# Mermaid third-party support alpha testers **URL:** \ **Category:** Showcase & Feedback\ **Created:** [November 21, 2025, 9:13pm UTC](https://platform.jetbrains.com/t/mermaid-third-party-support-alpha-testers/3169 "2025-11-21T21:13:38Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![dseptimus](https://sea1.discourse-cdn.com/flex001/user_avatar/platform.jetbrains.com/dseptimus/32/2805_2.png) [@dseptimus](https://platform.jetbrains.com/u/dseptimus)\ **Post date:** [November 21, 2025, 9:13pm UTC](https://platform.jetbrains.com/t/mermaid-third-party-support-alpha-testers/3169/1 "2025-11-21T21:13:38Z")
Continuing the discussion from [Looking for new maintainers for the ReStructuredText plugin for PyCharm](https://platform.jetbrains.com/t/looking-for-new-maintainers-for-the-restructuredtext-plugin-for-pycharm/3051/12): I’m putting together a group of alpha testers for the new Mermaid plugin I’m working on. For anyone interested (@chriscarini, @jgafner, others), the group is being hosted on my Discord server ([Tachi Labs](https://discord.gg/x52g8kuJ)). Just join the [#mermaid](https://discord.com/channels/1386544382164860970/1440016594414600262) channel and request to join. Communication for the alpha test group will take place in the #mermaid-alpha private channel. The first alpha release will be made available to testers sometime next week. The expectation for testers is active participation in providing feedback and creating feature requests or bug reports. As I mentioned in the original thread, the plan is for a freemium-type offering on release though whether that’s one closed-source freemium-licensed plugin vs two separate/complementary plugins, one closed and one open is still not 100% decided. I’m leaning towards diagram preview and export related features being FOSS, while making highlighting and code intelligence features (inspections, completions, folding, etc.) being paid (though with ~25 diagram types, there’s some leeway to play around with making some of them available in the free version). ---
**Author:** ![yuriy.artamonov](https://sea1.discourse-cdn.com/flex001/user_avatar/platform.jetbrains.com/yuriy.artamonov/32/48_2.png) [@yuriy.artamonov](https://platform.jetbrains.com/u/yuriy.artamonov)\ **Post date:** [November 23, 2025, 7:10pm UTC](https://platform.jetbrains.com/t/mermaid-third-party-support-alpha-testers/3169/2 "2025-11-23T19:10:07Z")
We fully support your effort to build a new Mermaid plugin! ---
**Author:** ![dseptimus](https://sea1.discourse-cdn.com/flex001/user_avatar/platform.jetbrains.com/dseptimus/32/2805_2.png) [@dseptimus](https://platform.jetbrains.com/u/dseptimus)\ **Post date:** [January 30, 2026, 9:24pm UTC](https://platform.jetbrains.com/t/mermaid-third-party-support-alpha-testers/3169/3 "2026-01-30T21:24:39Z")
[Mermaid Studio](https://plugins.jetbrains.com/plugin/29870-mermaid-studio) is now available on the marketplace! Semantic syntax highlighting, robust parsing and contextual code intelligence are powered by proprietary Grammar-Kit parsers – one for each of the 22 supported diagram types. The feature list is large, but some of the notable ones are: - 80+ inspections including and a number of quick fixes - Rich support for Iconify icon sets (including custom repositories and file imports) - Diagram Export - (SVG/PNG) and Print capabilities (print-optimized PNG + system print dialog) - Sync artifacts on save (keeps your PNG/SVG artifacts in sync with the diagram source code) - Live preview, Mermaid-in-Markdown (both language support and live preview) - Rich contextual completions for the vast majority of supported diagram types - Formatters for 10 diagram types so far - MCP Tools for: - Rendering diagrams (SVG/PNG) - Analyzing diagrams for issues using both the IDE-based analysis (parsing + inspections) and Mermaid.js - Searching for available icons in your installed icon sets The rendering pipelines for all use-cases use IntelliJ’s bundled JCEF dependency, so there’s no call out to a separate browser dependency to render the diagrams. I’m continuing to refine support for each diagram type and have a roadmap of exciting features I can’t wait to implement! ![Screenshot 2026-01-30 at 6.41.26 AM](https://us1.discourse-cdn.com/flex001/uploads/jetbrains_platform/original/2X/b/b9d9959db1582074313f64aaa78c867aab4a2604.jpeg) ![Screenshot 2026-01-30 at 6.43.02 AM](https://us1.discourse-cdn.com/flex001/uploads/jetbrains_platform/original/2X/6/65d249d280ea3bf5900cd052e13a99f7b24690b7.png) ![Screenshot 2026-01-30 at 6.47.54 AM](https://us1.discourse-cdn.com/flex001/uploads/jetbrains_platform/original/2X/2/29cca522fc39bbad608590e07fa0209ffd85343a.png) ![Screenshot 2026-01-30 at 6.51.21 AM](https://us1.discourse-cdn.com/flex001/uploads/jetbrains_platform/original/2X/0/095e278f37b3b300fdc19e4caa716d2e93b65bdf.jpeg) Complete documentation is here: [https://mermaidstudio.dev/](https://mermaidstudio.dev/) ---
**Author:** ![dseptimus](https://sea1.discourse-cdn.com/flex001/user_avatar/platform.jetbrains.com/dseptimus/32/2805_2.png) [@dseptimus](https://platform.jetbrains.com/u/dseptimus)\ **Post date:** [January 30, 2026, 9:35pm UTC](https://platform.jetbrains.com/t/mermaid-third-party-support-alpha-testers/3169/4 "2026-01-30T21:35:04Z")
On a related note, the recent release of [Nereid](https://plugins.jetbrains.com/plugin/29877-nereid) has me wondering if there’s still a need for the additional limited OSS offering I was considering? I haven’t tried the plugin myself, so I can’t really speak to its quality/potential as a community baseline offering though it is licensed under GPL v3, which might be an issue for some. ---
**Author:** ![bric3](https://sea1.discourse-cdn.com/flex001/user_avatar/platform.jetbrains.com/bric3/32/58_2.png) [@bric3](https://platform.jetbrains.com/u/bric3)\ **Post date:** [February 19, 2026, 12:30pm UTC](https://platform.jetbrains.com/t/mermaid-third-party-support-alpha-testers/3169/5 "2026-02-19T12:30:41Z")
HI Yuriy, Do you plan to OSS JetBrains’s Mermaid plugin?. ---
**Author:** ![yuriy.artamonov](https://sea1.discourse-cdn.com/flex001/user_avatar/platform.jetbrains.com/yuriy.artamonov/32/48_2.png) [@yuriy.artamonov](https://platform.jetbrains.com/u/yuriy.artamonov)\ **Post date:** [February 19, 2026, 12:37pm UTC](https://platform.jetbrains.com/t/mermaid-third-party-support-alpha-testers/3169/6 "2026-02-19T12:37:31Z")
It is rather hard for us at the moment ( it is part of a bigger monorepo of Grazie project and uses Kotlin multiplatform parts, quite a puzzle to solve ---
**Author:** ![bric3](https://sea1.discourse-cdn.com/flex001/user_avatar/platform.jetbrains.com/bric3/32/58_2.png) [@bric3](https://platform.jetbrains.com/u/bric3)\ **Post date:** [February 19, 2026, 12:40pm UTC](https://platform.jetbrains.com/t/mermaid-third-party-support-alpha-testers/3169/7 "2026-02-19T12:40:26Z")
I see. It would be nice to have it in IntelliJ-plug-ins so it gets easier to contribute to. Thanks for the feedback.