Comparison
prompttools vs prompt-optimizer
Verdict
Pick prompttools if prompttools is an open-source suite for prompt testing and experimentation, supporting both LLMs and vector databases, making it a versatile choice for developers and researchers working with AI models and data retrieval; pick prompt-optimizer if prompt-optimizer is a TypeScript-based tool for enhancing AI prompts to achieve better AI-generated outcomes. It supports deployment via Vercel and Cloudflare, and.
Markdown twin · prompttools alternatives · prompt-optimizer alternatives
GraphCanon updated Sep 20, 2026
8views this month
vs
Trust & integrity
| Signal | prompttools | prompt-optimizer |
|---|---|---|
| Maintenance | Slowing (219d since push) As of Sep 18, 2026 · github_public_v1 | Active (7d since push) As of Sep 18, 2026 · github_public_v1 |
| Provenance | Not a fork · Organization account As of Sep 18, 2026 · github_public_v1 | Not a fork · Personal account As of Sep 18, 2026 · github_public_v1 |
| OSV dependency advisories | Published findings As of Sep 18, 2026 · osv@v1 | No lockfile (source not queried) As of Sep 18, 2026 · 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
- prompttools
- Open-source tools for prompt testing and experimentation
- prompt-optimizer
- An AI prompt optimizer for writing better prompts and getting better AI results.
Stars
- prompttools
- 3.1k
- prompt-optimizer
- 35k
Forks
- prompttools
- 256
- prompt-optimizer
- 4.1k
Open issues
- prompttools
- 43
- prompt-optimizer
- 8
Language
- prompttools
- Python
- prompt-optimizer
- TypeScript
Adopt for
- prompttools
- Prompttools is an open-source suite for prompt testing and experimentation, supporting both LLMs and vector databases, making it a versatile choice for developers and researchers working with AI models and data retrieval
- prompt-optimizer
- prompt-optimizer is a TypeScript-based tool for enhancing AI prompts to achieve better AI-generated outcomes. It supports deployment via Vercel and Cloudflare, and can be installed as a Chrome extension.
Persona
- prompttools
- -
- prompt-optimizer
- -
Runtime
- prompttools
- -
- prompt-optimizer
- -
License
- prompttools
- Prompttools is distributed under the Apache-2.0 license, allowing for broad use in both commercial and open-source projects
- prompt-optimizer
- Licensed under AGPL-3.0, allowing free use, modification, and commercialization, but requiring the sharing of source code if the software is distributed or offered as a network service.
Last pushed
- prompttools
- Feb 11, 2026
- prompt-optimizer
- Sep 11, 2026
Categories
- prompttools
- Developer Tools, LLM Frameworks, Vector Databases
- prompt-optimizer
- Developer Tools, LLM Frameworks
Trust and health
Maintenance
- prompttools
- Slowing (36%)
- prompt-optimizer
- Active (82%)
Days since push
- prompttools
- 219d
- prompt-optimizer
- 7d
Open issues (now)
- prompttools
- 43
- prompt-optimizer
- 8
Stars delta
- prompttools
- +9 (30d)
- prompt-optimizer
- +1.8k (30d)
Open issues delta
- prompttools
- +2 (30d)
- prompt-optimizer
- +1 (30d)
Owner type
- prompttools
- Organization
- prompt-optimizer
- User
OSV dependency advisories
- prompttools
- Published findings
- prompt-optimizer
- No lockfile (source not queried)
Full report
- prompttools
- Trust report
- prompt-optimizer
- Trust report
Choose prompttools if…
- prompttools is primarily Python; prompt-optimizer is TypeScript.
- License: prompttools is Apache-2.0, prompt-optimizer is Other.
- Requirements: Min 4 GB RAM; Python environment is required for using Prompttools.
- Tags unique to prompttools: deep-learning, embeddings, large-language-models, llms.
- Also covers Vector Databases.
- When you need to test and experiment with prompts for LLMs such as OpenAI and LLaMA, and vector databases like Chroma, Weaviate, and LanceDB
When NOT to use prompttools
- If your project is strictly focused on a single AI framework that does not require prompt testing or experimentation with vector databases
- When you are working in an environment where the Apache-2.0 license is not compatible with your project's licensing requirements
Choose prompt-optimizer if…
- prompt-optimizer is primarily TypeScript; prompttools is Python.
- License: prompt-optimizer is Other, prompttools is Apache-2.0.
- Pricing: Free to use and modify, but commercial use requires sharing the source code..
- Requirements: Min 1 GB RAM; Requires Docker; Requires setting up environment variables for access control and optional API keys.; Supports deployment via Vercel and Cloudflare, and can be installed as a Chrome extension..
