PromptShow is a lightweight, browser-based utility built by LangGPT.ai for one focused job: making long, dense LLM prompts look good when you share them. You paste your prompt, drop a text file, or attach a GitHub gist ID, and the editor instantly renders it inside a polished code-window frame with syntax highlighting, gradient or image backgrounds, adjustable padding, window styling, and theme controls. When it looks right, you export a PNG or SVG, copy the image to your clipboard, or publish a public link you can tweet directly.
The tool is designed for prompt engineers, AI educators, and anyone who posts prompt content on X/Twitter, LinkedIn, or documentation sites. Because raw prompts are hard to read in a plain text post, PromptShow gives them the same visual treatment popular code-screenshot tools give to source code—making them scannable, on-brand, and easy to re-share. Everything runs in the client, so nothing has to be uploaded to a server just to generate the picture.
PromptShow is free to use, requires no installation beyond a modern browser, and is part of the broader LangGPT ecosystem for structured prompt design. It supports keyboard shortcuts for fast export, multi-language UI, and links out to the open-source repository for anyone who wants to self-host or contribute.
