Draft, optimize, test, and version your prompts in one structured workspace — then publish or fork the best from the community. Multi-model, free to start, no copy-paste chaos.
$ draft “review this PR and tell me what’s wrong”
free credits / month
model providers
optimize · test · analyze
to start — BYO keys
Structured controls for model, role, context, constraints, tone, and output format. Start from templates instead of a blank chat box.
One click rewrites for clarity, then runs the prompt against real models and scores its quality — so you ship on evidence, not vibes.
Keep a searchable library, track every revision, publish to the public gallery, and fork the community’s best into your own.
The goal isn’t longer prompts — it’s precise, reusable, testable ones. Prompt Expert turns a one-liner into a structured brief a model can follow every time.
Target OpenAI, Anthropic, and Google models from one place.
Save, tag, search, and organize everything you write.
Publish prompts and fork the community’s best into yours.
Track every change across iterations and roll back safely.
Pipe outputs into repeatable, multi-step reasoning flows.
Use your own provider keys, encrypted, for heavier runs.
Open the builder, save your best work, and test the workflow against real prompts before you scale. No card, no paywall.