- Tags unique to prompt-optimizer: ai-prompts, ai-tools, llm, prompt-optimization.
- prompt-optimizer ships Docker support for self-hosted deployment.
- When you need to improve the quality of AI-generated content by refining your prompts, especially if you are working with TypeScript and prefer deployment options like Vercel or Cloudflare.
When NOT to use prompt-optimizer
- If you are looking for a tool that does not require setting up environment variables for access control or API keys, as prompt-optimizer mandates configuring `ACCESS_PASSWORD` and optionally `VITE_*`.
- When you need a tool that is not licensed under AGPL-3.0, which requires sharing source code if you offer network services or distribute software.
Explore
Sources
Every stat on this page traces to a dated GitHub sync, license file, enrichment field, or trust scan.
- GitHub stars (hegelai/prompttools) · observed Sep 20, 2026
- GitHub forks (hegelai/prompttools) · observed Sep 20, 2026
- Last push (hegelai/prompttools) · observed Feb 11, 2026
- License file (Apache-2.0) · observed Sep 20, 2026
- Decision facts (enrichment) · observed Sep 18, 2026
- Trust scan (lockfile / OSV) · observed Sep 18, 2026
- GitHub stars (linshenkx/prompt-optimizer) · observed Sep 20, 2026
- GitHub forks (linshenkx/prompt-optimizer) · observed Sep 20, 2026
- Last push (linshenkx/prompt-optimizer) · observed Sep 11, 2026
- License file (Other) · observed Sep 20, 2026
- Decision facts (enrichment) · observed Sep 18, 2026
- Trust scan (lockfile / OSV) · observed Sep 18, 2026
GitHub stars on cards: prompttools 3.1k · prompt-optimizer 35k (synced Sep 20, 2026).
Common questions
- What is the difference between prompttools and prompt-optimizer?
- prompttools: Open-source tools for prompt testing and experimentation. prompt-optimizer: An AI prompt optimizer for writing better prompts and getting better AI results.. See the comparison table for live GitHub stats and shared categories.
- When should I choose prompttools over prompt-optimizer?
- Choose prompttools over prompt-optimizer when prompttools is primarily Python; prompt-optimizer is TypeScript; License: prompttools is Apache-2.0, prompt-optimizer is Other; Requirements: Min 4 GB RAM; Python environment is required for using Prompttools; Tags unique to prompttools: deep-learning, embeddings, large-language-models, llms; Also covers Vector Databases; When you need to test and experiment with prompts for LLMs such as OpenAI and LLaMA, and vector databases like Chroma, Weaviate, and LanceDB.
- When should I choose prompt-optimizer over prompttools?
- Choose prompt-optimizer over prompttools when prompt-optimizer is primarily TypeScript; prompttools is Python; License: prompt-optimizer is Other, prompttools is Apache-2.0; Pricing: Free to use and modify, but commercial use requires sharing the source code.; Requirements: Min 1 GB RAM; Requires Docker; Requires setting up environment variables for access control and optional API keys.; Supports deployment via Vercel and Cloudflare, and can be installed as a Chrome extension.; Tags unique to prompt-optimizer: ai-prompts, ai-tools, llm, prompt-optimization; prompt-optimizer ships Docker support for self-hosted deployment; When you need to improve the quality of AI-generated content by refining your prompts, especially if you are working with TypeScript and prefer deployment options like Vercel or Cloudflare.
- When should I avoid prompttools?
- If your project is strictly focused on a single AI framework that does not require prompt testing or experimentation with vector databases When you are working in an environment where the Apache-2.0 license is not compatible with your project's licensing requirements
- When should I avoid prompt-optimizer?
- If you are looking for a tool that does not require setting up environment variables for access control or API keys, as prompt-optimizer mandates configuring
ACCESS_PASSWORDand optionallyVITE_*. When you need a tool that is not licensed under AGPL-3.0, which requires sharing source code if you offer network services or distribute software. - Is prompttools or prompt-optimizer more popular on GitHub?
- prompt-optimizer has more GitHub stars (34,977 vs 3,055). Stars measure visibility, not whether either tool fits your constraints.
- Are prompttools and prompt-optimizer open source?
- Yes - both are open-source projects on GitHub (prompttools: Apache-2.0, prompt-optimizer: Other).
- Where can I find alternatives to prompttools or prompt-optimizer?
- GraphCanon lists graph-backed alternatives at prompttools alternatives and prompt-optimizer alternatives (prompttools markdown twin, prompt-optimizer 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, prompttools or prompt-optimizer?
- prompttools: Slowing. prompt-optimizer: 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 prompttools and prompt-optimizer?
- GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: prompttools trust report; prompt-optimizer trust report.