Describe what you want in plain English. Get a verified .jar that drops on your server and runs — not a code snippet to figure out yourself.
Every generation is compiled against the real Paper API, statically analysed, auto-healed if needed, and packaged as a .jar — with no local tooling required.
Complex plugins follow real backend patterns: layered manager classes, async-safe player data loading with CompletableFuture dedup maps, bounded write queues, config-driven backpressure semaphores, stale-task guards after /reload, and copy-on-write data snapshots. Not AI toy output — actual senior-level code.
Describe your plugin in plain English. StackNest generates the Java source, compiles it against the real Paper API, runs static analysis, and packages a .jar that drops straight onto your server. No compiler setup. No boilerplate. No guesswork.
When a generation misses the mark, the system reads compile and YAML feedback, then retries with targeted corrections instead of forcing you to start over.
AutomaticFree usage is optimized for fast generation. Paid plans unlock higher-quality cloud reasoning, deeper repair flows, and better reliability for larger plugin requests.
Free & PremiumBrowse examples, inspect outputs, and publish your own projects so other server owners can learn from real prompts, real plugin structures, and working releases.
NewReview and refine generated files in the browser with syntax highlighting, multi-file tabs, JAR export, and source downloads when you want to continue locally.
NewUse /generate and /validate inside your Discord server without opening a browser. Great for server teams where the conversation is already in Discord. Plus: generate a full Discord bot, deploy it to StackNest hosting, and manage it from your dashboard.
Paste server logs or upload crash output to get a cleaner diagnosis, likely causes, and actionable next steps without digging through stack traces manually.
NewDownload a ready-to-test JAR, keep the source for manual edits, or move into your normal Paper workflow when a project outgrows one-click generation.
Switch to Mod mode in the generator, pick your loader and Minecraft version, and get a complete Java mod — main class, metadata file, Gradle build config, and feature stubs like custom items, blocks, commands, and events.
NewAfter generating a plugin, Starter and above can click Test on Server to boot a real Paper 1.21.1 instance, load the plugin, and get a structured report — errors, warnings, stack traces, and AI-powered fix hints — all in under 60 seconds. No server required on your end.
Starter+Two new modes for non-Java workflows. Skript generates Paper-compatible .sk scripts with correct indentation, event syntax, and variable scopes — based on the full Skript 2.x docs. Datapacks output a complete file tree: pack.mcmeta, functions, advancements, recipes, loot tables, and scoreboard logic ready for MC 1.21+.
Generate for the modern Paper ecosystem, Fabric and Forge mod loaders, proxy networks, Skript scripts, and vanilla datapacks — all from one place.
| Feature | StackNest | Others |
|---|---|---|
| Folia multi-threaded support | ✔ | ✗ |
| Thread-safe async & production patterns | ✔ | ✗ |
| Velocity / BungeeCord plugins | ✔ | ✗ |
| Skript script generation | ✔ | ✗ |
| Vanilla datapack generation | ✔ | ✗ |
| 5-pass auto-healing loop | ✔ | ✗ |
| Automatic plugin.yml repair | ✔ | ✗ |
| Deep AI code validation | ✔ | ✗ |
| Built-in browser editor | ✔ | ✗ |
| Server log analyser | ✔ | ✗ |
| Community gallery & uploads | ✔ | ✗ |
| Fabric / Forge / NeoForge mods | ✔ | ✗ |
| Hosted Discord bot generation | ✔ | ✗ |
| Live server testing (Beta) | ✔ | ✗ |
Every generation runs through 12 verified stages. The output you get has been compiled, tested, and auto-healed before it reaches your editor.
No credit card required to get started. Upgrade any time for higher limits and cloud AI features.
Yes. The StackNest Discord bot supports /generate and /validate slash commands. Type your plugin description into Discord, get the generated code back in the channel, and use /validate to run a deep code review — all without leaving Discord. Join the server at discord.gg/vebvd8PRzv and link your account to get started.
Yes. Every generation runs through a real Java compiler (javac) against the PaperMC API. If compilation fails, the feedback loop automatically heals the code and retries up to 5 times. Plugins marked "Compiled Successfully" have 0 errors and are ready to drop into your server.
StackNest targets modern Paper 1.21 by default and also supports Folia, proxy-oriented workflows, and Skript generation for faster scripting use cases. If you need a specific target, say so directly in the prompt.
Free requests prioritize fast, cost-efficient generation. Paid plans unlock stronger cloud reasoning, better recovery for larger requests, and deeper validation tooling. The platform automatically chooses the best available path for the plan you are on.
Absolutely. Every generated plugin can be opened in the built-in web editor, which provides Java and YAML syntax highlighting, multi-file tabs, one-click deployable JAR download, and optional source ZIP export — no local tooling required.
Yes. Free accounts get 3 full plugin generations per month and 20 prompt previews. Starter, Pro, and Studio raise limits and unlock stronger generation, support, and collaboration features as your usage grows.
Yes. Switch to Mods mode in the generator using the pill toggle at the top of the composer. Choose your mod loader (Fabric, Forge, or NeoForge) and Minecraft version, select feature chips like custom items, blocks, commands, or events, then hit Generate. The output includes a main Java class, the mod metadata file (fabric.mod.json or mods.toml), and a Gradle build stub. Mod generation uses the cloud AI tier for better quality results.
Join the StackNest Discord to use /generate and /validate slash commands directly in your server — no browser needed. Also get prompt help, product updates, and support when a generation needs another pass.
/generate to build plugins directly in your Discord server — no browser needed