Nyamuru Manga Name Studio vs ScreenSnapAI

A side-by-side look at pricing, capabilities, pros, cons, and our editorial scores.

	Nyamuru Manga Name Studio Writing	ScreenSnapAI Writing
Tagline	Open-source PWA for drafting manga storyboards (ネーム) with LLM-ready prompts and a structured OMNY data format.	Native macOS screenshot tool that auto-names captures and lets you chat with an LLM about what's on screen.
Category	Writing	Writing
Pricing	Free· Free and open source (MIT License). No paid tiers; users bring their own LLM if they want to use the included AI prompts.	Freemium· Free tier; Pro $20 one-time on Mac App Store (bring-your-own OpenAI/Anthropic key)
Model	Model-agnostic (BYO LLM — prompts designed for ChatGPT, Claude, Gemini, or local models)	OpenAI / Anthropic (BYO key)
Editorial score	—	7.0 / 10
Use cases	Drafting manga storyboards (ネーム) from a prose scriptConverting light-novel scenes into structured panel layouts via an LLMIterating page compositions using NDM v10 pattern templatesRound-tripping storyboards as OMNY YAML between toolsOffline manga name editing for studios with no-cloud policiesBuilding custom manga-production pipelines on top of an open formatTeaching manga storyboarding with a structured, diffable format	screenshot-organizationauto-taggingvisual-qaimage-chatmacos-productivity
Pros	Fully open source under MIT, including code, prompts, docs, and original assets Runs as a single standalone HTML file with offline PWA support and local-storage auto-save Ships a rigorous structured format (NDM v10 / OMNY YAML) so storyboards are diffable and pipeline-friendly Includes ready-made LLM prompts that convert prose manuscripts into typed manga-name YAML Model-agnostic — works with any LLM the creator prefers (ChatGPT, Claude, Gemini, local) Pattern-template library (layouts A–Q) speeds up common page compositions No account, no cloud, no telemetry — usable behind studio firewalls	One-time $20 price instead of a subscription Native macOS app, fast and unobtrusive Choice of OpenAI or Anthropic backends Auto-names and tags screenshots for real searchability Inline chat about a captured region without app-switching
Cons	Japanese-only UI and documentation; non-Japanese users will need to translate the interface No built-in AI — you must copy prompts into an external LLM and paste OMNY back Small solo project (single maintainer, ~10 GitHub stars) with limited support and roadmap visibility Not a drawing tool — outputs storyboards and structured data, not finished art or pages Local-storage-only persistence means clearing browser data can lose work if not exported	macOS only, no Windows/Linux/iOS Requires your own LLM API keys (running costs add up) No public API for automation pipelines Niche utility, not a full asset-management system
Website	sa-san10.github.io	screensnap.ai

Pick Nyamuru Manga Name Studio if

✅ Fully open source under MIT, including code, prompts, docs, and original assets
✅ Runs as a single standalone HTML file with offline PWA support and local-storage auto-save
✅ Ships a rigorous structured format (NDM v10 / OMNY YAML) so storyboards are diffable and pipeline-friendly
✅ Includes ready-made LLM prompts that convert prose manuscripts into typed manga-name YAML

Pick ScreenSnapAI if

✅ One-time $20 price instead of a subscription
✅ Native macOS app, fast and unobtrusive
✅ Choice of OpenAI or Anthropic backends
✅ Auto-names and tags screenshots for real searchability

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