Crazy Eyes UI Tester

top restarting your server to check a button.

Crazy Eyes UI Tester is a desktop app for anyone building HTML interfaces, especially FiveM and RedM NUI. Drag your folder onto the window and your UI appears instantly, reloading every time you save. Then test it the way the game would:

• Send events exactly like SendNUIMessage does. Events found in your Lua and JS are listed for one-click sending.
• Catch callbacks. Every fetch('https://resource/callback') is intercepted, logged, and answered with mock data you control.
• Run functions. Every global function in your scripts is listed with argument boxes and results.
• Preview over a backdrop. RedM Old West scenes, FiveM city scenes, or your own in-game screenshot, at 1080p, 1440p, tablet or phone sizes.
• Record scenarios. Capture a full flow (open shop, update money, notify, close) and replay it identically every time.
• Export store images. One click saves a PNG of the preview, or a transparent PNG of just your UI with soft edges and glows kept.
• Instant license key by email and in your account · Free updates· Use on up to [3] of your computers

Works for plain websites too: open the folder, pick a page, and links between pages work.

Built by a developer who ships FiveM/RedM scripts, for faster shipping of your own.

Feature list (bullets)

• Live preview with auto-reload on save
• FiveM / RedM mode: GetParentResourceName, NUI callbacks, ui_page detection from fxmanifest.lua
• Event sender with detected events and history
• Callback log with editable mock answers
• Function runner with async support
• Console capture (logs, errors, failed loads) and an Eval box
• Scenarios: record, edit delays, replay
• Backdrops: Frontier dusk, Desert noon, Saloon night, Snowy pass, City dusk/night/day, checker, black, white, your image
• Screenshot, copy to clipboard, transparent PNG export
• Resizable side panel; settings remembered per folder
• Automatic updates for license holders

Requirements

• Windows 10 or 11 (64-bit)
• Internet connection to activate and to download updates (works offline for 14 days between checks)

What it doesn't do (YET)

• It cannot run Lua, game natives, or engines (Unreal/Unity). It tests the HTML/JS UI side; anything Lua would compute, you supply through events and mock answers.
• Functions declared with let/const or inside bundler closures aren't listed (use Eval, or attach to window).
• nui:// and cfx-nui- asset URLs aren't rewritten; use relative paths.