Three simple steps
How to use this tool?
This free online converter translates Gleam source code into Kotlin in three simple steps.
- Step 1
Add your Gleam code
Type, paste, or upload the Gleam code you want to translate.
- Step 2
Convert the code
Click Convert to translate the source code into Kotlin.
- Step 3
Review the result
Review, copy, or download the resulting Kotlin code from the output editor.
Language comparison
Key differences between Gleam and Kotlin
| Characteristic | Gleam | Kotlin |
|---|---|---|
| Syntax | Clean, concise, inspired by ML-family languages; uses significant whitespace and pattern matching. | Modern, concise, similar to Java and influenced by other C-like languages; uses braces and semicolons are optional. |
| Paradigm | Purely functional, immutable by default, strong emphasis on functional programming. | Multi-paradigm; supports object-oriented, functional, and procedural programming. |
| Typing | Statically typed with strong type inference and no nulls. | Statically typed with type inference; supports nullable and non-nullable types. |
| Performance | Compiles to Erlang BEAM or JavaScript; performance is similar to Erlang/Elixir for BEAM target. | Compiles to JVM bytecode, JavaScript, or native binaries; performance is close to Java on JVM. |
| Libraries and frameworks | Limited ecosystem; can use Erlang/Elixir libraries but lacks dedicated frameworks. | Rich ecosystem; access to Java libraries and frameworks, plus Kotlin-specific ones like Ktor and kotlinx. |
| Community and support | Small but growing community; limited resources and support. | Large, active community; strong support from JetBrains and widespread industry adoption. |
| Learning curve | Gentle for those familiar with functional programming; may be challenging for newcomers. | Easy for Java developers; approachable for beginners due to clear syntax and extensive documentation. |
Common questions
Frequently Asked Questions
How do I convert Gleam to Kotlin?
Paste your Gleam code into the input box, confirm the languages are set to Gleam and Kotlin, and click Convert. CodeConvert AI analyzes your Gleam code and generates equivalent Kotlin code in seconds, preserving the original logic and structure.
What are the main differences between Gleam and Kotlin?
Gleam and Kotlin differ in syntax, type system, standard libraries, and common idioms, so copying code line for line usually will not compile. The converter maps each Gleam construct to its closest Kotlin equivalent. See the comparison table below for the key differences between Gleam and Kotlin.
Is the converted Kotlin code accurate?
The AI produces high-quality Kotlin code that preserves the behavior of your original Gleam code and follows Kotlin conventions. It handles common patterns, data structures, and idioms for both Gleam and Kotlin. For large or performance-critical code, review and test the Kotlin output before using it in production.
Can I convert an entire Gleam project to Kotlin?
You can convert Gleam files one at a time by pasting each file's code. For a full migration, convert each file and then review how classes, dependencies, and project structure map from Gleam to Kotlin. Signing in for free raises the input limit to 25,000 characters per conversion for larger files.
Can I convert Kotlin back to Gleam?
Yes. CodeConvert AI converts in both directions, so you can convert Kotlin to Gleam just as easily using our Kotlin to Gleam converter. Try the Kotlin to Gleam Converter
Is the Gleam to Kotlin converter free, and do I need to install anything?
Yes, it is free and runs in your browser with nothing to install and no IDE extension required. You can convert Gleam to Kotlin without an account for up to 5 conversions per day. Sign in for free for higher limits.
What are the benefits of signing in?
Signing in unlocks CodeConvert AI's Pro converter with more powerful AI models, a built-in chat assistant, code execution, saved conversion history, and personal notes. Every free account includes 5 credits and supports up to 25,000 characters of input per conversion, with no credit card required.
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