Three simple steps
How to use this tool?
This free online converter translates Grain source code into Gleam in three simple steps.
- Step 1
Add your Grain code
Type, paste, or upload the Grain code you want to translate.
- Step 2
Convert the code
Click Convert to translate the source code into Gleam.
- Step 3
Review the result
Review, copy, or download the resulting Gleam code from the output editor.
Language comparison
Key differences between Grain and Gleam
| Characteristic | Grain | Gleam |
|---|---|---|
| Syntax | OCaml-inspired, functional-first syntax with some JavaScript-like elements. | Clean, ML-style syntax, similar to Elm or ReasonML, designed for clarity and simplicity. |
| Paradigm | Functional-first, supports imperative constructs, strong emphasis on immutability. | Purely functional, immutable by default, designed for reliability and maintainability. |
| Typing | Statically typed with type inference, inspired by ML-family languages. | Statically typed with strong type inference, similar to Elm and Haskell. |
| Performance | Compiles to WebAssembly, aiming for high performance in browser and server environments. | Compiles to Erlang BEAM and JavaScript, performance is good for concurrent and distributed systems but not as fast as native or WebAssembly. |
| Libraries and frameworks | Smaller ecosystem, growing set of core libraries, limited third-party frameworks. | Leverages Erlang/Elixir ecosystem, can use many BEAM libraries, but native Gleam libraries are still developing. |
| Community and support | Small but active community, official Discord and documentation, limited third-party resources. | Small but enthusiastic community, good documentation, active Discord, benefits from Erlang/Elixir community. |
| Learning curve | Moderate; easier for those familiar with functional languages, some unique concepts for newcomers. | Gentle; designed for approachability, especially for those new to functional programming. |
Common questions
Frequently Asked Questions
How do I convert Grain to Gleam?
Paste your Grain code into the input box, confirm the languages are set to Grain and Gleam, and click Convert. CodeConvert AI analyzes your Grain code and generates equivalent Gleam code in seconds, preserving the original logic and structure.
What are the main differences between Grain and Gleam?
Grain and Gleam differ in syntax, type system, standard libraries, and common idioms, so copying code line for line usually will not compile. The converter maps each Grain construct to its closest Gleam equivalent. See the comparison table below for the key differences between Grain and Gleam.
Is the converted Gleam code accurate?
The AI produces high-quality Gleam code that preserves the behavior of your original Grain code and follows Gleam conventions. It handles common patterns, data structures, and idioms for both Grain and Gleam. For large or performance-critical code, review and test the Gleam output before using it in production.
Can I convert an entire Grain project to Gleam?
You can convert Grain 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 Grain to Gleam. Signing in for free raises the input limit to 25,000 characters per conversion for larger files.
Can I convert Gleam back to Grain?
Yes. CodeConvert AI converts in both directions, so you can convert Gleam to Grain just as easily using our Gleam to Grain converter. Try the Gleam to Grain Converter
Is the Grain to Gleam 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 Grain to Gleam 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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