Haim Moskowitz
Product & Marketing Lead•
PrettyDamnQuick
"Incredibly useful tool, makes my prompts 50x more effective, try it, you'll never go back to your "manual" prompts!"
AI Prompt Optimizer for Any LLM
Paste a prompt, click once, and get an optimized version with the structure, context and constraints that make ChatGPT, Claude and Gemini respond better. Free to start, no signup.
AI prompt optimizer
Try an example prompt
Your prompt
summarize this report for my boss
Demo preview — install the extension for real optimization and Refine mode.
4.9 stars from 132 ratings. 40,000+ users.
What prompt optimization actually does
A vague prompt gives a model too little to work with. When you ask something like “summarize this report,” the model has to guess your audience, length, format and priorities. That guessing is why answers feel generic or miss the mark.
Prompt optimization fixes that by pulling four levers: a clear task, the right context, an explicit output format, and constraints that bound what the model should and should not do. Together, those four elements turn a rough request into instructions a model can follow reliably.
The best structure differs slightly by model. ChatGPT, Claude and Gemini each respond better to slightly different framing. A good prompt optimizer accounts for that instead of applying one generic template everywhere.
Pretty Prompt applies all four levers in one click. You do not need to learn prompt engineering or rewrite by hand. If you want a lighter, everyday entry point, see the lighter, everyday prompt enhancer. For the deeper reference on prompt structure, see the deeper reference on prompt structure.
How the AI prompt optimizer works
Step 1
Paste your prompt
Bring a lazy, vague prompt, or a rough draft that needs structure.
Step 2
Optimize in one click
Pretty Prompt restructures it: it sets the task, fills in missing context, defines the output format and adds constraints.
Step 3
Refine for your model
Answer a couple of optional questions in Refine mode to tune the prompt for ChatGPT, Claude or Gemini, then send it.
Pretty Prompt runs as a Chrome extension inside ChatGPT, Claude, Gemini and other LLMs, so you optimize without leaving the chat.
An optimized prompt, side by side
Summarize reportExample 1 of 4
| Raw prompt | Optimized prompt |
|---|---|
| summarize this report for my boss | Summarize the attached [weekly revenue report] in 5 bullet points for [your VP of Sales]. Lead with the decision needed, then the supporting numbers. Flag any risk in one line. Keep each bullet under 20 words and use plain language, no jargon. |
Same request, but the model no longer has to guess the length, audience, format or priorities.
Model-aware optimization
Pretty Prompt tunes structure for the model you are using. The optimized text works in any LLM, but Refine mode lets you sharpen the prompt for the tool and use case in front of you.
- ChatGPT: optimize prompts for GPT models
- Claude: structure prompts the way Claude prefers
- Gemini: tune prompts for Gemini
Pretty Prompt vs other prompt optimizers
Each tool fits a different need. Here is an honest look at where Pretty Prompt sits next to other options on the market.
| Decision point | Pretty Prompt | promptoptimizer.tools | TripleTen optimizer |
|---|---|---|---|
| Best for | Everyday users who want one-click optimization in the chat | Quick one-off web optimization | Readers exploring the concept |
| Runs in the chat window | Yes (extension) | No | No |
| Signup to start | No (5/week free) | No | No |
| Saves and reuses prompts | Yes (library, Pro) | No | No |
| On-page proof | 4.9 / 132, 40,000 users | "107,000+ optimized" | Article-level |
Best for
Pretty Prompt
Everyday users who want one-click optimization in the chat
promptoptimizer.tools
Quick one-off web optimization
TripleTen optimizer
Readers exploring the concept
Runs in the chat window
Pretty Prompt
Yes (extension)
promptoptimizer.tools
No
TripleTen optimizer
No
Signup to start
Pretty Prompt
No (5/week free)
promptoptimizer.tools
No
TripleTen optimizer
No
Saves and reuses prompts
Pretty Prompt
Yes (library, Pro)
promptoptimizer.tools
No
TripleTen optimizer
No
On-page proof
Pretty Prompt
4.9 / 132, 40,000 users
promptoptimizer.tools
"107,000+ optimized"
TripleTen optimizer
Article-level
See the full comparison hub and plans and limits.
Prompt optimizer FAQ
40,000+ users, 4.9/5 stars
Ophir Shay
Associate•
TLV Partners
"Super simple to onboard and surprisingly intuitive. I started using Pretty Prompt and now I can't imagine going back to manual prompting. It's become part of my daily flow and honestly worth every penny."
Optimize your next prompt in one click
Stop rewriting prompts by hand.