Code Snippet to Social Graphic

A basic highlighter, not a full language parser

This renders your code into a shareable, editor-styled image with line numbers and a macOS-style title bar, using a lightweight heuristic highlighter that recognizes common keywords across JavaScript, Python, PHP and similar C-like languages, plus strings, comments, and numbers. It is not a complete syntax parser for any one language, so occasionally a token in an unusual language or edge case may not be colored as you would expect.

Why a heuristic highlighter is used instead of a full parser for each language

A complete, accurate parser needs to be built separately for each programming language's specific grammar - a genuinely large undertaking for a simple image-generation tool. A shared heuristic that recognizes common patterns (keywords, strings, comments, numbers) across many C-like and Python-like languages covers the vast majority of real-world snippets reasonably well, which is the practical tradeoff this tool makes in exchange for staying simple and fast.

Why strings and comments take priority over keywords when patterns overlap

A word that looks like a keyword can appear inside a string or a comment, where it should be colored as plain string or comment text rather than as code - resolving overlapping matches by giving comments and strings priority over keyword and number matching avoids the common mistake of, say, highlighting the word "return" as a keyword when it actually appears inside a quoted string or an explanatory comment.

Why this produces a downloadable image rather than styled HTML

A rendered PNG image displays identically everywhere it's shared - a social platform, a chat app, an embedded image in a document - with no dependency on the viewer's app supporting syntax-highlighted HTML or a particular font being installed. That universal compatibility is exactly what makes an image the right output format for a tool meant for sharing code snippets across different platforms.

Questions fréquentes

Does this support every programming language?

The keyword and pattern recognition covers common constructs shared across many C-like and Python-like languages, but it is not a dedicated parser for any specific language, so highlighting accuracy varies by language and code style.

Can I change the colors?

Choose between the dark and light theme presets - there is no custom color picker, keeping the tool simple and fast to use.

Why does this use a simplified highlighter instead of a true language parser?

Building a complete, accurate parser for every language's specific grammar is a major undertaking - a shared heuristic covering common patterns across many languages handles most real-world snippets well with far less complexity.

Why might a keyword-looking word inside a string get colored differently than expected?

Strings and comments are given priority over keyword matching, so a word that looks like a keyword but actually appears inside a quoted string or comment is correctly colored as string or comment text instead.

Why does this produce an image instead of a shareable code block?

A rendered image displays identically everywhere it's shared, with no dependency on a particular platform supporting syntax-highlighted HTML or having a specific font installed.