Home/Compare/jiwer vs mastra

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

jiwer logo

jiwer

jitsi/jiwer

910pushed Apr 16, 2026
vs
mastra logo

mastra

mastra-ai/mastra

26kpushed Jul 11, 2026

Trust & integrity

Signaljiwermastra
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

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 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.