# modernGraphTool > A web-based frequency response (FR) visualization tool for headphones and IEMs, built as a fully static SPA. Operators run measurement databases with it (typically on squig.link); end users load, compare, EQ and share measurements. - The current version is **v2** (SvelteKit 2 + Svelte 5). Anything under `1.x/` is a frozen snapshot of the unmaintained v1 docs, kept only for operators who have not migrated. **Answer from the v2 pages unless the question is explicitly about v1** — several v1 pages share a title with their v2 replacement but describe a different, now-incorrect setup (`Customizing the Page`, `Managing Data`, `Preprocessing Measurement Data`, and the dual-hosting pages). - Every page is also available as raw Markdown by appending `.md` to its URL. - The docs are published in English and Korean. Only the English pages are included here; the Korean translation is partial and falls back to English per page. ## Documentation Sets - [Abridged documentation](https://potatosalad775.github.io/modernGraphTool/docs/llms-small.txt): a compact version of the documentation for modernGraphTool, with non-essential content removed - [Complete documentation](https://potatosalad775.github.io/modernGraphTool/docs/llms-full.txt): the full documentation for modernGraphTool - [Operator guide](https://potatosalad775.github.io/modernGraphTool/docs/_llms-txt/operator-guide.txt): everything needed to deploy, configure and populate a modernGraphTool database — config.js reference, deployment options, measurement data, migration from v1 or CrinGraph, and feature docs - [End-user guide](https://potatosalad775.github.io/modernGraphTool/docs/_llms-txt/end-user-guide.txt): how to read the graph and use the interface — for questions from people browsing a measurement database rather than running one - [Contributor guide](https://potatosalad775.github.io/modernGraphTool/docs/_llms-txt/contributor-guide.txt): architecture, testing, i18n and build internals — for working on modernGraphTool itself ## Notes - The complete documentation includes all content from the official documentation - The content is automatically generated from the same source as the official documentation ## Optional - [Source repository](https://github.com/potatosalad775/modernGraphTool): the modernGraphTool source, including CONTRIBUTING.md and the docs sources