-ng
- 594
Language
- IMS-Toucan
- Python
- espeak-ng
- C
Adopt for
- IMS-Toucan
- IMS-Toucan is a text-to-speech toolkit with robust support for over 7000 languages using deep learning techniques.
- espeak-ng
- eSpeak NG: Free text-to-speech engine with over a hundred languages and accents in C under GPL-3.0
Persona
- IMS-Toucan
- -
- espeak-ng
- -
Runtime
- IMS-Toucan
- -
- espeak-ng
- -
License
- IMS-Toucan
- Apache-2.0
- espeak-ng
- GPL-3.0
Last pushed
- IMS-Toucan
- Jan 25, 2026
- espeak-ng
- Jul 27, 2026
Categories
- IMS-Toucan
- Speech & Audio
- espeak-ng
- Speech & Audio
Trust and health
Maintenance
- IMS-Toucan
- Slowing (36%)
- espeak-ng
- Very active (96%)
Days since push
- IMS-Toucan
- 185d
- espeak-ng
- 1d
Open issues (now)
- IMS-Toucan
- 3
- espeak-ng
- 594
OSV dependency advisories
- IMS-Toucan
- No published findings from this source as of 2026-07-11
- espeak-ng
- No lockfile (source not queried)
Full report
- IMS-Toucan
- Trust report
- espeak-ng
- Trust report
Choose IMS-Toucan if…
- IMS-Toucan is primarily Python; espeak-ng is C.
- License: IMS-Toucan is Apache-2.0, espeak-ng is GPL-3.0.
- Requirements: Python version 3.10 is recommended..
- Tags unique to IMS-Toucan: deep-learning, pytorch, speech-processing.
- Use IMS-Toucan if your project requires high language coverage, especially in lesser-known or endangered languages.
When NOT to use IMS-Toucan
- Avoid IMS-Toucan if your project only requires support for a few major languages since it may introduce unnecessary complexity.
- Do not use IMS-Toucan if you cannot meet the setup requirements, including specific Python and library versions as well as potential difficulties in setting up on MACs.
Choose espeak-ng if…
- espeak-ng is primarily C; IMS-Toucan is Python.
- License: espeak-ng is GPL-3.0, IMS-Toucan is Apache-2.0.
- Tags unique to espeak-ng: android, espeak, espeak-ng, speech-synthesis.
- When multilingual support across over a hundred languages is required.
When NOT to use espeak-ng
- Avoid if proprietary software development prohibits use of GPL-3.0 licensed tools.
- Not ideal if fine-grain control and quality over diverse accents are more important than extensive language coverage.
Explore
Sources
Every stat on this page traces to a dated GitHub sync, license file, enrichment field, or trust scan.
- GitHub stars (DigitalPhonetics/IMS-Toucan) · observed Jul 29, 2026
- GitHub forks (DigitalPhonetics/IMS-Toucan) · observed Jul 29, 2026
- Last push (DigitalPhonetics/IMS-Toucan) · observed Jan 25, 2026
- License file (Apache-2.0) · observed Jul 29, 2026
- Decision facts (enrichment) · observed Jul 17, 2026
- Trust scan (lockfile / OSV) · observed Jul 11, 2026
- GitHub stars (espeak-ng/espeak-ng) · observed Jul 29, 2026
- GitHub forks (espeak-ng/espeak-ng) · observed Jul 29, 2026
- Last push (espeak-ng/espeak-ng) · observed Jul 27, 2026
- License file (GPL-3.0) · observed Jul 29, 2026
- Decision facts (enrichment) · observed Jul 17, 2026
- Trust scan (lockfile / OSV) · observed Jul 11, 2026
GitHub stars on cards: IMS-Toucan 2.2k · espeak-ng 6.7k (synced Jul 29, 2026).
Common questions
- What is the difference between IMS-Toucan and espeak-ng?
- IMS-Toucan: Controllable and fast Text-to-Speech for over 7000 languages. espeak-ng: Open source speech synthesizer supporting more than hundred languages and accents. See the comparison table for live GitHub stats and shared categories.
- When should I choose IMS-Toucan over espeak-ng?
- Choose IMS-Toucan over espeak-ng when IMS-Toucan is primarily Python; espeak-ng is C; License: IMS-Toucan is Apache-2.0, espeak-ng is GPL-3.0; Requirements: Python version 3.10 is recommended.; Tags unique to IMS-Toucan: deep-learning, pytorch, speech-processing; Use IMS-Toucan if your project requires high language coverage, especially in lesser-known or endangered languages.
- When should I choose espeak-ng over IMS-Toucan?
- Choose espeak-ng over IMS-Toucan when espeak-ng is primarily C; IMS-Toucan is Python; License: espeak-ng is GPL-3.0, IMS-Toucan is Apache-2.0; Tags unique to espeak-ng: android, espeak, espeak-ng, speech-synthesis; When multilingual support across over a hundred languages is required.
- When should I avoid IMS-Toucan?
- Avoid IMS-Toucan if your project only requires support for a few major languages since it may introduce unnecessary complexity. Do not use IMS-Toucan if you cannot meet the setup requirements, including specific Python and library versions as well as potential difficulties in setting up on MACs.
- When should I avoid espeak-ng?
- Avoid if proprietary software development prohibits use of GPL-3.0 licensed tools. Not ideal if fine-grain control and quality over diverse accents are more important than extensive language coverage.
- Is IMS-Toucan or espeak-ng more popular on GitHub?
- espeak-ng has more GitHub stars (6,688 vs 2,209). Stars measure visibility, not whether either tool fits your constraints.
- Are IMS-Toucan and espeak-ng open source?
- Yes - both are open-source projects on GitHub (IMS-Toucan: Apache-2.0, espeak-ng: GPL-3.0).
- Where can I find alternatives to IMS-Toucan or espeak-ng?
- GraphCanon lists graph-backed alternatives at IMS-Toucan alternatives and espeak-ng alternatives (IMS-Toucan markdown twin, espeak-ng markdown twin), ranked by typed relationship edges rather than popularity votes.
- Is there a machine-readable version of this comparison?
- Yes. The markdown twin at this comparison mirrors this page for agents and LLM crawlers, with the same stats table and FAQ answers.
- Which is better maintained, IMS-Toucan or espeak-ng?
- IMS-Toucan: Slowing. espeak-ng: Very active. Compare maintenance labels, days since push, and release cadence in the trust section below - stars alone do not measure maintenance.
- Where are the full trust reports for IMS-Toucan and espeak-ng?
- GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: IMS-Toucan trust report; espeak-ng trust report.