--- title: "prompttools vs prompt-master" type: "comparison" canonical_url: "https://www.graphcanon.com/compare/hegelai-prompttools-vs-nidhinjs-prompt-master" tools: ["hegelai-prompttools", "nidhinjs-prompt-master"] --- # prompttools vs prompt-master *GraphCanon updated Aug 7, 2026* ## Verdict Pick prompttools if prompttools aims to support developers in the testing and experimentation of prompts for language models as well as integrating vector databases through Python utilities; pick prompt-master if prompt-master is designed to generate precise AI tool prompts using Claude technology, emphasizing full context and memory retention with no wasted tokens. [prompttools](http://prompttools.readthedocs.io) reports 3.0k GitHub stars, 255 forks, and 41 open issues, last pushed Feb 11, 2026. [prompt-master](https://github.com/nidhinjs/prompt-master) has 11k stars, 1.3k forks, and 22 open issues, last pushed Jun 10, 2026. Figures are from public GitHub metadata via [prompttools's repository](https://github.com/hegelai/prompttools) and [prompt-master's repository](https://github.com/nidhinjs/prompt-master). | | [prompttools](/tools/hegelai-prompttools.md) | [prompt-master](/tools/nidhinjs-prompt-master.md) | | --- | --- | --- | | Tagline | Open-source tools for prompt testing and experimentation | A Claude skill for generating precise AI tool prompts | | Stars | 3,046 | 10,757 | | Forks | 255 | 1,278 | | Open issues | 41 | 22 | | Language | Python | - | | Adopt for | Prompttools aims to support developers in the testing and experimentation of prompts for language models as well as integrating vector databases through Python utilities. | Prompt-master is designed to generate precise AI tool prompts using Claude technology, emphasizing full context and memory retention with no wasted tokens. | | Persona | - | - | | Runtime | - | - | | License | Apache-2.0 | MIT | | Categories | Developer Tools, LLM Frameworks, Vector Databases | Developer Tools, LLM Frameworks | ## Trust and health _Sourced signals - not a safety guarantee. No winner column._ | | [prompttools](/tools/hegelai-prompttools.md) | [prompt-master](/tools/nidhinjs-prompt-master.md) | | --- | --- | --- | | Maintenance | Slowing (36%) | Steady (60%) | | Days since push | 177d | 30d | | Open issues (now) | 41 | 22 | | Owner type | Organization | User | | Full report | [trust report](/tools/hegelai-prompttools/trust.md) | [trust report](/tools/nidhinjs-prompt-master/trust.md) | ## Decision facts: prompttools - **Hosting:** self hosted - **Pricing:** freemium - PromptsTools is open-source under the Apache-2.0 license, making it free to use but with no official support available. - **Adopt for:** Prompttools aims to support developers in the testing and experimentation of prompts for language models as well as integrating vector databases through Python utilities. ## Decision facts: prompt-master - **Adopt for:** Prompt-master is designed to generate precise AI tool prompts using Claude technology, emphasizing full context and memory retention with no wasted tokens. ## Choose when ### Choose prompttools if… - License: prompttools is Apache-2.0, prompt-master is MIT. - Pricing: PromptsTools is open-source under the Apache-2.0 license, making it free to use but with no official support available.. - Tags unique to prompttools: deep-learning, embeddings, large language models, llms. - Also covers Vector Databases. - Prompttools aims to support developers in the testing and experimentation of prompts for language models as well as integrating vector databases through Python utilities. ### Choose prompt-master if… - License: prompt-master is MIT, prompttools is Apache-2.0. - Tags unique to prompt-master: claude-ai, claude-skills, llm. - When needing highly accurate AI prompts specifically tailored for Claude-powered applications that ensure all past contexts are retained without the risk of token wastage. ## When NOT to use prompttools - Last GitHub push was 196 days ago (slowing maintenance, Feb 11, 2026). Validate activity before betting a new project on prompttools. - Developer Tools: A gateway is overkill when you're pinned to a single provider and model. - LLM Frameworks: Avoid a framework for a single prompt-and-retrieve call; the abstraction can cost more than it saves. - Vector Databases: Don't reach for a dedicated vector DB under ~100k vectors; pgvector on your existing Postgres is simpler to operate. ## When NOT to use prompt-master - If working within an ecosystem or on projects not aligned with Claude technology, as prompt-master's full capabilities may be limited outside its designed framework. ## Common questions ### What is the difference between prompttools and prompt-master? prompttools: Open-source tools for prompt testing and experimentation. prompt-master: A Claude skill for generating precise AI tool prompts. See the comparison table for live GitHub stats and shared categories. ### When should I choose prompttools over prompt-master? Choose prompttools over prompt-master when License: prompttools is Apache-2.0, prompt-master is MIT; Pricing: PromptsTools is open-source under the Apache-2.0 license, making it free to use but with no official support available.; Tags unique to prompttools: deep-learning, embeddings, large language models, llms; Also covers Vector Databases; Prompttools aims to support developers in the testing and experimentation of prompts for language models as well as integrating vector databases through Python utilities. ### When should I choose prompt-master over prompttools? Choose prompt-master over prompttools when License: prompt-master is MIT, prompttools is Apache-2.0; Tags unique to prompt-master: claude-ai, claude-skills, llm; When needing highly accurate AI prompts specifically tailored for Claude-powered applications that ensure all past contexts are retained without the risk of token wastage. ### When should I avoid prompttools? Last GitHub push was 196 days ago (slowing maintenance, Feb 11, 2026). Validate activity before betting a new project on prompttools. Developer Tools: A gateway is overkill when you're pinned to a single provider and model. LLM Frameworks: Avoid a framework for a single prompt-and-retrieve call; the abstraction can cost more than it saves. Vector Databases: Don't reach for a dedicated vector DB under ~100k vectors; pgvector on your existing Postgres is simpler to operate. ### When should I avoid prompt-master? If working within an ecosystem or on projects not aligned with Claude technology, as prompt-master's full capabilities may be limited outside its designed framework. ### Is prompttools or prompt-master more popular on GitHub? prompt-master has more GitHub stars (10,757 vs 3,046). Stars measure visibility, not whether either tool fits your constraints. ### Are prompttools and prompt-master open source? Yes - both are open-source projects on GitHub (prompttools: Apache-2.0, prompt-master: MIT). ### Where can I find alternatives to prompttools or prompt-master? GraphCanon lists graph-backed alternatives at [prompttools alternatives](/tools/hegelai-prompttools/alternatives) and [prompt-master alternatives](/tools/nidhinjs-prompt-master/alternatives) ([prompttools markdown twin](/tools/hegelai-prompttools/alternatives.md), [prompt-master markdown twin](/tools/nidhinjs-prompt-master/alternatives.md)), 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](/compare/hegelai-prompttools-vs-nidhinjs-prompt-master.md) mirrors this page for agents and LLM crawlers, with the same stats table and FAQ answers. ### Which is better maintained, prompttools or prompt-master? prompttools: Slowing. prompt-master: Steady. 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-master? GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: [prompttools trust report](/tools/hegelai-prompttools/trust); [prompt-master trust report](/tools/nidhinjs-prompt-master/trust). --- **Machine-readable endpoints** - JSON: [`/api/graphcanon/graph?tool=hegelai-prompttools`](/api/graphcanon/graph?tool=hegelai-prompttools) - LLM index: [/llms.txt](/llms.txt) - Full corpus: [/llms-full.txt](/llms-full.txt) _GraphCanon - The knowledge graph for AI development. https://www.graphcanon.com/_