Open source Written in Lua. Extensible and open.

Cross-platform Windows, Mac OSX, and Linux: your choice.

Portable Run it from any folder. No installation required.

Scope aware selection Select instances of a variable in the current scope with Ctrl/Cmd-DblClick. Type a new name.

Go to definition Go to a local variable/function definition. Navigate back using the history of saved positions.

Multi-cursor editing Select and edit at multiple cursor positions at the same time using Ctrl/Cmd-Click and Ctrl/Cmd-Select.

Function outline Review and navigate all functions (and their parameters) defined in the current file, including anonymous ones.

Small With the Windows and OSX installation packages being less than 5MB, it is one of the smallest if not the smallest fully featured IDE.

Configurable Tabs or spaces? 2 or 4? As everyone has its own preferences, ZeroBrane Studio gives you sensible defaults and a way to change them.

Debug any Lua application Set breakpoints before or during debugging. Step in, over, and out. Break and continue your script. Review the call stack. Inspect and modify variables.

Instantly usable Ever opened a new tool and didn’t know where to start? ZeroBrane Studio provides integrated lessons on how to use it and over 50 demo scripts to get you started.

Custom intepreters Want to integrate ZeroBrane Studio with your own Lua engine? If none of the provided interpreters work for you, you can write your own as some of the users have done.

Lightweight Run it without fearing it will take over your computer.

Unicode friendly Edit files in Unicode and run scripts with Unicode file names.

Function and expression calltip Quickly access function description or variable/expression values while debugging.

Static analyzer Detect typos, non-localized variables, and unused parameters before running your code.

Auto-complete Use auto-complete to save time on typing API functions and variable names (scope-aware).

Multi-file editing Keep as many files open as you need and navigate them using the file browser or the editor tabs.

Color scheme support Use one of the provided color schemes (Tomorrow, Zenburn, Solarized and others) or create your own.

Watch view Use a convenient way to evaluate variables and expressions (including tables) after every step of the debugger.

Live coding Execute your application as you are coding it. Detect syntax and run-time errors quickly; change numeric parameters on the fly with sliders.

Pretty printing If for k,v in pairs(tbl) do print(k,v) end works for you, you will not miss the integrated pretty printing of any value in a line or block form.

Translatable interface Use one of the provided translations (English, French, Spanish, Russian, German, Chinese, Esperanto, Italian, and Brazilian Portuguese) or creare your own.

Project file browser Don’t worry about creating a new project, simply open a folder. The current file will be highlighted in the project tree (as long as it is in one of the subfolders).

Stack view Explore not only the call stack with function names, but also all local variables and upvalues for each of the stack frames. Drill down to get values of individual elements in tables.

Interactive console Want to test something quickly? Run it in the console with full access to your application state and all variables; execute code fragments and change variable values without restarting your application.

what a breath of fresh air. (doctorbling)

Love the debugger, saving my life. (Troy Sandal)

Thanks again for your awesome IDE. I’ve moved over to it, forsaking my previous investment in Decoda! (Stephen Nichols)

ZBS is beautiful experience. I am using it usually 10 hrs every day w/o problems. (Srdjan Markovic)

...heartily recommend it. (stun)

I love ZBS. I use it for all of the work I’ve started doing in Lua and even tossed it on my PortableApps installation...! This IDE is fantastic! (Eddie Dover)

ZeroBrane Studio has got a working debugger, full IDE feature set, small footprint, and is completely customizable in lua. You have no idea how excited I was to find this little gem! (Jonathan Shieh)

It's a joy to use;... totally rock solid. (Jeff Smith)

Complaining about Zerobrane is like complaining that a beautiful spring day is a couple degrees too warm. (Jim Burnes)