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Free Roblox creator tools

Four free tools for making and selling Roblox games: a game idea generator, a DevEx calculator, a Robux tax calculator and a thumbnail size checker. Each one works in your browser, with no login.

  • Screenshot of the game idea generator showing an obby idea, Giant Desk Dash, with its pitch, its core loop and three features.
    • Ideas
    • No AI, no login

    Roblox game idea generator

    Pick a genre and your skill level. Get a game with its core loop, three features, a description for Roblox and the first prompts to build it.

    Get an idea 7 genres, 3 skill levels

  • Screenshot of the DevEx calculator: 30,000 Earned Robux comes to about $114.00 at the standard rate of $0.0038 a Robux, with the old rate below.
    • Calculator
    • Robux to USD

    DevEx calculator

    Robux to US dollars and back at Roblox’s published DevEx rates, with the cash-out requirements beside the result.

    Convert Robux Rates checked 18 Oct 2026

  • Screenshot of the Robux tax calculator: a 100 Robux game pass pays 70 Robux after Roblox’s 30% fee, worth $0.27 at DevEx.
    • Calculator
    • Fees and payout

    Robux tax calculator

    What a game pass, developer product, private server or avatar item pays you after Roblox’s share, and the price to set for the amount you want.

    Work out a sale Fees checked 18 Oct 2026

  • Screenshot of the thumbnail checker with a sample image: a 960 × 600 WebP gets 3 things to fix, starting with its file type, which is not in Roblox’s thumbnail list.
    • Checker
    • Nothing uploaded

    Thumbnail and icon size checker

    Drop an image to check its size, shape, file size and real file type against Roblox’s specs for thumbnails, game icons and pass or badge icons.

    Check an image Sizes checked 18 Oct 2026

Roblox Studio scriptsCopy-ready, type-checked Luau from our guides, sorted by what it builds: movement, combat, UI, saving, economy and world.Browse the scripts

Screenshots of each tool, taken 18 October 2026. The rates, fees and sizes in them come from Roblox’s own pages, checked that day; each tool page links its sources, and so does this page.

Where each one fits

From an idea to a published game

Four steps every Roblox game goes through, and the free tool for each.

  1. Step 1

    Pick an idea

    Choose a genre and your skill level, and get a game you can build, with the first prompts.

  2. Step 2

    Build the systems

    Copy a checked script from a guide, or have RoCode build the system in your own place.

  3. Step 3

    Get the pictures right

    Check your thumbnail and game icon against Roblox’s sizes before you upload them.

  4. Step 4

    Price it, then cash out

    See what a pass or item pays after Roblox’s share, and what your Robux are worth at DevEx.

Free scripts

Copy-ready Roblox Studio scripts

Each one comes from a guide: copy it with one click, see where it goes and what to change. Hover a card to play it.

The loops are illustrations of what each guide’s finished code does, not recordings of a RoCode run. See every script.

Why use them

Small tools that do one job each

  • No login

    Open a tool and use it. No account, no email and no card.

  • Works on your device

    The sums and the image checks run in your browser, and the images you check are never uploaded.

  • Dated Roblox sources

    Every Roblox rate, fee and size links to Roblox’s own pages, with the date we checked it.

FAQ

Questions

Are these Roblox tools free?

Yes. The four tools and the scripts are free, with no account and no login. Only RoCode itself, the AI agent that builds in your Studio place, needs you to sign in, and it comes with free credits every day.

Do I need Roblox Studio to use them?

Not for the tools: the idea generator, the two calculators and the thumbnail checker work in any browser, on a phone too. The scripts go into Roblox Studio, which runs on Windows or Mac, and so does RoCode.

Where do the Robux numbers and sizes come from?

From Roblox’s own Creator Docs, help center and announcements. Each tool page lists the pages it uses and the date they were checked, which is 18 October 2026 for the two calculators and the thumbnail checker. Roblox can change its rates, fees and sizes, so check its docs before a big decision.

Are the scripts tested?

Each script’s box in its guide says how it was checked and when: type-checked with luau-lsp in strict mode, and playtested in Studio only where the box says so, with the date.

Is RoCode made by Roblox?

No. RoCode is an independent product, not affiliated with, endorsed by or sponsored by Roblox Corporation. The tools use the numbers Roblox publishes and never connect to your Roblox account.

Link to these tools from a DevForum post or your own page
<a href="https://www.rocode.app/tools">Free Roblox creator tools</a>
Sources and dates

Each tool page lists every source it uses. RoCode is an independent product, not made by Roblox, and these tools do not talk to Roblox.

Have an idea? Build it in Studio.

RoCode, the AI agent for Roblox Studio, builds your game one feature at a time in the place you have open. Free credits every day, no card.

See the AI game maker Start free

Needs Roblox Studio on Windows or Mac and a desktop browser. RoCode is independent, not made by Roblox.