The Best Free Browser Tools for Game Developers
Game development is a unique blend of art, engineering, and performance optimization. From managing color palettes for sprites and UI to encoding save game data and building unique player IDs, game developers have a surprisingly wide range of utility needs that don't always fit neatly into Unity or Unreal's built-in tooling. The tools at tools.fun cover these gaps directly in the browser.
Color Picker & Converter
Color is the language of game art. Whether you're matching hex color codes from a designer's Figma mockup to Unity's Color component, converting RGB values to HSL for procedural color variation, or ensuring UI elements maintain consistent visual identity across platforms, the color picker and converter gives you instant translation between all color formats.
Color(r, g, b) constructor takes 0-1 float values. Use the color tool to convert your hex code to RGB, then divide each channel by 255 to get the correct Unity values.Hex Converter
Hex values appear throughout game development beyond just colors: bitmask flags for game entity properties, packed integer formats for compact data storage, and binary protocol messages for multiplayer networking. The hex converter translates between hex, decimal, binary, and ASCII — useful for debugging custom binary serialization formats and understanding packed data structures.
JSON Formatter & Validator
Unity and Unreal both use JSON extensively: PlayerPrefs alternatives, game config files, level data exports, achievement definitions, and cloud save data are all commonly stored as JSON. When a JsonUtility parse error crashes your game at runtime, paste the malformed JSON here to pinpoint the issue without adding debug logging and recompiling.
Base64 Encoder / Decoder
Game save data is often base64-encoded for safe storage in PlayerPrefs, cloud saves, or URL parameters for sharecodes. Cheat prevention systems also use base64 as a first layer of obfuscation. When debugging a corrupted save file or building a shareable level code system, this tool lets you quickly encode and decode base64 game data without writing platform-specific code.
Regex Tester
Game developers use regex for player name validation, chat filter systems, version string parsing, and asset naming convention enforcement. Before deploying a profanity filter regex to your game's chat system or a name validation rule to character creation, test it here against real player inputs to avoid both false positives and false negatives that ruin player experience.
Unix Timestamp Converter
Timed events are fundamental to game design: daily login rewards, limited-time events, season end dates, and matchmaking queue timing all rely on timestamps. Converting between Unix timestamps and human-readable dates helps verify that your game's event schedule is correct and that time-based game logic will behave as expected across different player timezones.
Text Diff Tool
Game development involves constant iteration on configuration files, dialogue scripts, and balance tables. Comparing two versions of a game's balance spreadsheet export, a localization string file, or a level configuration JSON helps track exactly what changed between builds. The diff tool provides this comparison without needing version control access.
Password Generator
Game backend services need strong secrets: game server API keys, leaderboard signing secrets, in-app purchase receipt validation keys, and admin panel passwords. The password generator produces cryptographically strong random values for all these use cases, helping keep your game's backend infrastructure secure against unauthorized access.
QR Code Generator
QR codes have found their way into game design: linking physical merchandise to digital in-game rewards, creating scannable ARG (alternate reality game) puzzle elements, building cross-platform authentication flows between mobile and console, and generating unique player invite codes. The QR generator turns any URL or text into a scannable code instantly.
Code to Image
Sharing game code snippets in devlogs, on social media, or in community Discord servers is much more appealing with syntax-highlighted code images than raw text pastes. The code-to-image tool converts your code into a beautiful shareable image that renders correctly in any context, making your technical posts more engaging for the game dev community.
Character & Word Counter
Game writing has strict constraints: UI text boxes have pixel limits, achievement descriptions have character maximums, and localization budgets depend on source string lengths. The character counter helps writers and designers stay within these constraints, and helps localization managers estimate translation costs before sending strings to translators.
Game development is one of the most varied disciplines in tech — you're an artist, an engineer, a designer, and a data analyst all at once. Bookmark tools.fun for the utility moments that arise throughout your development day.
← Back