Anvil UI vs Snowstorm

Anvil UI is a web-based visual editor for Minecraft Bedrock JSON UI. It loads a resource pack’s JSON UI files, textures, namespaces, and dependencies so users can build interfaces on a canvas without writing JSON. Changes render instantly in a preview that reproduces anchors, nine-slice elements, fonts, and bindings. The editor supports panels, grids, sliders, scroll views, custom renderers, inheritance, interactive states, bindings, and Bedrock animations. Users can create Server Forms, Chest UIs, HUDs, or custom screens from a blank page or template, then save buttons, cards, and menus in a reusable library. The Free plan costs nothing, billed forever, with unlimited UI projects, the full visual editor, live Bedrock preview, and three cloud packs. Creator costs €12 a month, billed monthly, and adds JSON, PNG, and payload exports, full JSON code, premium updates, and up to 50 cloud packs. Founder's Lifetime costs €249, paid once, billed one time, with Creator features forever and up to 100 cloud packs.

Snowstorm is a custom editor and generator for Minecraft Bedrock Edition particle files. Its web app is available at snowstorm.app, and a Visual Studio Code extension provides another way to edit particle files; that extension requires the name pattern *.particle.json. A Quick Setup tab offers preset particle motions and appearances to get a project started. Files can be added to Minecraft Bedrock resource packs and used in experiences. The project repository identifies JannisX11 as owner, lists a GPL-3.0 license, and says the web app can be hosted locally using a preferred local server. Snowstorm is free, with a listed free version at free. The supplied platform listings include Android, iOS, Linux, macOS, web, Windows, and extension. Snowstorm is also described as a decentralized microproxy network, with client and volunteer-peer uses for censorship circumvention. Microsoft Learn says it is provided by external contributors, not Mojang or Microsoft.