Free Haskell to Gleam Converter
How to use this tool?
This free online converter lets you convert code from Haskell to Gleam in a click of a button. To use this converter, take the following steps -
- Type or paste your Haskell code in the input box.
- Click the convert button.
- The resulting Gleam code from the conversion will be displayed in the output box.
Key differences between Haskell and Gleam
| Characteristic | Haskell | Gleam |
|---|---|---|
| Syntax | Uses a concise, indentation-sensitive syntax with significant whitespace and infix operators; can be challenging for beginners. | Has a simple, ML-inspired syntax with clear structure and explicit delimiters; designed for readability and approachability. |
| Paradigm | Purely functional programming with lazy evaluation and strong emphasis on immutability. | Functional programming with strict (eager) evaluation, designed for simplicity and practical use on the BEAM (Erlang VM). |
| Typing | Statically typed with advanced type system features like type inference, type classes, and higher-kinded types. | Statically typed with type inference and algebraic data types, but with a simpler type system than Haskell. |
| Performance | Compiled to native code; performance can be high but may be affected by laziness and garbage collection. | Compiles to Erlang or JavaScript; inherits the concurrency and reliability of the BEAM, but not as fast as native code. |
| Libraries and frameworks | Rich ecosystem with many libraries and frameworks, especially for academic, research, and some web applications. | Smaller but growing ecosystem; can interoperate with Erlang and Elixir libraries, expanding available options. |
| Community and support | Large, established community with extensive documentation, tutorials, and active forums. | Smaller, newer community; friendly and active, but with fewer resources and less mature support. |
| Learning curve | Steep learning curve due to advanced type system, lazy evaluation, and unique syntax. | Gentler learning curve, designed to be beginner-friendly and easy to pick up for those new to functional programming. |
Frequently Asked Questions
How do I convert Haskell to Gleam?
Paste your Haskell code into the input box, confirm the languages are set to Haskell and Gleam, and click Convert. CodeConvert AI analyzes your Haskell code and generates equivalent Gleam code in seconds, preserving the original logic and structure.
What are the main differences between Haskell and Gleam?
Haskell 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 Haskell construct to its closest Gleam equivalent. See the comparison table below for the key differences between Haskell and Gleam.
Is the converted Gleam code accurate?
The AI produces high-quality Gleam code that preserves the behavior of your original Haskell code and follows Gleam conventions. It handles common patterns, data structures, and idioms for both Haskell and Gleam. For large or performance-critical code, review and test the Gleam output before using it in production.
Can I convert an entire Haskell project to Gleam?
You can convert Haskell 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 Haskell 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 Haskell?
Yes. CodeConvert AI converts in both directions, so you can convert Gleam to Haskell just as easily using our Gleam to Haskell converter. Try the Gleam to Haskell Converter
Is the Haskell 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 Haskell 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.
