Connect your own API keys. Use built-in strategies to refine prompts. Run AI locally or in the cloud. Privacy-first.
Users
17
+1 in 30 days
Rating
5.0 / 5
unchanged in 30 days
Ratings
1
0 in 30 days
Store rank
#164K
#137K among extensions
Version
0.5.3
updated 26 Jul 2026
Users
monthly, 9 months
Latest, 21 Oct 2026:17 usersMove the mouse over the chart for any month
Ratings count
monthly, 9 months
Latest, 21 Oct 2026:1 ratingsMove the mouse over the chart for any month
The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.
About PromptSmith - The Optimizing AI Client (BYOK)
PromptSmith is a professional-grade, privacy-first AI extension designed for developers, prompt engineers, and power users. Unlike standard AI tools that lock you into a subscription, PromptSmith acts as a transparent "shell"—you provide the API key (OpenAI, Claude, or Local LLM), and we provide the ultimate workbench to refine, manage, and execute your prompts.
🔧 Key Features
1. Bring Your Own Endpoint (BYOE) & Model Agnostic Connect directly to your preferred AI providers. Whether it's the latest GPT-4 via OpenAI, Claude 3, or a private Local LLM proxies, PromptSmith connects to any standard API endpoint. You pay the provider directly—no middleman markups.
2. "Strategy" Engine: Built-in Optimization Don't just chat; engineer your output.
Auto-Optimization: Use our built-in "Refinement Strategy" to instantly polish vague ideas into high-quality, structured prompts before sending them to the AI.
Custom Workflows: Create and save your own Strategies (combining custom System Prompts + User Prompts) for recurring tasks like code review, translation, or SEO analysis.
3. Local-First Privacy Your data belongs to you. PromptSmith stores your API keys, chat history, and custom strategies locally in your browser. We never transmit your data to our servers.
🚀 Why You Should Install PromptSmith
Stop Paying "AI Tax": Most extensions charge you $20/month just to resell you cheap API access. With PromptSmith, you use your own keys, paying only for what you use (often less than $5/month for heavy usage).
Better Results, Less Frustration: The raw API is powerful but hard to control. Our "Strategy" feature acts as a quality assurance layer, ensuring your prompts are optimized before you spend tokens on them.
Total Freedom: You are not limited by a vendor's model choice. Switch between a local model for free privacy and a cloud model for complex reasoning in seconds.
Forge your intelligence. Install PromptSmith today.
Growth
Window
Users
Change
Ratings
Rating
7 days
+3
+21.4%
0
0.00
30 days
+1
+6.2%
0
0.00
6 months
+5
+41.7%
0
0.00
Chrome Web Store search rankings
Where PromptSmith - The Optimizing AI Client (BYOK) appears when people search the store, with the 30 day change