About PromptPiglet
Last updated August 17, 2026
About PromptPiglet
What it does
PromptPiglet helps you write a better prompt before you paste it into a chatbot or an image model. You pick a template, make a couple of choices, and it composes the prompt for you. The composition is deterministic — the same template and choices always produce the same prompt — because prompts are built from curated templates, not written by an AI on the fly. The only time a model sees your text is to work out which template fits (and, if you ask it to, to fill in a few details from your draft). Your draft is never sent anywhere to be rewritten.
The templates are written and reviewed by people, and each option shows you what it will do to the result before you choose it — a preview or an example, not a wall of prompt text.
Who made it
PromptPiglet is an independent project by David Li, built in the open. The templates and the code are public.
Why it is free
A prompt tool that charges before you have seen a result never gets tried, and the useful part — the templates — is worth more shared than sold. So the flow is free, with no account required. An account exists only to keep the templates you save across your devices.
The templates are published under CC-BY-4.0 and the code under Apache-2.0.
What the ads pay for
There are no ads today. When there are, they will appear only on library pages — never inside the flow while you are working — and they pay for the servers and the model calls that match your draft to a template. Ads are never connected to the anonymous identifier your device uses.
Get in touch
Questions, corrections, or a template you think we should have: hello@promptpiglet.com.