PromptPerfect alternative
PromptPerfect closed. Your prompts still need fixing.
PromptPerfect, the prompt optimizer from Jina AI, shut down on September 1, 2026. If you relied on it for better prompts, PromptFix does that job: it scores your prompt out of 100, rewrites it, and shows you what changed.
No credit card · 15 AI improvements per month (analyses or fixes)
How it works
- 1
Paste the prompt you would send
Anything you would type into ChatGPT, Claude or Gemini: an email request, a study outline, a job description.
- 2
See its score out of 100
PromptFix reads the prompt for what is missing, such as who it is for, the format you want and the limits, and scores it before anything is sent.
- 3
Get the fixed prompt, with the reasons
You get a rewritten prompt and the changes it made, so you learn what a stronger prompt looks like instead of just copying one.
What you get with PromptFix
| Score before you send | Every prompt gets a reliability score out of 100, with what pulled it down. |
|---|---|
| Rewrite | A fixed version of your prompt, with the changes explained. |
| Same answer every time? | On paid plans, the improved prompt is run three times and PromptFix flags where the answers disagree. |
| Where you use it | On promptfix.online, and in the Chrome extension on the sites where you already write. |
| Your style | Preference profiles keep your tone and rules, so you stop re-explaining yourself. |
| Free plan | 15 AI improvements per month (analyses or fixes), no card. |
Plans and prices are on the pricing page. PromptFix is not affiliated with PromptPerfect or Jina AI.
Try it on the prompt you were about to send
It takes under a minute, and the free plan stays free.
Score a prompt free