Turn code written in one language into a working translation in another, flagging idioms that don't map directly and explaining the substitute pattern used.
You are a polyglot instructor who has translated the same small function into a dozen languages for teaching purposes, and you know the actual educational value is never in the languages that translate cleanly, it is in the handful of moments where one language's idiom has no direct equivalent in the other, and a silent translation that papers over that gap teaches the target language's syntax without teaching how it actually thinks. My target language is [TO_LANGUAGE:select:Python,JavaScript,Java,C++,Go,Ruby], and my code is: [CODE] If I left [CODE] blank, ask me to paste it before doing anything else instead of inventing a snippet to translate. Identify the source language from the snippet itself and name it before starting. Translate the code block by block rather than line by line where a single source line does not correspond to a single target line, since forcing a strict line-for-line mapping between two languages with different idioms often produces working but unnatural code that no fluent developer in the target language would actually write. For each block, show the original code, the translated code, and a short note on what changed and why, if the translation was direct. If a specific construct in the source language, such as a Python list comprehension, a JavaScript destructuring assignment, or a Ruby block, has no single clean equivalent in [TO_LANGUAGE], say so explicitly, show the substitute pattern the target language actually uses to accomplish the same result, an explicit loop, a helper method, or a different built-in function, and explain briefly why that gap exists, whether the target language lacks that specific syntax feature entirely or simply solves the same problem through a different convention. Once every block is translated, present the complete, working translated code as one continuous block at the end, verified against the original for equivalent behavior, not just equivalent-looking syntax, so that an edge case handled a specific way in the original, such as how an empty list or a missing value is treated, is handled the same way in the translation rather than accidentally changed. Close by naming, in one or two sentences, the single biggest conceptual difference between how the two languages approached this specific piece of logic, since that difference is usually the most useful thing to actually remember once the code itself is closed and forgotten.
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Get Early AccessThe educational value of translating code between languages is never in the parts that map cleanly. It's in the moments where one language's idiom has no direct equivalent in the other, and most tools paper right over those gaps, hiding the differences most worth understanding.
This tool translates your [CODE] into a chosen [TO_LANGUAGE], identifying the source language automatically and working block by block rather than forcing a strict line-for-line mapping, since that often produces working but unnatural code no fluent developer would write. Every block shows the original, the translation, and a note on what changed. When a construct, a Python list comprehension, a JavaScript destructuring assignment, a Ruby block, has no clean equivalent in the target language, that gap gets named directly, the substitute pattern shown, an explicit loop, a helper method, a different built-in, and the reason explained, whether the feature is missing or the language solves the problem differently.
The complete translation appears as one clean block at the end, checked for equivalent behavior rather than just equivalent-looking syntax, so an edge case like an empty list or a missing value is handled the same way, not silently changed. Every session closes by naming the biggest conceptual difference between the two languages, the thing most worth remembering once the code is forgotten. Run it in the Dock Editor for a library of translated examples, pair with the python code explainer for Python idioms explained further, or the code explanation generator for either version walked through plainly.
Drop your code into [CODE] in any language. The source language is identified automatically from the snippet itself.
Set [TO_LANGUAGE] to Python, JavaScript, Java, C++, Go, or Ruby for the working translation.
See the original and translated code together for each logical block, with a note on what changed, translated in blocks rather than forced into a strict line-for-line mapping.
Any construct with no clean one-to-one equivalent in the target language gets named directly, along with the actual substitute pattern the target language uses instead.
Get the full translated code as one clean block at the end, checked for equivalent behavior on edge cases, not just similar-looking syntax.
Translate code you already understand in your primary language into a new one you're learning, seeing exactly where the idioms differ instead of guessing.
Convert working code from one language to another required by a different assignment, with every non-obvious translation decision explained rather than left silent.
See a function you wrote translated into a language you don't know yet, using the flagged idiom gaps as an entry point into that language's actual conventions.
Compare the same piece of logic across two languages side by side, building a mental map of which concepts transfer directly and which ones require a different approach.
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