Comparison
jiwer vs mastra
Verdict
Pick jiwer when jiwer is primarily Python; mastra is TypeScript; pick mastra when mastra is primarily TypeScript; jiwer is Python.
Markdown twin · jiwer alternatives · mastra alternatives
GraphCanon updated today
Trust & integrity
| Signal | jiwer | mastra |
|---|---|---|
| Maintenance | Steady (85d since push) As of today · github_public_v1 | Very active (0d since push) As of today · github_public_v1 |
| Provenance | Not a fork · Organization account As of today · github_public_v1 | Not a fork · Organization account As of today · github_public_v1 |
| Security (OSV) | No lockfile As of today · none | No MCP manifest As of today · mcp_manifest |
Tagline
- jiwer
- Evaluate your speech-to-text system with similarity measures such as word error rate (WER)
- mastra
- Modern TypeScript framework for AI-powered applications and agents
Stars
- jiwer
- 910
- mastra
- 26k
Forks
- jiwer
- 107
- mastra
- 2.4k
Open issues
- jiwer
- 19
- mastra
- 436
Language
- jiwer
- Python
- mastra
- TypeScript
Adopt for
- jiwer
- -
- mastra
- Mastra is a modern TypeScript framework tailored specifically for building AI-powered applications and agents, supporting technologies like chatbots, language models, and TTS.
Persona
- jiwer
- -
- mastra
- -
Runtime
- jiwer
- -
- mastra
- -
License
- jiwer
- Apache-2.0
- mastra
- Mastra operates under a dual-license model with its core components licensed under Apache-2.0 and enterprise-exclusive features under the proprietary Mastra Enterprise License.
Last pushed
- jiwer
- Apr 16, 2026
- mastra
- Jul 11, 2026
Categories
- jiwer
- Speech & Audio, Evaluation & Observability
- mastra
- AI Agents, LLM Frameworks, Speech & Audio, Evaluation & Observability
Trust and health
Maintenance
- jiwer
- Steady (60%)
- mastra
- Very active (96%)
Days since push
- jiwer
- 85d
- mastra
- 0d
Open issues (now)
- jiwer
- 19
- mastra
- 436
Security scan
- jiwer
- No lockfile
- mastra
- No MCP manifest
Full report
- jiwer
- Trust report
- mastra
- Trust report
Choose jiwer if…
- jiwer is primarily Python; mastra is TypeScript.
- License: jiwer is Apache-2.0, mastra is Other.
- Tags unique to jiwer: automatic-speech-recognition, word-error-rate, python3, speech-to-text.
When NOT to use jiwer
- Evaluation & Observability: Defer heavyweight eval infra only until you have real traffic - never skip it once users depend on answers.
Choose mastra if…
- mastra is primarily TypeScript; jiwer is Python.
- License: mastra is Other, jiwer is Apache-2.0.
- Pricing: Free for open-source Apache-licensed portions; Mastra Enterprise License subscription required for full feature access..
- Requirements: Project must be developed in TypeScript.; JavaScript and TypeScript ecosystems (Node.js, NextJS) are prerequisites for leveraging Mastra's integrations fully..
- Tags unique to mastra: nodejs, agents, llm, ai.
- Also covers AI Agents, LLM Frameworks.
- You should use Mastra when you are developing AI-driven applications or bots that require integration with technologies such as text-to-speech (TTS) or complex chatbot functionalities.
When NOT to use mastra
- Mastra may not be suitable if your application does not require TypeScript and prefers simpler setup or non-TypeScript environments.
- Avoid using Mastra if enterprise-level features or a dual-license model do not align with your project’s requirements or budget, especially when cost-free, fully open-source alternatives exist that
- If you are working on smaller projects where the overhead of a comprehensive framework like Mastra overwhelms the available resources or the scope of work is minimal, consider lighter-weight solutions
Explore
Sources
Every stat on this page traces to a dated GitHub sync, license file, enrichment field, or trust scan.
- GitHub stars (jitsi/jiwer) · observed Jul 11, 2026
- GitHub forks (jitsi/jiwer) · observed Jul 11, 2026
- Last push (jitsi/jiwer) · observed Apr 16, 2026
- License file (Apache-2.0) · observed Jul 11, 2026
- Trust scan (lockfile / OSV) · observed Jul 11, 2026
- GitHub stars (mastra-ai/mastra) · observed Jul 11, 2026
- GitHub forks (mastra-ai/mastra) · observed Jul 11, 2026
- Last push (mastra-ai/mastra) · observed Jul 11, 2026
- License file (Other) · observed Jul 11, 2026
- Decision facts (enrichment) · observed Jul 11, 2026
- Trust scan (lockfile / OSV) · observed Jul 11, 2026
GitHub stars on cards: jiwer 910 · mastra 26k (synced Jul 11, 2026).
Common questions
- What is the difference between jiwer and mastra?
- jiwer: Evaluate your speech-to-text system with similarity measures such as word error rate (WER). mastra: Modern TypeScript framework for AI-powered applications and agents. See the comparison table for live GitHub stats and shared categories.
- When should I choose jiwer over mastra?
- Choose jiwer over mastra when jiwer is primarily Python; mastra is TypeScript; License: jiwer is Apache-2.0, mastra is Other; Tags unique to jiwer: automatic-speech-recognition, word-error-rate, python3, speech-to-text.
- When should I choose mastra over jiwer?
- Choose mastra over jiwer when mastra is primarily TypeScript; jiwer is Python; License: mastra is Other, jiwer is Apache-2.0; Pricing: Free for open-source Apache-licensed portions; Mastra Enterprise License subscription required for full feature access.; Requirements: Project must be developed in TypeScript.; JavaScript and TypeScript ecosystems (Node.js, NextJS) are prerequisites for leveraging Mastra's integrations fully.; Tags unique to mastra: nodejs, agents, llm, ai; Also covers AI Agents, LLM Frameworks; You should use Mastra when you are developing AI-driven applications or bots that require integration with technologies such as text-to-speech (TTS) or complex chatbot functionalities.
- When should I avoid jiwer?
- Evaluation & Observability: Defer heavyweight eval infra only until you have real traffic - never skip it once users depend on answers.
- When should I avoid mastra?
- Mastra may not be suitable if your application does not require TypeScript and prefers simpler setup or non-TypeScript environments. Avoid using Mastra if enterprise-level features or a dual-license model do not align with your project’s requirements or budget, especially when cost-free, fully open-source alternatives exist that If you are working on smaller projects where the overhead of a comprehensive framework like Mastra overwhelms the available resources or the scope of work is minimal, consider lighter-weight solutions
- Is jiwer or mastra more popular on GitHub?
- mastra has more GitHub stars (26,038 vs 910). Stars measure visibility, not whether either tool fits your constraints.
- Are jiwer and mastra open source?
- Yes - both are open-source projects on GitHub (jiwer: Apache-2.0, mastra: Other).
- Where can I find alternatives to jiwer or mastra?
- GraphCanon lists graph-backed alternatives at jiwer alternatives and mastra alternatives (jiwer markdown twin, mastra 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, jiwer or mastra?
- jiwer: Steady. mastra: 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 jiwer and mastra?
- GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: jiwer trust report; mastra trust report.