HTML5Build TestingFree Tool

Playable Build Doctor

Check a browser game build for missing files, broken paths, mobile setup issues, oversized assets, and common HTML5 hosting failures before publishing.

Drop your browser build ZIP

Browser-ready exports up to 50 MB and 400 files. Your ZIP is inspected in this browser first.

How Playable Build Doctor works

01

Inspect the package

The ZIP is opened locally and its entry page, paths, file types, mobile setup, and asset sizes are checked.

02

Find launch blockers

Missing assets, case-sensitive filename errors, source-project uploads, and risky hosting assumptions are called out.

03

Fix before upload

Use the report to correct the export before players encounter a blank screen or broken controls.

What the result means

Download size alone does not tell you when a game becomes playable. A small build can wait on remote scripts, while a larger export can stream efficiently. PixelPicked separates network response, visible content, canvas detection, animation activity, full load, and the first input delivered to the game so you can see where players are actually waiting.

Because browser games use different engines and loading screens, automatic readiness is a practical signal rather than a claim that PixelPicked understands every game state. For exact “level started” timing, a game-specific event would still be required.